USCG General Subjects Exam Module Chief
Engineer Uninspected Fishing Vessel
ID14100
,USCG General Subjects Exam Module Chief Engineer Uninspected Fishing Vessel
1. An alarm occurs during machinery operation. With respect to Chartwork, 10. Ballast is proposed to correct a list. Which action is most likely to prevent
publications, voyage planning and position fixing, what is the best FIRST action? recurrence of a problem involving Cargo operations?
A. Discharge a small contaminant amount rather than initiating the response procedure. A. Move heavy cargo higher to free lower deck space without recalculation.
B. Make an unverified ballast change solely to improve trim. B. Account for free-surface and weight-shift effects when evaluating stability and
C. Depart with required safety equipment inoperative because the voyage is short. trim, then confirm that the corrective action is effective before closure.
D. Correct a required safety-equipment deficiency before sailing when the vessel C. Correct a list by moving weight without checking stability impact.
cannot legally or safely depart. D. Accept a loading condition based only on even draft readings.
Correct Answer: D Correct Answer: B
Explanation: The strongest exam-style response is the one that controls immediate risk, Explanation: The correct response protects the integrity of the process: establish the
checks the relevant condition, and then acts within the defined requirements for facts, apply the appropriate control, and verify the result before closure.
Chartwork, publications, voyage planning and position fixing.
11. A navigation fix does not agree with another available source. Which sequence
2. A vessel approaches restricted visibility with traffic nearby. Which evidence is most appropriate when carrying out hazards relevant to vessel type?
is most important when evaluating voyage planning? A. Make an unverified ballast change solely to improve trim.
A. Use a single navigation source after another source shows a material discrepancy. B. Contain and report a pollution risk using the required onboard response and
B. Assume constant bearing is harmless when range is decreasing. documentation process, then verify the resulting state before moving to the next step.
C. Review weather, tide/current, under-keel clearance and route hazards and compare C. Depart with required safety equipment inoperative because the voyage is short.
the findings with the applicable criteria. D. Discharge a small contaminant amount rather than initiating the response procedure.
D. Silence a machinery alarm and continue at the same load without investigation. Correct Answer: B
Correct Answer: C Explanation: This approach preserves control of the situation while producing evidence
Explanation: The correct response protects the integrity of the process: establish the that can confirm whether the action actually corrected the issue involving hazards
facts, apply the appropriate control, and verify the result before closure. relevant to vessel type.
3. A vessel must plan a passage through constrained waters. Which response best 12. An enclosed-space task is proposed without a completed entry check; the
controls the primary risk associated with position fixing? vessel draft increases after cargo loading. Which choice demonstrates the
A. Depart with required safety equipment inoperative because the voyage is short. strongest control of Marine safety systems, lifesaving appliances and emergency
B. Discharge a small contaminant amount rather than initiating the response procedure. procedures?
C. Make an unverified ballast change solely to improve trim. A. Continue the transfer until the planned quantity is complete.
D. Correct a required safety-equipment deficiency before sailing when the vessel B. Stop or control the operation, protect personnel and follow the required emergency
cannot legally or safely depart. or pollution-response procedure.
Correct Answer: D C. Depart with required safety equipment unavailable because conditions are calm.
Explanation: This approach preserves control of the situation while producing evidence D. Enter an enclosed space based only on a prior atmosphere test.
that can confirm whether the action actually corrected the issue involving position Correct Answer: B
fixing. Explanation: This answer uses verified evidence before action, which reduces the chance
of masking the real problem and supports a traceable decision about Marine safety
4. A position fix disagrees with the expected track; a target bearing remains
systems, lifesaving appliances and emergency procedures.
nearly constant as range decreases. Before proceeding with work involving
Meteorology, tides, currents and environmental conditions affecting safe 13. Required lifesaving equipment is not ready before departure. What is required
navigation, what should be verified? before accepting the result related to Marine safety systems?
A. Assume there is no risk because the other vessel is visually small. A. Enter an enclosed space based only on a prior atmosphere test.
B. Continue on an uncertain position until the next scheduled fix. B. Wash a small spill overboard rather than initiating the response process.
C. Make a series of small course changes that are difficult to detect. C. Depart with required safety equipment unavailable because conditions are calm.
D. Review bearing/range trend, own-ship course/speed, target aspect and applicable D. Review equipment inventory, inspection status and operational readiness and compare
rule and compare the findings with the applicable criteria. the findings with the applicable criteria.
Correct Answer: D Correct Answer: D
Explanation: This answer uses verified evidence before action, which reduces the chance Explanation: The selected action best supports safe, compliant, and technically sound
of masking the real problem and supports a traceable decision about Meteorology, tides, performance because it addresses Marine safety systems using observable evidence rather
currents and environmental conditions affecting safe navigation. than convenience.
5. The vessel approaches a traffic or pilotage constraint. Which troubleshooting 14. An alarm occurs during machinery operation. Under these conditions, when
approach is most appropriate for environmental conditions affecting safe should the issue involving lifesaving appliances be escalated?
navigation? A. Use a single navigation source after another source shows a material discrepancy.
A. Cross-check position, traffic and navigation sources before altering the passage B. Assume constant bearing is harmless when range is decreasing.
plan. C. Silence a machinery alarm and continue at the same load without investigation.
B. Make a series of small course changes that are difficult to detect. D. Use all available means to assess collision risk and take early, substantial action
C. Rely on one electronic source when independent information conflicts. consistent with the applicable navigation rules.
D. Continue on an uncertain position until the next scheduled fix. Correct Answer: D
Correct Answer: A Explanation: A defensible professional decision should be based on current evidence and
Explanation: The selected action best supports safe, compliant, and technically sound applicable criteria. The other choices rely on assumption, remove safeguards, or change
performance because it addresses environmental conditions affecting safe navigation conditions before the cause is understood.
using observable evidence rather than convenience.
15. An enclosed-space task is proposed without a completed entry check. Which
6. A slack tank creates additional free-surface effect. Which action best comparison is most useful for interpreting emergency procedures?
supports a defensible decision about Ship stability, trim, loading and basic A. Wash a small spill overboard rather than initiating the response process.
stability calculations? B. Review equipment inventory, inspection status and operational readiness and compare
A. Move heavy cargo higher to free lower deck space without recalculation. the findings with the applicable criteria.
B. Correct a list by moving weight without checking stability impact. C. Enter an enclosed space based only on a prior atmosphere test.
C. Recalculate the relevant stability condition before accepting the loading or D. Continue the transfer until the planned quantity is complete.
ballast change. Correct Answer: B
D. Accept a loading condition based only on even draft readings. Explanation: This is the most appropriate option because it connects the observed
Correct Answer: C condition to the governing requirement and leaves a record of why the decision was made.
Explanation: A defensible professional decision should be based on current evidence and
16. A machinery temperature rises above its normal operating trend; a machinery
applicable criteria. The other choices rely on assumption, remove safeguards, or change
conditions before the cause is understood.
temperature rises 20 C above its normal trend. Which action best distinguishes
the underlying cause from a symptom in Fire prevention, firefighting, damage
7. Cargo loading changes the vessel's vertical center of gravity. A change control and abandonment procedures?
affecting Ship stability is being considered. How should it be handled? A. Reset a protective trip repeatedly without finding the cause.
A. Accept a loading condition based only on even draft readings. B. Disable an alarm that is interrupting operations.
B. Account for free-surface and weight-shift effects when evaluating stability and C. Compare operating pressures/temperatures, equipment status and recent changes to
trim. isolate the fault safely, then confirm that the corrective action is effective before
C. Ignore slack-tank effects because total liquid weight is unchanged. closure.
D. Correct a list by moving weight without checking stability impact. D. Increase machinery load to see whether the abnormal indication clears.
Correct Answer: B Correct Answer: C
Explanation: This is the most appropriate option because it connects the observed Explanation: The correct choice follows a verify-act-confirm sequence. That is more
condition to the governing requirement and leaves a record of why the decision was made. reliable than bypassing controls or making multiple uncontrolled changes.
8. A slack tank creates additional free-surface effect; a navigation fix differs 17. A towing or deck operation is affected by changing weather. Which response is
by 0.8 nautical mile from another source. The abnormal condition directly affects most consistent with the professional or compliance requirements governing Fire
basic stability calculations. What is the most appropriate response? prevention?
A. Correct a list by moving weight without checking stability impact. A. Make an unverified ballast change solely to improve trim.
B. Recalculate the relevant stability condition before accepting the loading or B. Depart with required safety equipment inoperative because the voyage is short.
ballast change. C. Discharge a small contaminant amount rather than initiating the response procedure.
C. Move heavy cargo higher to free lower deck space without recalculation. D. Correct a required safety-equipment deficiency before sailing when the vessel
D. Ignore slack-tank effects because total liquid weight is unchanged. cannot legally or safely depart.
Correct Answer: B Correct Answer: D
Explanation: The correct choice follows a verify-act-confirm sequence. That is more Explanation: The strongest exam-style response is the one that controls immediate risk,
reliable than bypassing controls or making multiple uncontrolled changes. checks the relevant condition, and then acts within the defined requirements for Fire
prevention.
9. A deck load is shifted to a higher position. Which documentation approach best
supports traceability for Cargo operations, stowage, securing and hazards 18. An electrical protective device trips repeatedly. Which handoff practice best
relevant to vessel type? reduces error risk for damage control?
A. Ignore slack-tank effects because total liquid weight is unchanged. A. Disable an alarm that is interrupting operations.
B. Accept a loading condition based only on even draft readings. B. Record the observed condition, supporting evidence, decision and responsible
C. Record the observed condition, supporting evidence, decision and responsible follow-up; communicate any unresolved risk to the next responsible person.
follow-up; communicate any unresolved risk to the next responsible person. C. Reset a protective trip repeatedly without finding the cause.
D. Move heavy cargo higher to free lower deck space without recalculation. D. Make several plant changes simultaneously before recording the original condition.
Correct Answer: C Correct Answer: B
Explanation: The strongest exam-style response is the one that controls immediate risk, Explanation: The correct response protects the integrity of the process: establish the
checks the relevant condition, and then acts within the defined requirements for Cargo facts, apply the appropriate control, and verify the result before closure.
operations, stowage, securing and hazards relevant to vessel type.
1
,USCG General Subjects Exam Module Chief Engineer Uninspected Fishing Vessel
19. A pre-departure check identifies a safety-equipment deficiency. Which 28. A vessel approaches restricted visibility with traffic nearby; visibility
decision about abandonment procedures is best supported by the available falls below one nautical mile. The abnormal condition directly affects STCW
evidence? competence. What is the most appropriate response?
A. Discharge a small contaminant amount rather than initiating the response procedure. A. Silence a machinery alarm and continue at the same load without investigation.
B. Make an unverified ballast change solely to improve trim. B. Use a single navigation source after another source shows a material discrepancy.
C. Correct a required safety-equipment deficiency before sailing when the vessel C. Assume constant bearing is harmless when range is decreasing.
cannot legally or safely depart. D. Use all available means to assess collision risk and take early, substantial action
D. Depart with required safety equipment inoperative because the voyage is short. consistent with the applicable navigation rules.
Correct Answer: C Correct Answer: D
Explanation: This approach preserves control of the situation while producing evidence Explanation: This answer uses verified evidence before action, which reduces the chance
that can confirm whether the action actually corrected the issue involving abandonment of masking the real problem and supports a traceable decision about STCW competence.
procedures.
29. Another vessel remains on nearly constant bearing while range decreases.
20. A pump loses discharge pressure while demand remains constant; a navigation Which documentation approach best supports traceability for professional
fix differs by 0.8 nautical mile from another source. Which review step adds the watchkeeping standards?
most value before closing work involving Marine engineering or electrical systems A. Make a series of small course changes that are difficult to detect.
applicable to the named officer/module? B. Rely on one electronic source when independent information conflicts.
A. Reset a protective trip repeatedly without finding the cause. C. Continue on an uncertain position until the next scheduled fix.
B. Disable an alarm that is interrupting operations. D. Record the observed condition, supporting evidence, decision and responsible
C. Increase machinery load to see whether the abnormal indication clears. follow-up; communicate any unresolved risk to the next responsible person.
D. Compare operating pressures/temperatures, equipment status and recent changes to Correct Answer: D
isolate the fault safely, then confirm that the corrective action is effective before Explanation: The selected action best supports safe, compliant, and technically sound
closure. performance because it addresses professional watchkeeping standards using observable
Correct Answer: D evidence rather than convenience.
Explanation: This answer uses verified evidence before action, which reduces the chance
30. A vessel approaches restricted visibility with traffic nearby. Which action
of masking the real problem and supports a traceable decision about Marine engineering
or electrical systems applicable to the named officer/module. is most likely to prevent recurrence of a problem involving Communications, GMDSS
awareness and distress/urgency procedures?
21. A machinery temperature rises above its normal operating trend. With respect A. Verify the loading and stability data before accepting a cargo or ballast change,
to Marine engineering, what is the best FIRST action? then confirm that the corrective action is effective before closure.
A. Increase machinery load to see whether the abnormal indication clears. B. Assume constant bearing is harmless when range is decreasing.
B. Make several plant changes simultaneously before recording the original condition. C. Silence a machinery alarm and continue at the same load without investigation.
C. Compare operating pressures/temperatures, equipment status and recent changes to D. Use a single navigation source after another source shows a material discrepancy.
isolate the fault safely. Correct Answer: A
D. Disable an alarm that is interrupting operations. Explanation: A defensible professional decision should be based on current evidence and
Correct Answer: C applicable criteria. The other choices rely on assumption, remove safeguards, or change
Explanation: The selected action best supports safe, compliant, and technically sound conditions before the cause is understood.
performance because it addresses Marine engineering using observable evidence rather
than convenience. 31. A pre-departure check identifies a safety-equipment deficiency. Which
sequence is most appropriate when carrying out GMDSS awareness?
22. An engineering watch observes an abnormal temperature or pressure. Which A. Discharge a small contaminant amount rather than initiating the response procedure.
evidence is most important when evaluating electrical systems applicable to the B. Verify the loading and stability data before accepting a cargo or ballast change,
named officer/module? then verify the resulting state before moving to the next step.
A. Review machinery pressures, temperatures, alarms and operating limits and compare C. Make an unverified ballast change solely to improve trim.
the findings with the applicable criteria. D. Depart with required safety equipment inoperative because the voyage is short.
B. Silence a machinery alarm and continue at the same load without investigation. Correct Answer: B
C. Use a single navigation source after another source shows a material discrepancy. Explanation: This is the most appropriate option because it connects the observed
D. Assume constant bearing is harmless when range is decreasing. condition to the governing requirement and leaves a record of why the decision was made.
Correct Answer: A
Explanation: A defensible professional decision should be based on current evidence and
32. A deck watch detects a change in bearing to another vessel; a target bearing
applicable criteria. The other choices rely on assumption, remove safeguards, or change remains nearly constant as range decreases. Which choice demonstrates the
conditions before the cause is understood. strongest control of distress/urgency procedures?
A. Use all available means to assess collision risk and take early, substantial action
23. A spill occurs during machinery or cargo operations. Which response best consistent with the applicable navigation rules.
controls the primary risk associated with Pollution prevention, MARPOL principles B. Use a single navigation source after another source shows a material discrepancy.
and environmental protection? C. Assume constant bearing is harmless when range is decreasing.
A. Wash a small spill overboard rather than initiating the response process. D. Silence a machinery alarm and continue at the same load without investigation.
B. Enter an enclosed space based only on a prior atmosphere test. Correct Answer: A
C. Correct a required safety-equipment deficiency and verify readiness before Explanation: The correct choice follows a verify-act-confirm sequence. That is more
proceeding. reliable than bypassing controls or making multiple uncontrolled changes.
D. Continue the transfer until the planned quantity is complete.
Correct Answer: C 33. A navigation fix does not agree with another available source. What is
Explanation: This is the most appropriate option because it connects the observed required before accepting the result related to Chartwork, publications, voyage
condition to the governing requirement and leaves a record of why the decision was made. planning and position fixing?
A. Depart with required safety equipment inoperative because the voyage is short.
24. A pollution-prevention barrier is found compromised during transfer; B. Review required safety equipment and readiness before departure and compare the
visibility falls below one nautical mile. Before proceeding with work involving findings with the applicable criteria.
Pollution prevention, what should be verified? C. Discharge a small contaminant amount rather than initiating the response procedure.
A. Continue the transfer until the planned quantity is complete. D. Make an unverified ballast change solely to improve trim.
B. Review source/quantity of release, containment condition, notifications and Correct Answer: B
response equipment and compare the findings with the applicable criteria. Explanation: The strongest exam-style response is the one that controls immediate risk,
C. Depart with required safety equipment unavailable because conditions are calm. checks the relevant condition, and then acts within the defined requirements for
D. Enter an enclosed space based only on a prior atmosphere test. Chartwork, publications, voyage planning and position fixing.
Correct Answer: B
Explanation: The correct choice follows a verify-act-confirm sequence. That is more
34. A stability calculation is required after cargo or ballast changes. Under
reliable than bypassing controls or making multiple uncontrolled changes. these conditions, when should the issue involving voyage planning be escalated?
A. Silence a machinery alarm and continue at the same load without investigation.
25. A towing or deck operation is affected by changing weather. Which B. Use all available means to assess collision risk and take early, substantial action
troubleshooting approach is most appropriate for MARPOL principles? consistent with the applicable navigation rules.
A. Discharge a small contaminant amount rather than initiating the response procedure. C. Use a single navigation source after another source shows a material discrepancy.
B. Correct a required safety-equipment deficiency before sailing when the vessel D. Assume constant bearing is harmless when range is decreasing.
cannot legally or safely depart. Correct Answer: B
C. Make an unverified ballast change solely to improve trim. Explanation: The correct response protects the integrity of the process: establish the
D. Depart with required safety equipment inoperative because the voyage is short. facts, apply the appropriate control, and verify the result before closure.
Correct Answer: B
35. A towing or deck operation is affected by changing weather. Which comparison
Explanation: The strongest exam-style response is the one that controls immediate risk,
checks the relevant condition, and then acts within the defined requirements for MARPOL is most useful for interpreting position fixing?
principles. A. Make an unverified ballast change solely to improve trim.
B. Review stability data, loading condition and free-surface effects and compare the
26. A spill occurs during machinery or cargo operations. Which action best findings with the applicable criteria.
supports a defensible decision about environmental protection? C. Depart with required safety equipment inoperative because the voyage is short.
A. Stop or control the operation, protect personnel and follow the required emergency D. Discharge a small contaminant amount rather than initiating the response procedure.
or pollution-response procedure. Correct Answer: B
B. Depart with required safety equipment unavailable because conditions are calm. Explanation: This approach preserves control of the situation while producing evidence
C. Continue the transfer until the planned quantity is complete. that can confirm whether the action actually corrected the issue involving position
D. Wash a small spill overboard rather than initiating the response process. fixing.
Correct Answer: A
36. A position fix disagrees with the expected track; the vessel draft increases
Explanation: The correct response protects the integrity of the process: establish the
facts, apply the appropriate control, and verify the result before closure. after cargo loading. Which action best distinguishes the underlying cause from a
symptom in Meteorology, tides, currents and environmental conditions affecting
27. Visibility falls and several targets appear on radar. A change affecting STCW safe navigation?
competence, drills, records and professional watchkeeping standards is being A. Assume there is no risk because the other vessel is visually small.
considered. How should it be handled? B. Continue on an uncertain position until the next scheduled fix.
A. Rely on one electronic source when independent information conflicts. C. Make a series of small course changes that are difficult to detect.
B. Make a series of small course changes that are difficult to detect. D. Cross-check position, traffic and navigation sources before altering the passage
C. Cross-check position, traffic and navigation sources before altering the passage plan, then confirm that the corrective action is effective before closure.
plan. Correct Answer: D
D. Assume there is no risk because the other vessel is visually small. Explanation: This answer uses verified evidence before action, which reduces the chance
Correct Answer: C of masking the real problem and supports a traceable decision about Meteorology, tides,
Explanation: This approach preserves control of the situation while producing evidence currents and environmental conditions affecting safe navigation.
that can confirm whether the action actually corrected the issue involving STCW
competence, drills, records and professional watchkeeping standards.
2
, USCG General Subjects Exam Module Chief Engineer Uninspected Fishing Vessel
37. The vessel approaches a traffic or pilotage constraint. Which response is 46. A navigation fix does not agree with another available source. Which action
most consistent with the professional or compliance requirements governing best supports a defensible decision about lifesaving appliances?
environmental conditions affecting safe navigation? A. Silence a machinery alarm and continue at the same load without investigation.
A. Make a series of small course changes that are difficult to detect. B. Use a single navigation source after another source shows a material discrepancy.
B. Rely on one electronic source when independent information conflicts. C. Assume constant bearing is harmless when range is decreasing.
C. Continue on an uncertain position until the next scheduled fix. D. Use all available means to assess collision risk and take early, substantial action
D. Cross-check position, traffic and navigation sources before altering the passage consistent with the applicable navigation rules.
plan. Correct Answer: D
Correct Answer: D Explanation: A defensible professional decision should be based on current evidence and
Explanation: The selected action best supports safe, compliant, and technically sound applicable criteria. The other choices rely on assumption, remove safeguards, or change
performance because it addresses environmental conditions affecting safe navigation conditions before the cause is understood.
using observable evidence rather than convenience.
47. An enclosed-space task is proposed without a completed entry check. A change
38. A slack tank creates additional free-surface effect. Which handoff practice affecting emergency procedures is being considered. How should it be handled?
best reduces error risk for Ship stability, trim, loading and basic stability A. Wash a small spill overboard rather than initiating the response process.
calculations? B. Correct a required safety-equipment deficiency and verify readiness before
A. Move heavy cargo higher to free lower deck space without recalculation. proceeding.
B. Correct a list by moving weight without checking stability impact. C. Enter an enclosed space based only on a prior atmosphere test.
C. Accept a loading condition based only on even draft readings. D. Continue the transfer until the planned quantity is complete.
D. Record the observed condition, supporting evidence, decision and responsible Correct Answer: B
follow-up; communicate any unresolved risk to the next responsible person. Explanation: This is the most appropriate option because it connects the observed
Correct Answer: D condition to the governing requirement and leaves a record of why the decision was made.
Explanation: A defensible professional decision should be based on current evidence and
48. A machinery temperature rises above its normal operating trend; a navigation
applicable criteria. The other choices rely on assumption, remove safeguards, or change
conditions before the cause is understood.
fix differs by 0.8 nautical mile from another source. The abnormal condition
directly affects Fire prevention, firefighting, damage control and abandonment
39. Cargo loading changes the vessel's vertical center of gravity. Which decision procedures. What is the most appropriate response?
about Ship stability is best supported by the available evidence? A. Reset a protective trip repeatedly without finding the cause.
A. Account for free-surface and weight-shift effects when evaluating stability and B. Disable an alarm that is interrupting operations.
trim. C. Increase machinery load to see whether the abnormal indication clears.
B. Accept a loading condition based only on even draft readings. D. Protect the plant, verify the indication and diagnose the affected system before
C. Ignore slack-tank effects because total liquid weight is unchanged. resetting or increasing load.
D. Correct a list by moving weight without checking stability impact. Correct Answer: D
Correct Answer: A Explanation: The correct choice follows a verify-act-confirm sequence. That is more
Explanation: This is the most appropriate option because it connects the observed reliable than bypassing controls or making multiple uncontrolled changes.
condition to the governing requirement and leaves a record of why the decision was made.
49. A pollution-prevention control is compromised during operations. Which
40. A slack tank creates additional free-surface effect; a target bearing remains documentation approach best supports traceability for Fire prevention?
nearly constant as range decreases. Which review step adds the most value before A. Discharge a small contaminant amount rather than initiating the response procedure.
closing work involving basic stability calculations? B. Make an unverified ballast change solely to improve trim.
A. Correct a list by moving weight without checking stability impact. C. Depart with required safety equipment inoperative because the voyage is short.
B. Move heavy cargo higher to free lower deck space without recalculation. D. Record the observed condition, supporting evidence, decision and responsible
C. Account for free-surface and weight-shift effects when evaluating stability and follow-up; communicate any unresolved risk to the next responsible person.
trim, then confirm that the corrective action is effective before closure. Correct Answer: D
D. Ignore slack-tank effects because total liquid weight is unchanged. Explanation: The strongest exam-style response is the one that controls immediate risk,
Correct Answer: C checks the relevant condition, and then acts within the defined requirements for Fire
Explanation: The correct choice follows a verify-act-confirm sequence. That is more prevention.
reliable than bypassing controls or making multiple uncontrolled changes.
50. An electrical protective device trips repeatedly. Which action is most likely
41. A deck load is shifted to a higher position. With respect to Cargo to prevent recurrence of a problem involving damage control?
operations, stowage, securing and hazards relevant to vessel type, what is the A. Disable an alarm that is interrupting operations.
best FIRST action? B. Reset a protective trip repeatedly without finding the cause.
A. Account for free-surface and weight-shift effects when evaluating stability and C. Make several plant changes simultaneously before recording the original condition.
trim. D. Compare operating pressures/temperatures, equipment status and recent changes to
B. Ignore slack-tank effects because total liquid weight is unchanged. isolate the fault safely, then confirm that the corrective action is effective before
C. Accept a loading condition based only on even draft readings. closure.
D. Move heavy cargo higher to free lower deck space without recalculation. Correct Answer: D
Correct Answer: A Explanation: The correct response protects the integrity of the process: establish the
Explanation: The strongest exam-style response is the one that controls immediate risk, facts, apply the appropriate control, and verify the result before closure.
checks the relevant condition, and then acts within the defined requirements for Cargo
51. An alarm occurs during machinery operation. Which sequence is most
operations, stowage, securing and hazards relevant to vessel type.
appropriate when carrying out abandonment procedures?
42. Ballast is proposed to correct a list. Which evidence is most important when A. Depart with required safety equipment inoperative because the voyage is short.
evaluating Cargo operations? B. Correct a required safety-equipment deficiency before sailing when the vessel
A. Move heavy cargo higher to free lower deck space without recalculation. cannot legally or safely depart, then verify the resulting state before moving to the
B. Correct a list by moving weight without checking stability impact. next step.
C. Accept a loading condition based only on even draft readings. C. Discharge a small contaminant amount rather than initiating the response procedure.
D. Review displacement, weight location, GM/stability data and tank condition and D. Make an unverified ballast change solely to improve trim.
compare the findings with the applicable criteria. Correct Answer: B
Correct Answer: D Explanation: This approach preserves control of the situation while producing evidence
Explanation: The correct response protects the integrity of the process: establish the that can confirm whether the action actually corrected the issue involving abandonment
facts, apply the appropriate control, and verify the result before closure. procedures.
43. A vessel approaches restricted visibility with traffic nearby. Which response 52. A pump loses discharge pressure while demand remains constant; a target
best controls the primary risk associated with hazards relevant to vessel type? bearing remains nearly constant as range decreases. Which choice demonstrates the
A. Discharge a small contaminant amount rather than initiating the response procedure. strongest control of Marine engineering or electrical systems applicable to the
B. Make an unverified ballast change solely to improve trim. named officer/module?
C. Depart with required safety equipment inoperative because the voyage is short. A. Reset a protective trip repeatedly without finding the cause.
D. Correct a required safety-equipment deficiency before sailing when the vessel B. Disable an alarm that is interrupting operations.
cannot legally or safely depart. C. Increase machinery load to see whether the abnormal indication clears.
Correct Answer: D D. Protect the plant, verify the indication and diagnose the affected system before
Explanation: This approach preserves control of the situation while producing evidence resetting or increasing load.
that can confirm whether the action actually corrected the issue involving hazards Correct Answer: D
relevant to vessel type. Explanation: This answer uses verified evidence before action, which reduces the chance
of masking the real problem and supports a traceable decision about Marine engineering
44. An enclosed-space task is proposed without a completed entry check; or electrical systems applicable to the named officer/module.
visibility falls below one nautical mile. Before proceeding with work involving
Marine safety systems, lifesaving appliances and emergency procedures, what 53. A machinery temperature rises above its normal operating trend. What is
should be verified? required before accepting the result related to Marine engineering?
A. Continue the transfer until the planned quantity is complete. A. Increase machinery load to see whether the abnormal indication clears.
B. Depart with required safety equipment unavailable because conditions are calm. B. Make several plant changes simultaneously before recording the original condition.
C. Review source/quantity of release, containment condition, notifications and C. Review protective-device indication, circuit condition and recent configuration
response equipment and compare the findings with the applicable criteria. change and compare the findings with the applicable criteria.
D. Enter an enclosed space based only on a prior atmosphere test. D. Disable an alarm that is interrupting operations.
Correct Answer: C Correct Answer: C
Explanation: This answer uses verified evidence before action, which reduces the chance Explanation: The selected action best supports safe, compliant, and technically sound
of masking the real problem and supports a traceable decision about Marine safety performance because it addresses Marine engineering using observable evidence rather
systems, lifesaving appliances and emergency procedures. than convenience.
45. Required lifesaving equipment is not ready before departure. Which 54. A vessel must plan a passage through constrained waters. Under these
troubleshooting approach is most appropriate for Marine safety systems? conditions, when should the issue involving electrical systems applicable to the
A. Enter an enclosed space based only on a prior atmosphere test. named officer/module be escalated?
B. Wash a small spill overboard rather than initiating the response process. A. Assume constant bearing is harmless when range is decreasing.
C. Correct a required safety-equipment deficiency and verify readiness before B. Silence a machinery alarm and continue at the same load without investigation.
proceeding. C. Use a single navigation source after another source shows a material discrepancy.
D. Depart with required safety equipment unavailable because conditions are calm. D. Use all available means to assess collision risk and take early, substantial action
Correct Answer: C consistent with the applicable navigation rules.
Explanation: The selected action best supports safe, compliant, and technically sound Correct Answer: D
performance because it addresses Marine safety systems using observable evidence rather Explanation: A defensible professional decision should be based on current evidence and
than convenience. applicable criteria. The other choices rely on assumption, remove safeguards, or change
conditions before the cause is understood.
3
Engineer Uninspected Fishing Vessel
ID14100
,USCG General Subjects Exam Module Chief Engineer Uninspected Fishing Vessel
1. An alarm occurs during machinery operation. With respect to Chartwork, 10. Ballast is proposed to correct a list. Which action is most likely to prevent
publications, voyage planning and position fixing, what is the best FIRST action? recurrence of a problem involving Cargo operations?
A. Discharge a small contaminant amount rather than initiating the response procedure. A. Move heavy cargo higher to free lower deck space without recalculation.
B. Make an unverified ballast change solely to improve trim. B. Account for free-surface and weight-shift effects when evaluating stability and
C. Depart with required safety equipment inoperative because the voyage is short. trim, then confirm that the corrective action is effective before closure.
D. Correct a required safety-equipment deficiency before sailing when the vessel C. Correct a list by moving weight without checking stability impact.
cannot legally or safely depart. D. Accept a loading condition based only on even draft readings.
Correct Answer: D Correct Answer: B
Explanation: The strongest exam-style response is the one that controls immediate risk, Explanation: The correct response protects the integrity of the process: establish the
checks the relevant condition, and then acts within the defined requirements for facts, apply the appropriate control, and verify the result before closure.
Chartwork, publications, voyage planning and position fixing.
11. A navigation fix does not agree with another available source. Which sequence
2. A vessel approaches restricted visibility with traffic nearby. Which evidence is most appropriate when carrying out hazards relevant to vessel type?
is most important when evaluating voyage planning? A. Make an unverified ballast change solely to improve trim.
A. Use a single navigation source after another source shows a material discrepancy. B. Contain and report a pollution risk using the required onboard response and
B. Assume constant bearing is harmless when range is decreasing. documentation process, then verify the resulting state before moving to the next step.
C. Review weather, tide/current, under-keel clearance and route hazards and compare C. Depart with required safety equipment inoperative because the voyage is short.
the findings with the applicable criteria. D. Discharge a small contaminant amount rather than initiating the response procedure.
D. Silence a machinery alarm and continue at the same load without investigation. Correct Answer: B
Correct Answer: C Explanation: This approach preserves control of the situation while producing evidence
Explanation: The correct response protects the integrity of the process: establish the that can confirm whether the action actually corrected the issue involving hazards
facts, apply the appropriate control, and verify the result before closure. relevant to vessel type.
3. A vessel must plan a passage through constrained waters. Which response best 12. An enclosed-space task is proposed without a completed entry check; the
controls the primary risk associated with position fixing? vessel draft increases after cargo loading. Which choice demonstrates the
A. Depart with required safety equipment inoperative because the voyage is short. strongest control of Marine safety systems, lifesaving appliances and emergency
B. Discharge a small contaminant amount rather than initiating the response procedure. procedures?
C. Make an unverified ballast change solely to improve trim. A. Continue the transfer until the planned quantity is complete.
D. Correct a required safety-equipment deficiency before sailing when the vessel B. Stop or control the operation, protect personnel and follow the required emergency
cannot legally or safely depart. or pollution-response procedure.
Correct Answer: D C. Depart with required safety equipment unavailable because conditions are calm.
Explanation: This approach preserves control of the situation while producing evidence D. Enter an enclosed space based only on a prior atmosphere test.
that can confirm whether the action actually corrected the issue involving position Correct Answer: B
fixing. Explanation: This answer uses verified evidence before action, which reduces the chance
of masking the real problem and supports a traceable decision about Marine safety
4. A position fix disagrees with the expected track; a target bearing remains
systems, lifesaving appliances and emergency procedures.
nearly constant as range decreases. Before proceeding with work involving
Meteorology, tides, currents and environmental conditions affecting safe 13. Required lifesaving equipment is not ready before departure. What is required
navigation, what should be verified? before accepting the result related to Marine safety systems?
A. Assume there is no risk because the other vessel is visually small. A. Enter an enclosed space based only on a prior atmosphere test.
B. Continue on an uncertain position until the next scheduled fix. B. Wash a small spill overboard rather than initiating the response process.
C. Make a series of small course changes that are difficult to detect. C. Depart with required safety equipment unavailable because conditions are calm.
D. Review bearing/range trend, own-ship course/speed, target aspect and applicable D. Review equipment inventory, inspection status and operational readiness and compare
rule and compare the findings with the applicable criteria. the findings with the applicable criteria.
Correct Answer: D Correct Answer: D
Explanation: This answer uses verified evidence before action, which reduces the chance Explanation: The selected action best supports safe, compliant, and technically sound
of masking the real problem and supports a traceable decision about Meteorology, tides, performance because it addresses Marine safety systems using observable evidence rather
currents and environmental conditions affecting safe navigation. than convenience.
5. The vessel approaches a traffic or pilotage constraint. Which troubleshooting 14. An alarm occurs during machinery operation. Under these conditions, when
approach is most appropriate for environmental conditions affecting safe should the issue involving lifesaving appliances be escalated?
navigation? A. Use a single navigation source after another source shows a material discrepancy.
A. Cross-check position, traffic and navigation sources before altering the passage B. Assume constant bearing is harmless when range is decreasing.
plan. C. Silence a machinery alarm and continue at the same load without investigation.
B. Make a series of small course changes that are difficult to detect. D. Use all available means to assess collision risk and take early, substantial action
C. Rely on one electronic source when independent information conflicts. consistent with the applicable navigation rules.
D. Continue on an uncertain position until the next scheduled fix. Correct Answer: D
Correct Answer: A Explanation: A defensible professional decision should be based on current evidence and
Explanation: The selected action best supports safe, compliant, and technically sound applicable criteria. The other choices rely on assumption, remove safeguards, or change
performance because it addresses environmental conditions affecting safe navigation conditions before the cause is understood.
using observable evidence rather than convenience.
15. An enclosed-space task is proposed without a completed entry check. Which
6. A slack tank creates additional free-surface effect. Which action best comparison is most useful for interpreting emergency procedures?
supports a defensible decision about Ship stability, trim, loading and basic A. Wash a small spill overboard rather than initiating the response process.
stability calculations? B. Review equipment inventory, inspection status and operational readiness and compare
A. Move heavy cargo higher to free lower deck space without recalculation. the findings with the applicable criteria.
B. Correct a list by moving weight without checking stability impact. C. Enter an enclosed space based only on a prior atmosphere test.
C. Recalculate the relevant stability condition before accepting the loading or D. Continue the transfer until the planned quantity is complete.
ballast change. Correct Answer: B
D. Accept a loading condition based only on even draft readings. Explanation: This is the most appropriate option because it connects the observed
Correct Answer: C condition to the governing requirement and leaves a record of why the decision was made.
Explanation: A defensible professional decision should be based on current evidence and
16. A machinery temperature rises above its normal operating trend; a machinery
applicable criteria. The other choices rely on assumption, remove safeguards, or change
conditions before the cause is understood.
temperature rises 20 C above its normal trend. Which action best distinguishes
the underlying cause from a symptom in Fire prevention, firefighting, damage
7. Cargo loading changes the vessel's vertical center of gravity. A change control and abandonment procedures?
affecting Ship stability is being considered. How should it be handled? A. Reset a protective trip repeatedly without finding the cause.
A. Accept a loading condition based only on even draft readings. B. Disable an alarm that is interrupting operations.
B. Account for free-surface and weight-shift effects when evaluating stability and C. Compare operating pressures/temperatures, equipment status and recent changes to
trim. isolate the fault safely, then confirm that the corrective action is effective before
C. Ignore slack-tank effects because total liquid weight is unchanged. closure.
D. Correct a list by moving weight without checking stability impact. D. Increase machinery load to see whether the abnormal indication clears.
Correct Answer: B Correct Answer: C
Explanation: This is the most appropriate option because it connects the observed Explanation: The correct choice follows a verify-act-confirm sequence. That is more
condition to the governing requirement and leaves a record of why the decision was made. reliable than bypassing controls or making multiple uncontrolled changes.
8. A slack tank creates additional free-surface effect; a navigation fix differs 17. A towing or deck operation is affected by changing weather. Which response is
by 0.8 nautical mile from another source. The abnormal condition directly affects most consistent with the professional or compliance requirements governing Fire
basic stability calculations. What is the most appropriate response? prevention?
A. Correct a list by moving weight without checking stability impact. A. Make an unverified ballast change solely to improve trim.
B. Recalculate the relevant stability condition before accepting the loading or B. Depart with required safety equipment inoperative because the voyage is short.
ballast change. C. Discharge a small contaminant amount rather than initiating the response procedure.
C. Move heavy cargo higher to free lower deck space without recalculation. D. Correct a required safety-equipment deficiency before sailing when the vessel
D. Ignore slack-tank effects because total liquid weight is unchanged. cannot legally or safely depart.
Correct Answer: B Correct Answer: D
Explanation: The correct choice follows a verify-act-confirm sequence. That is more Explanation: The strongest exam-style response is the one that controls immediate risk,
reliable than bypassing controls or making multiple uncontrolled changes. checks the relevant condition, and then acts within the defined requirements for Fire
prevention.
9. A deck load is shifted to a higher position. Which documentation approach best
supports traceability for Cargo operations, stowage, securing and hazards 18. An electrical protective device trips repeatedly. Which handoff practice best
relevant to vessel type? reduces error risk for damage control?
A. Ignore slack-tank effects because total liquid weight is unchanged. A. Disable an alarm that is interrupting operations.
B. Accept a loading condition based only on even draft readings. B. Record the observed condition, supporting evidence, decision and responsible
C. Record the observed condition, supporting evidence, decision and responsible follow-up; communicate any unresolved risk to the next responsible person.
follow-up; communicate any unresolved risk to the next responsible person. C. Reset a protective trip repeatedly without finding the cause.
D. Move heavy cargo higher to free lower deck space without recalculation. D. Make several plant changes simultaneously before recording the original condition.
Correct Answer: C Correct Answer: B
Explanation: The strongest exam-style response is the one that controls immediate risk, Explanation: The correct response protects the integrity of the process: establish the
checks the relevant condition, and then acts within the defined requirements for Cargo facts, apply the appropriate control, and verify the result before closure.
operations, stowage, securing and hazards relevant to vessel type.
1
,USCG General Subjects Exam Module Chief Engineer Uninspected Fishing Vessel
19. A pre-departure check identifies a safety-equipment deficiency. Which 28. A vessel approaches restricted visibility with traffic nearby; visibility
decision about abandonment procedures is best supported by the available falls below one nautical mile. The abnormal condition directly affects STCW
evidence? competence. What is the most appropriate response?
A. Discharge a small contaminant amount rather than initiating the response procedure. A. Silence a machinery alarm and continue at the same load without investigation.
B. Make an unverified ballast change solely to improve trim. B. Use a single navigation source after another source shows a material discrepancy.
C. Correct a required safety-equipment deficiency before sailing when the vessel C. Assume constant bearing is harmless when range is decreasing.
cannot legally or safely depart. D. Use all available means to assess collision risk and take early, substantial action
D. Depart with required safety equipment inoperative because the voyage is short. consistent with the applicable navigation rules.
Correct Answer: C Correct Answer: D
Explanation: This approach preserves control of the situation while producing evidence Explanation: This answer uses verified evidence before action, which reduces the chance
that can confirm whether the action actually corrected the issue involving abandonment of masking the real problem and supports a traceable decision about STCW competence.
procedures.
29. Another vessel remains on nearly constant bearing while range decreases.
20. A pump loses discharge pressure while demand remains constant; a navigation Which documentation approach best supports traceability for professional
fix differs by 0.8 nautical mile from another source. Which review step adds the watchkeeping standards?
most value before closing work involving Marine engineering or electrical systems A. Make a series of small course changes that are difficult to detect.
applicable to the named officer/module? B. Rely on one electronic source when independent information conflicts.
A. Reset a protective trip repeatedly without finding the cause. C. Continue on an uncertain position until the next scheduled fix.
B. Disable an alarm that is interrupting operations. D. Record the observed condition, supporting evidence, decision and responsible
C. Increase machinery load to see whether the abnormal indication clears. follow-up; communicate any unresolved risk to the next responsible person.
D. Compare operating pressures/temperatures, equipment status and recent changes to Correct Answer: D
isolate the fault safely, then confirm that the corrective action is effective before Explanation: The selected action best supports safe, compliant, and technically sound
closure. performance because it addresses professional watchkeeping standards using observable
Correct Answer: D evidence rather than convenience.
Explanation: This answer uses verified evidence before action, which reduces the chance
30. A vessel approaches restricted visibility with traffic nearby. Which action
of masking the real problem and supports a traceable decision about Marine engineering
or electrical systems applicable to the named officer/module. is most likely to prevent recurrence of a problem involving Communications, GMDSS
awareness and distress/urgency procedures?
21. A machinery temperature rises above its normal operating trend. With respect A. Verify the loading and stability data before accepting a cargo or ballast change,
to Marine engineering, what is the best FIRST action? then confirm that the corrective action is effective before closure.
A. Increase machinery load to see whether the abnormal indication clears. B. Assume constant bearing is harmless when range is decreasing.
B. Make several plant changes simultaneously before recording the original condition. C. Silence a machinery alarm and continue at the same load without investigation.
C. Compare operating pressures/temperatures, equipment status and recent changes to D. Use a single navigation source after another source shows a material discrepancy.
isolate the fault safely. Correct Answer: A
D. Disable an alarm that is interrupting operations. Explanation: A defensible professional decision should be based on current evidence and
Correct Answer: C applicable criteria. The other choices rely on assumption, remove safeguards, or change
Explanation: The selected action best supports safe, compliant, and technically sound conditions before the cause is understood.
performance because it addresses Marine engineering using observable evidence rather
than convenience. 31. A pre-departure check identifies a safety-equipment deficiency. Which
sequence is most appropriate when carrying out GMDSS awareness?
22. An engineering watch observes an abnormal temperature or pressure. Which A. Discharge a small contaminant amount rather than initiating the response procedure.
evidence is most important when evaluating electrical systems applicable to the B. Verify the loading and stability data before accepting a cargo or ballast change,
named officer/module? then verify the resulting state before moving to the next step.
A. Review machinery pressures, temperatures, alarms and operating limits and compare C. Make an unverified ballast change solely to improve trim.
the findings with the applicable criteria. D. Depart with required safety equipment inoperative because the voyage is short.
B. Silence a machinery alarm and continue at the same load without investigation. Correct Answer: B
C. Use a single navigation source after another source shows a material discrepancy. Explanation: This is the most appropriate option because it connects the observed
D. Assume constant bearing is harmless when range is decreasing. condition to the governing requirement and leaves a record of why the decision was made.
Correct Answer: A
Explanation: A defensible professional decision should be based on current evidence and
32. A deck watch detects a change in bearing to another vessel; a target bearing
applicable criteria. The other choices rely on assumption, remove safeguards, or change remains nearly constant as range decreases. Which choice demonstrates the
conditions before the cause is understood. strongest control of distress/urgency procedures?
A. Use all available means to assess collision risk and take early, substantial action
23. A spill occurs during machinery or cargo operations. Which response best consistent with the applicable navigation rules.
controls the primary risk associated with Pollution prevention, MARPOL principles B. Use a single navigation source after another source shows a material discrepancy.
and environmental protection? C. Assume constant bearing is harmless when range is decreasing.
A. Wash a small spill overboard rather than initiating the response process. D. Silence a machinery alarm and continue at the same load without investigation.
B. Enter an enclosed space based only on a prior atmosphere test. Correct Answer: A
C. Correct a required safety-equipment deficiency and verify readiness before Explanation: The correct choice follows a verify-act-confirm sequence. That is more
proceeding. reliable than bypassing controls or making multiple uncontrolled changes.
D. Continue the transfer until the planned quantity is complete.
Correct Answer: C 33. A navigation fix does not agree with another available source. What is
Explanation: This is the most appropriate option because it connects the observed required before accepting the result related to Chartwork, publications, voyage
condition to the governing requirement and leaves a record of why the decision was made. planning and position fixing?
A. Depart with required safety equipment inoperative because the voyage is short.
24. A pollution-prevention barrier is found compromised during transfer; B. Review required safety equipment and readiness before departure and compare the
visibility falls below one nautical mile. Before proceeding with work involving findings with the applicable criteria.
Pollution prevention, what should be verified? C. Discharge a small contaminant amount rather than initiating the response procedure.
A. Continue the transfer until the planned quantity is complete. D. Make an unverified ballast change solely to improve trim.
B. Review source/quantity of release, containment condition, notifications and Correct Answer: B
response equipment and compare the findings with the applicable criteria. Explanation: The strongest exam-style response is the one that controls immediate risk,
C. Depart with required safety equipment unavailable because conditions are calm. checks the relevant condition, and then acts within the defined requirements for
D. Enter an enclosed space based only on a prior atmosphere test. Chartwork, publications, voyage planning and position fixing.
Correct Answer: B
Explanation: The correct choice follows a verify-act-confirm sequence. That is more
34. A stability calculation is required after cargo or ballast changes. Under
reliable than bypassing controls or making multiple uncontrolled changes. these conditions, when should the issue involving voyage planning be escalated?
A. Silence a machinery alarm and continue at the same load without investigation.
25. A towing or deck operation is affected by changing weather. Which B. Use all available means to assess collision risk and take early, substantial action
troubleshooting approach is most appropriate for MARPOL principles? consistent with the applicable navigation rules.
A. Discharge a small contaminant amount rather than initiating the response procedure. C. Use a single navigation source after another source shows a material discrepancy.
B. Correct a required safety-equipment deficiency before sailing when the vessel D. Assume constant bearing is harmless when range is decreasing.
cannot legally or safely depart. Correct Answer: B
C. Make an unverified ballast change solely to improve trim. Explanation: The correct response protects the integrity of the process: establish the
D. Depart with required safety equipment inoperative because the voyage is short. facts, apply the appropriate control, and verify the result before closure.
Correct Answer: B
35. A towing or deck operation is affected by changing weather. Which comparison
Explanation: The strongest exam-style response is the one that controls immediate risk,
checks the relevant condition, and then acts within the defined requirements for MARPOL is most useful for interpreting position fixing?
principles. A. Make an unverified ballast change solely to improve trim.
B. Review stability data, loading condition and free-surface effects and compare the
26. A spill occurs during machinery or cargo operations. Which action best findings with the applicable criteria.
supports a defensible decision about environmental protection? C. Depart with required safety equipment inoperative because the voyage is short.
A. Stop or control the operation, protect personnel and follow the required emergency D. Discharge a small contaminant amount rather than initiating the response procedure.
or pollution-response procedure. Correct Answer: B
B. Depart with required safety equipment unavailable because conditions are calm. Explanation: This approach preserves control of the situation while producing evidence
C. Continue the transfer until the planned quantity is complete. that can confirm whether the action actually corrected the issue involving position
D. Wash a small spill overboard rather than initiating the response process. fixing.
Correct Answer: A
36. A position fix disagrees with the expected track; the vessel draft increases
Explanation: The correct response protects the integrity of the process: establish the
facts, apply the appropriate control, and verify the result before closure. after cargo loading. Which action best distinguishes the underlying cause from a
symptom in Meteorology, tides, currents and environmental conditions affecting
27. Visibility falls and several targets appear on radar. A change affecting STCW safe navigation?
competence, drills, records and professional watchkeeping standards is being A. Assume there is no risk because the other vessel is visually small.
considered. How should it be handled? B. Continue on an uncertain position until the next scheduled fix.
A. Rely on one electronic source when independent information conflicts. C. Make a series of small course changes that are difficult to detect.
B. Make a series of small course changes that are difficult to detect. D. Cross-check position, traffic and navigation sources before altering the passage
C. Cross-check position, traffic and navigation sources before altering the passage plan, then confirm that the corrective action is effective before closure.
plan. Correct Answer: D
D. Assume there is no risk because the other vessel is visually small. Explanation: This answer uses verified evidence before action, which reduces the chance
Correct Answer: C of masking the real problem and supports a traceable decision about Meteorology, tides,
Explanation: This approach preserves control of the situation while producing evidence currents and environmental conditions affecting safe navigation.
that can confirm whether the action actually corrected the issue involving STCW
competence, drills, records and professional watchkeeping standards.
2
, USCG General Subjects Exam Module Chief Engineer Uninspected Fishing Vessel
37. The vessel approaches a traffic or pilotage constraint. Which response is 46. A navigation fix does not agree with another available source. Which action
most consistent with the professional or compliance requirements governing best supports a defensible decision about lifesaving appliances?
environmental conditions affecting safe navigation? A. Silence a machinery alarm and continue at the same load without investigation.
A. Make a series of small course changes that are difficult to detect. B. Use a single navigation source after another source shows a material discrepancy.
B. Rely on one electronic source when independent information conflicts. C. Assume constant bearing is harmless when range is decreasing.
C. Continue on an uncertain position until the next scheduled fix. D. Use all available means to assess collision risk and take early, substantial action
D. Cross-check position, traffic and navigation sources before altering the passage consistent with the applicable navigation rules.
plan. Correct Answer: D
Correct Answer: D Explanation: A defensible professional decision should be based on current evidence and
Explanation: The selected action best supports safe, compliant, and technically sound applicable criteria. The other choices rely on assumption, remove safeguards, or change
performance because it addresses environmental conditions affecting safe navigation conditions before the cause is understood.
using observable evidence rather than convenience.
47. An enclosed-space task is proposed without a completed entry check. A change
38. A slack tank creates additional free-surface effect. Which handoff practice affecting emergency procedures is being considered. How should it be handled?
best reduces error risk for Ship stability, trim, loading and basic stability A. Wash a small spill overboard rather than initiating the response process.
calculations? B. Correct a required safety-equipment deficiency and verify readiness before
A. Move heavy cargo higher to free lower deck space without recalculation. proceeding.
B. Correct a list by moving weight without checking stability impact. C. Enter an enclosed space based only on a prior atmosphere test.
C. Accept a loading condition based only on even draft readings. D. Continue the transfer until the planned quantity is complete.
D. Record the observed condition, supporting evidence, decision and responsible Correct Answer: B
follow-up; communicate any unresolved risk to the next responsible person. Explanation: This is the most appropriate option because it connects the observed
Correct Answer: D condition to the governing requirement and leaves a record of why the decision was made.
Explanation: A defensible professional decision should be based on current evidence and
48. A machinery temperature rises above its normal operating trend; a navigation
applicable criteria. The other choices rely on assumption, remove safeguards, or change
conditions before the cause is understood.
fix differs by 0.8 nautical mile from another source. The abnormal condition
directly affects Fire prevention, firefighting, damage control and abandonment
39. Cargo loading changes the vessel's vertical center of gravity. Which decision procedures. What is the most appropriate response?
about Ship stability is best supported by the available evidence? A. Reset a protective trip repeatedly without finding the cause.
A. Account for free-surface and weight-shift effects when evaluating stability and B. Disable an alarm that is interrupting operations.
trim. C. Increase machinery load to see whether the abnormal indication clears.
B. Accept a loading condition based only on even draft readings. D. Protect the plant, verify the indication and diagnose the affected system before
C. Ignore slack-tank effects because total liquid weight is unchanged. resetting or increasing load.
D. Correct a list by moving weight without checking stability impact. Correct Answer: D
Correct Answer: A Explanation: The correct choice follows a verify-act-confirm sequence. That is more
Explanation: This is the most appropriate option because it connects the observed reliable than bypassing controls or making multiple uncontrolled changes.
condition to the governing requirement and leaves a record of why the decision was made.
49. A pollution-prevention control is compromised during operations. Which
40. A slack tank creates additional free-surface effect; a target bearing remains documentation approach best supports traceability for Fire prevention?
nearly constant as range decreases. Which review step adds the most value before A. Discharge a small contaminant amount rather than initiating the response procedure.
closing work involving basic stability calculations? B. Make an unverified ballast change solely to improve trim.
A. Correct a list by moving weight without checking stability impact. C. Depart with required safety equipment inoperative because the voyage is short.
B. Move heavy cargo higher to free lower deck space without recalculation. D. Record the observed condition, supporting evidence, decision and responsible
C. Account for free-surface and weight-shift effects when evaluating stability and follow-up; communicate any unresolved risk to the next responsible person.
trim, then confirm that the corrective action is effective before closure. Correct Answer: D
D. Ignore slack-tank effects because total liquid weight is unchanged. Explanation: The strongest exam-style response is the one that controls immediate risk,
Correct Answer: C checks the relevant condition, and then acts within the defined requirements for Fire
Explanation: The correct choice follows a verify-act-confirm sequence. That is more prevention.
reliable than bypassing controls or making multiple uncontrolled changes.
50. An electrical protective device trips repeatedly. Which action is most likely
41. A deck load is shifted to a higher position. With respect to Cargo to prevent recurrence of a problem involving damage control?
operations, stowage, securing and hazards relevant to vessel type, what is the A. Disable an alarm that is interrupting operations.
best FIRST action? B. Reset a protective trip repeatedly without finding the cause.
A. Account for free-surface and weight-shift effects when evaluating stability and C. Make several plant changes simultaneously before recording the original condition.
trim. D. Compare operating pressures/temperatures, equipment status and recent changes to
B. Ignore slack-tank effects because total liquid weight is unchanged. isolate the fault safely, then confirm that the corrective action is effective before
C. Accept a loading condition based only on even draft readings. closure.
D. Move heavy cargo higher to free lower deck space without recalculation. Correct Answer: D
Correct Answer: A Explanation: The correct response protects the integrity of the process: establish the
Explanation: The strongest exam-style response is the one that controls immediate risk, facts, apply the appropriate control, and verify the result before closure.
checks the relevant condition, and then acts within the defined requirements for Cargo
51. An alarm occurs during machinery operation. Which sequence is most
operations, stowage, securing and hazards relevant to vessel type.
appropriate when carrying out abandonment procedures?
42. Ballast is proposed to correct a list. Which evidence is most important when A. Depart with required safety equipment inoperative because the voyage is short.
evaluating Cargo operations? B. Correct a required safety-equipment deficiency before sailing when the vessel
A. Move heavy cargo higher to free lower deck space without recalculation. cannot legally or safely depart, then verify the resulting state before moving to the
B. Correct a list by moving weight without checking stability impact. next step.
C. Accept a loading condition based only on even draft readings. C. Discharge a small contaminant amount rather than initiating the response procedure.
D. Review displacement, weight location, GM/stability data and tank condition and D. Make an unverified ballast change solely to improve trim.
compare the findings with the applicable criteria. Correct Answer: B
Correct Answer: D Explanation: This approach preserves control of the situation while producing evidence
Explanation: The correct response protects the integrity of the process: establish the that can confirm whether the action actually corrected the issue involving abandonment
facts, apply the appropriate control, and verify the result before closure. procedures.
43. A vessel approaches restricted visibility with traffic nearby. Which response 52. A pump loses discharge pressure while demand remains constant; a target
best controls the primary risk associated with hazards relevant to vessel type? bearing remains nearly constant as range decreases. Which choice demonstrates the
A. Discharge a small contaminant amount rather than initiating the response procedure. strongest control of Marine engineering or electrical systems applicable to the
B. Make an unverified ballast change solely to improve trim. named officer/module?
C. Depart with required safety equipment inoperative because the voyage is short. A. Reset a protective trip repeatedly without finding the cause.
D. Correct a required safety-equipment deficiency before sailing when the vessel B. Disable an alarm that is interrupting operations.
cannot legally or safely depart. C. Increase machinery load to see whether the abnormal indication clears.
Correct Answer: D D. Protect the plant, verify the indication and diagnose the affected system before
Explanation: This approach preserves control of the situation while producing evidence resetting or increasing load.
that can confirm whether the action actually corrected the issue involving hazards Correct Answer: D
relevant to vessel type. Explanation: This answer uses verified evidence before action, which reduces the chance
of masking the real problem and supports a traceable decision about Marine engineering
44. An enclosed-space task is proposed without a completed entry check; or electrical systems applicable to the named officer/module.
visibility falls below one nautical mile. Before proceeding with work involving
Marine safety systems, lifesaving appliances and emergency procedures, what 53. A machinery temperature rises above its normal operating trend. What is
should be verified? required before accepting the result related to Marine engineering?
A. Continue the transfer until the planned quantity is complete. A. Increase machinery load to see whether the abnormal indication clears.
B. Depart with required safety equipment unavailable because conditions are calm. B. Make several plant changes simultaneously before recording the original condition.
C. Review source/quantity of release, containment condition, notifications and C. Review protective-device indication, circuit condition and recent configuration
response equipment and compare the findings with the applicable criteria. change and compare the findings with the applicable criteria.
D. Enter an enclosed space based only on a prior atmosphere test. D. Disable an alarm that is interrupting operations.
Correct Answer: C Correct Answer: C
Explanation: This answer uses verified evidence before action, which reduces the chance Explanation: The selected action best supports safe, compliant, and technically sound
of masking the real problem and supports a traceable decision about Marine safety performance because it addresses Marine engineering using observable evidence rather
systems, lifesaving appliances and emergency procedures. than convenience.
45. Required lifesaving equipment is not ready before departure. Which 54. A vessel must plan a passage through constrained waters. Under these
troubleshooting approach is most appropriate for Marine safety systems? conditions, when should the issue involving electrical systems applicable to the
A. Enter an enclosed space based only on a prior atmosphere test. named officer/module be escalated?
B. Wash a small spill overboard rather than initiating the response process. A. Assume constant bearing is harmless when range is decreasing.
C. Correct a required safety-equipment deficiency and verify readiness before B. Silence a machinery alarm and continue at the same load without investigation.
proceeding. C. Use a single navigation source after another source shows a material discrepancy.
D. Depart with required safety equipment unavailable because conditions are calm. D. Use all available means to assess collision risk and take early, substantial action
Correct Answer: C consistent with the applicable navigation rules.
Explanation: The selected action best supports safe, compliant, and technically sound Correct Answer: D
performance because it addresses Marine safety systems using observable evidence rather Explanation: A defensible professional decision should be based on current evidence and
than convenience. applicable criteria. The other choices rely on assumption, remove safeguards, or change
conditions before the cause is understood.
3
