USCG Mate Uninspected Fishing Vessel Exam |
Practice Exam Questions & Answers
ID14111
,USCG Mate Uninspected Fishing Vessel Exam | Practice Exam Questions & Answers
1. A position fix disagrees with the expected track. With respect to Meteorology, 10. Required lifesaving equipment is not ready before departure. Which action is
tides, currents and environmental conditions affecting safe navigation, what is most likely to prevent recurrence of a problem involving Marine safety systems?
the best FIRST action? A. Correct a required safety-equipment deficiency and verify readiness before
A. Use all available means to determine collision risk and take early, substantial proceeding, then confirm that the corrective action is effective before closure.
action consistent with the applicable navigation rules. B. Enter an enclosed space based only on a prior atmosphere test.
B. Assume there is no risk because the other vessel is visually small. C. Wash a small spill overboard rather than initiating the response process.
C. Continue on an uncertain position until the next scheduled fix. D. Depart with required safety equipment unavailable because conditions are calm.
D. Make a series of small course changes that are difficult to detect. Correct Answer: A
Correct Answer: A Explanation: The strongest exam-style response is the one that controls immediate risk,
Explanation: The correct choice follows a verify-act-confirm sequence. That is more checks the relevant condition, and then acts within the defined requirements for Marine
reliable than bypassing controls or making multiple uncontrolled changes. safety systems.
2. The vessel approaches a traffic or pilotage constraint. Which evidence is most 11. A pre-departure check identifies a safety-equipment deficiency. Which
important when evaluating environmental conditions affecting safe navigation? sequence is most appropriate when carrying out lifesaving appliances?
A. Make a series of small course changes that are difficult to detect. A. Assume constant bearing is harmless when range is decreasing.
B. Rely on one electronic source when independent information conflicts. B. Silence a machinery alarm and continue at the same load without investigation.
C. Continue on an uncertain position until the next scheduled fix. C. Cross-check navigation sources and resolve a position discrepancy before relying on
D. Review position sources, charted hazards, depth/under-keel clearance and traffic the fix, then verify the resulting state before moving to the next step.
and compare the findings with the applicable criteria. D. Use a single navigation source after another source shows a material discrepancy.
Correct Answer: D Correct Answer: C
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.
environmental conditions affecting safe navigation.
12. An enclosed-space task is proposed without a completed entry check; the
3. A slack tank creates additional free-surface effect. Which response best vessel draft increases after cargo loading. Which choice demonstrates the
controls the primary risk associated with Ship stability, trim, loading and basic strongest control of emergency procedures?
stability calculations? A. Correct a required safety-equipment deficiency and verify readiness before
A. Move heavy cargo higher to free lower deck space without recalculation. proceeding.
B. Recalculate the relevant stability condition before accepting the loading or B. Wash a small spill overboard rather than initiating the response process.
ballast change. C. Enter an enclosed space based only on a prior atmosphere test.
C. Correct a list by moving weight without checking stability impact. D. Continue the transfer until the planned quantity is complete.
D. Accept a loading condition based only on even draft readings. Correct Answer: A
Correct Answer: B 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 emergency
facts, apply the appropriate control, and verify the result before closure. procedures.
4. Cargo loading changes the vessel's vertical center of gravity; a machinery 13. A machinery temperature rises above its normal operating trend. What is
temperature rises 20 C above its normal trend. Before proceeding with work required before accepting the result related to Fire prevention, firefighting,
involving Ship stability, what should be verified? damage control and abandonment procedures?
A. Accept a loading condition based only on even draft readings. A. Review pressure, temperature, lubrication, electrical load, alarm history and
B. Ignore slack-tank effects because total liquid weight is unchanged. equipment status and compare the findings with the applicable criteria.
C. Review loading manual limits, free-surface moment and resulting draft/trim and B. Reset a protective trip repeatedly without finding the cause.
compare the findings with the applicable criteria. C. Disable an alarm that is interrupting operations.
D. Correct a list by moving weight without checking stability impact. D. Increase machinery load to see whether the abnormal indication clears.
Correct Answer: C Correct Answer: A
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 Ship of masking the real problem and supports a traceable decision about Fire prevention,
stability. firefighting, damage control and abandonment procedures.
5. A slack tank creates additional free-surface effect. Which troubleshooting 14. A vessel must plan a passage through constrained waters. Under these
approach is most appropriate for basic stability calculations? conditions, when should the issue involving Fire prevention be escalated?
A. Correct a list by moving weight without checking stability impact. A. Depart with required safety equipment inoperative because the voyage is short.
B. Move heavy cargo higher to free lower deck space without recalculation. B. Discharge a small contaminant amount rather than initiating the response procedure.
C. Recalculate the relevant stability condition before accepting the loading or C. Contain and report a pollution risk using the required onboard response and
ballast change. documentation process.
D. Ignore slack-tank effects because total liquid weight is unchanged. D. Make an unverified ballast change solely to improve trim.
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 basic stability performance because it addresses Fire prevention using observable evidence rather than
calculations. convenience.
6. A deck load is shifted to a higher position. Which action best supports a 15. An electrical protective device trips repeatedly. Which comparison is most
defensible decision about Cargo operations, stowage, securing and hazards useful for interpreting damage control?
relevant to vessel type? A. Disable an alarm that is interrupting operations.
A. Ignore slack-tank effects because total liquid weight is unchanged. B. Reset a protective trip repeatedly without finding the cause.
B. 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. Review pressure, temperature, lubrication, electrical load, alarm history and
C. Accept a loading condition based only on even draft readings. equipment status and compare the findings with the applicable criteria.
D. Move heavy cargo higher to free lower deck space without recalculation. Correct Answer: D
Correct Answer: B 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 Cargo operations, stowage, securing and hazards conditions before the cause is understood.
relevant to vessel type using observable evidence rather than convenience.
16. A stability calculation is required after cargo or ballast changes; a
7. Ballast is proposed to correct a list. A change affecting Cargo operations is machinery temperature rises 20 C above its normal trend. Which action best
being considered. How should it be handled? distinguishes the underlying cause from a symptom in abandonment procedures?
A. Move heavy cargo higher to free lower deck space without recalculation. A. Make an unverified ballast change solely to improve trim.
B. Correct a list by moving weight without checking stability impact. B. Depart with required safety equipment inoperative because the voyage is short.
C. Accept a loading condition based only on even draft readings. C. Discharge a small contaminant amount rather than initiating the response procedure.
D. Recalculate the relevant stability condition before accepting the loading or D. Verify the loading and stability data before accepting a cargo or ballast change,
ballast change. then confirm that the corrective action is effective before closure.
Correct Answer: D Correct Answer: D
Explanation: A defensible professional decision should be based on current evidence and Explanation: This is the most appropriate option because it connects the observed
applicable criteria. The other choices rely on assumption, remove safeguards, or change condition to the governing requirement and leaves a record of why the decision was made.
conditions before the cause is understood.
17. A pump loses discharge pressure while demand remains constant. Which response
8. An alarm occurs during machinery operation; a target bearing remains nearly is most consistent with the professional or compliance requirements governing
constant as range decreases. The abnormal condition directly affects hazards Marine engineering or electrical systems applicable to the named officer/module?
relevant to vessel type. What is the most appropriate response? A. Reset a protective trip repeatedly without finding the cause.
A. Depart with required safety equipment inoperative because the voyage is short. B. Disable an alarm that is interrupting operations.
B. Contain and report a pollution risk using the required onboard response and C. Protect the plant, verify the indication and diagnose the affected system before
documentation process. resetting or increasing load.
C. Discharge a small contaminant amount rather than initiating the response procedure. D. Increase machinery load to see whether the abnormal indication clears.
D. Make an unverified ballast change solely to improve trim. Correct Answer: C
Correct Answer: B 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.
18. A machinery temperature rises above its normal operating trend. Which handoff
9. An enclosed-space task is proposed without a completed entry check. Which practice best reduces error risk for Marine engineering?
documentation approach best supports traceability for Marine safety systems, A. Increase machinery load to see whether the abnormal indication clears.
lifesaving appliances and emergency procedures? B. Record the observed condition, supporting evidence, decision and responsible
A. 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. Make several plant changes simultaneously before recording the original condition.
B. Continue the transfer until the planned quantity is complete. D. Disable an alarm that is interrupting operations.
C. Depart with required safety equipment unavailable because conditions are calm. Correct Answer: B
D. Enter an enclosed space based only on a prior atmosphere test. Explanation: The strongest exam-style response is the one that controls immediate risk,
Correct Answer: A checks the relevant condition, and then acts within the defined requirements for Marine
Explanation: The correct choice follows a verify-act-confirm sequence. That is more engineering.
reliable than bypassing controls or making multiple uncontrolled changes.
1
,USCG Mate Uninspected Fishing Vessel Exam | Practice Exam Questions & Answers
19. A deck watch detects a change in bearing to another vessel. Which decision 28. A stability calculation is required after cargo or ballast changes; a
about electrical systems applicable to the named officer/module is best supported machinery temperature rises 20 C above its normal trend. The abnormal condition
by the available evidence? directly affects GMDSS awareness. What is the most appropriate response?
A. Respond to an abnormal machinery indication by protecting the plant, confirming the A. Make an unverified ballast change solely to improve trim.
indication and following the operating procedure. B. Depart with required safety equipment inoperative because the voyage is short.
B. Use a single navigation source after another source shows a material discrepancy. C. Contain and report a pollution risk using the required onboard response and
C. Assume constant bearing is harmless when range is decreasing. documentation process.
D. Silence a machinery alarm and continue at the same load without investigation. D. Discharge a small contaminant amount rather than initiating the response procedure.
Correct Answer: A Correct Answer: C
Explanation: The correct response protects the integrity of the process: establish the Explanation: This approach preserves control of the situation while producing evidence
facts, apply the appropriate control, and verify the result before closure. that can confirm whether the action actually corrected the issue involving GMDSS
awareness.
20. A spill occurs during machinery or cargo operations; the vessel draft
increases after cargo loading. Which review step adds the most value before 29. A pollution-prevention control is compromised during operations. Which
closing work involving Pollution prevention, MARPOL principles and environmental documentation approach best supports traceability for distress/urgency
protection? procedures?
A. Correct a required safety-equipment deficiency and verify readiness before A. Assume constant bearing is harmless when range is decreasing.
proceeding, then confirm that the corrective action is effective before closure. B. Silence a machinery alarm and continue at the same load without investigation.
B. Wash a small spill overboard rather than initiating the response process. C. Record the observed condition, supporting evidence, decision and responsible
C. Enter an enclosed space based only on a prior atmosphere test. follow-up; communicate any unresolved risk to the next responsible person.
D. Continue the transfer until the planned quantity is complete. D. Use a single navigation source after another source shows a material discrepancy.
Correct Answer: A Correct Answer: C
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 Pollution of masking the real problem and supports a traceable decision about distress/urgency
prevention, MARPOL principles and environmental protection. procedures.
21. A pollution-prevention barrier is found compromised during transfer. With 30. Visibility falls and several targets appear on radar. Which action is most
respect to Pollution prevention, what is the best FIRST action? likely to prevent recurrence of a problem involving Collision avoidance,
A. Stop or control the operation, protect personnel and follow the required emergency maneuvering, pilotage and restricted-water operations?
or pollution-response procedure. A. Make a series of small course changes that are difficult to detect.
B. Continue the transfer until the planned quantity is complete. B. Cross-check position, traffic and navigation sources before altering the passage
C. Depart with required safety equipment unavailable because conditions are calm. plan, then confirm that the corrective action is effective before closure.
D. Enter an enclosed space based only on a prior atmosphere test. C. Rely on one electronic source when independent information conflicts.
Correct Answer: A D. Continue on an uncertain position until the next scheduled fix.
Explanation: This answer uses verified evidence before action, which reduces the chance Correct Answer: B
of masking the real problem and supports a traceable decision about Pollution Explanation: The selected action best supports safe, compliant, and technically sound
prevention. performance because it addresses Collision avoidance, maneuvering, pilotage and
restricted-water operations using observable evidence rather than convenience.
22. A vessel must plan a passage through constrained waters. Which evidence is
most important when evaluating MARPOL principles? 31. Another vessel remains on nearly constant bearing while range decreases.
A. Make an unverified ballast change solely to improve trim. Which sequence is most appropriate when carrying out Collision avoidance?
B. Depart with required safety equipment inoperative because the voyage is short. A. Continue on an uncertain position until the next scheduled fix.
C. Review stability data, loading condition and free-surface effects and compare the B. Assume there is no risk because the other vessel is visually small.
findings with the applicable criteria. C. Use all available means to determine collision risk and take early, substantial
D. Discharge a small contaminant amount rather than initiating the response procedure. action consistent with the applicable navigation rules, then verify the resulting
Correct Answer: C state before moving to the next step.
Explanation: The selected action best supports safe, compliant, and technically sound D. Rely on one electronic source when independent information conflicts.
performance because it addresses MARPOL principles using observable evidence rather than Correct Answer: C
convenience. Explanation: A defensible professional decision should be based on current evidence and
applicable criteria. The other choices rely on assumption, remove safeguards, or change
23. A spill occurs during machinery or cargo operations. Which response best conditions before the cause is understood.
controls the primary risk associated with environmental protection?
A. Depart with required safety equipment unavailable because conditions are calm. 32. A vessel approaches restricted visibility with traffic nearby; visibility
B. Stop or control the operation, protect personnel and follow the required emergency falls below one nautical mile. Which choice demonstrates the strongest control of
or pollution-response procedure. restricted-water operations?
C. Continue the transfer until the planned quantity is complete. A. Contain and report a pollution risk using the required onboard response and
D. Wash a small spill overboard rather than initiating the response process. documentation process.
Correct Answer: B B. Depart with required safety equipment inoperative because the voyage is short.
Explanation: A defensible professional decision should be based on current evidence and C. Discharge a small contaminant amount rather than initiating the response procedure.
applicable criteria. The other choices rely on assumption, remove safeguards, or change D. Make an unverified ballast change solely to improve trim.
conditions before the cause is understood. Correct Answer: A
Explanation: This is the most appropriate option because it connects the observed
24. Visibility falls and several targets appear on radar; a machinery temperature
condition to the governing requirement and leaves a record of why the decision was made.
rises 20 C above its normal trend. Before proceeding with work involving STCW
competence, drills, records and professional watchkeeping standards, what should 33. A position fix disagrees with the expected track. What is required before
be verified? accepting the result related to Meteorology, tides, currents and environmental
A. Rely on one electronic source when independent information conflicts. conditions affecting safe navigation?
B. Review position sources, charted hazards, depth/under-keel clearance and traffic A. Assume there is no risk because the other vessel is visually small.
and compare the findings with the applicable criteria. B. Continue on an uncertain position until the next scheduled fix.
C. Make a series of small course changes that are difficult to detect. C. Review bearing/range trend, own-ship course/speed, target aspect and applicable
D. Assume there is no risk because the other vessel is visually small. rule and compare the findings with the applicable criteria.
Correct Answer: B D. Make a series of small course changes that are difficult to detect.
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: The correct choice follows a verify-act-confirm sequence. That is more
reliable than bypassing controls or making multiple uncontrolled changes.
25. A navigation fix does not agree with another available source. Which
troubleshooting approach is most appropriate for STCW competence? 34. The vessel approaches a traffic or pilotage constraint. Under these
A. Use a single navigation source after another source shows a material discrepancy. conditions, when should the issue involving environmental conditions affecting
B. Assume constant bearing is harmless when range is decreasing. safe navigation be escalated?
C. 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.
D. Respond to an abnormal machinery indication by protecting the plant, confirming the B. Cross-check position, traffic and navigation sources before altering the passage
indication and following the operating procedure. plan.
Correct Answer: D C. Rely on one electronic source when independent information conflicts.
Explanation: The correct choice follows a verify-act-confirm sequence. That is more D. Continue on an uncertain position until the next scheduled fix.
reliable than bypassing controls or making multiple uncontrolled changes. Correct Answer: B
Explanation: The strongest exam-style response is the one that controls immediate risk,
26. Another vessel remains on nearly constant bearing while range decreases.
checks the relevant condition, and then acts within the defined requirements for
Which action best supports a defensible decision about professional watchkeeping environmental conditions affecting safe navigation.
standards?
A. Make a series of small course changes that are difficult to detect. 35. A slack tank creates additional free-surface effect. Which comparison is most
B. Rely on one electronic source when independent information conflicts. useful for interpreting Ship stability, trim, loading and basic stability
C. Continue on an uncertain position until the next scheduled fix. calculations?
D. Cross-check position, traffic and navigation sources before altering the passage A. Move heavy cargo higher to free lower deck space without recalculation.
plan. B. Correct a list by moving weight without checking stability impact.
Correct Answer: D C. Accept a loading condition based only on even draft readings.
Explanation: The strongest exam-style response is the one that controls immediate risk, D. Review displacement, weight location, GM/stability data and tank condition and
checks the relevant condition, and then acts within the defined requirements for compare the findings with the applicable criteria.
professional watchkeeping standards. Correct Answer: D
Explanation: The correct response protects the integrity of the process: establish the
27. A navigation fix does not agree with another available source. A change
facts, apply the appropriate control, and verify the result before closure.
affecting Communications, GMDSS awareness and distress/urgency procedures is
being considered. How should it be handled? 36. Cargo loading changes the vessel's vertical center of gravity; a navigation
A. Respond to an abnormal machinery indication by protecting the plant, confirming the fix differs by 0.8 nautical mile from another source. Which action best
indication and following the operating procedure. distinguishes the underlying cause from a symptom in Ship stability?
B. Silence a machinery alarm and continue at the same load without investigation. A. Accept a loading condition based only on even draft readings.
C. Use a single navigation source after another source shows a material discrepancy. B. Account for free-surface and weight-shift effects when evaluating stability and
D. Assume constant bearing is harmless when range is decreasing. trim, then confirm that the corrective action is effective before closure.
Correct Answer: A C. Ignore slack-tank effects because total liquid weight is unchanged.
Explanation: The correct response protects the integrity of the process: establish the D. Correct a list by moving weight without checking stability impact.
facts, apply the appropriate control, and verify the result before closure. Correct Answer: B
Explanation: This approach preserves control of the situation while producing evidence
that can confirm whether the action actually corrected the issue involving Ship
stability.
2
, USCG Mate Uninspected Fishing Vessel Exam | Practice Exam Questions & Answers
37. A slack tank creates additional free-surface effect. Which response is most 46. A towing or deck operation is affected by changing weather. Which action best
consistent with the professional or compliance requirements governing basic supports a defensible decision about Fire prevention?
stability calculations? A. Make an unverified ballast change solely to improve trim.
A. Correct a list by moving weight without checking stability impact. B. Contain and report a pollution risk using the required onboard response and
B. Move heavy cargo higher to free lower deck space without recalculation. documentation process.
C. Ignore slack-tank effects because total liquid weight is unchanged. C. Depart with required safety equipment inoperative because the voyage is short.
D. Recalculate the relevant stability condition before accepting the loading or D. Discharge a small contaminant amount rather than initiating the response procedure.
ballast change. Correct Answer: B
Correct Answer: D Explanation: The selected action best supports safe, compliant, and technically sound
Explanation: This answer uses verified evidence before action, which reduces the chance performance because it addresses Fire prevention using observable evidence rather than
of masking the real problem and supports a traceable decision about basic stability convenience.
calculations.
47. An electrical protective device trips repeatedly. A change affecting damage
38. A deck load is shifted to a higher position. Which handoff practice best control is being considered. How should it be handled?
reduces error risk for Cargo operations, stowage, securing and hazards relevant A. Disable an alarm that is interrupting operations.
to vessel type? B. Reset a protective trip repeatedly without finding the cause.
A. Ignore slack-tank effects because total liquid weight is unchanged. C. Protect the plant, verify the indication and diagnose the affected system before
B. Accept a loading condition based only on even draft readings. resetting or increasing load.
C. Move heavy cargo higher to free lower deck space without recalculation. D. Make several plant changes simultaneously before recording the original condition.
D. Record the observed condition, supporting evidence, decision and responsible Correct Answer: C
follow-up; communicate any unresolved risk to the next responsible person. Explanation: A defensible professional decision should be based on current evidence and
Correct Answer: D 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 Cargo operations, stowage, securing and hazards
48. A pre-departure check identifies a safety-equipment deficiency; a navigation
relevant to vessel type using observable evidence rather than convenience.
fix differs by 0.8 nautical mile from another source. The abnormal condition
39. Ballast is proposed to correct a list. Which decision about Cargo operations directly affects abandonment procedures. What is the most appropriate response?
is best supported by the available evidence? A. Discharge a small contaminant amount rather than initiating the response procedure.
A. Recalculate the relevant stability condition before accepting the loading or B. Contain and report a pollution risk using the required onboard response and
ballast change. documentation process.
B. Move heavy cargo higher to free lower deck space without recalculation. C. Make an unverified ballast change solely to improve trim.
C. Correct a list by moving weight without checking stability impact. D. Depart with required safety equipment inoperative because the voyage is short.
D. Accept a loading condition based only on even draft readings. Correct Answer: B
Correct Answer: A Explanation: This is the most appropriate option because it connects the observed
Explanation: A defensible professional decision should be based on current evidence and condition to the governing requirement and leaves a record of why the decision was made.
applicable criteria. The other choices rely on assumption, remove safeguards, or change
conditions before the cause is understood.
49. A pump loses discharge pressure while demand remains constant. Which
documentation approach best supports traceability for Marine engineering or
40. A navigation fix does not agree with another available source; the vessel electrical systems applicable to the named officer/module?
draft increases after cargo loading. Which review step adds the most value before A. Reset a protective trip repeatedly without finding the cause.
closing work involving hazards relevant to vessel type? B. Disable an alarm that is interrupting operations.
A. Verify the loading and stability data before accepting a cargo or ballast change, C. Increase machinery load to see whether the abnormal indication clears.
then confirm that the corrective action is effective before closure. D. Record the observed condition, supporting evidence, decision and responsible
B. Make an unverified ballast change solely to improve trim. follow-up; communicate any unresolved risk to the next responsible person.
C. Depart with required safety equipment inoperative because the voyage is short. Correct Answer: D
D. Discharge a small contaminant amount rather than initiating the response procedure. Explanation: The correct choice follows a verify-act-confirm sequence. That is more
Correct Answer: A reliable than bypassing controls or making multiple uncontrolled changes.
Explanation: This is the most appropriate option because it connects the observed
condition to the governing requirement and leaves a record of why the decision was made.
50. A machinery temperature rises above its normal operating trend. Which action
is most likely to prevent recurrence of a problem involving Marine engineering?
41. An enclosed-space task is proposed without a completed entry check. With A. Compare operating pressures/temperatures, equipment status and recent changes to
respect to Marine safety systems, lifesaving appliances and emergency procedures, isolate the fault safely, then confirm that the corrective action is effective before
what is the best FIRST action? closure.
A. Continue the transfer until the planned quantity is complete. B. Increase machinery load to see whether the abnormal indication clears.
B. Depart with required safety equipment unavailable because conditions are calm. C. Make several plant changes simultaneously before recording the original condition.
C. Stop or control the operation, protect personnel and follow the required emergency D. Disable an alarm that is interrupting operations.
or pollution-response procedure. Correct Answer: A
D. Enter an enclosed space based only on a prior atmosphere test. 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 Marine
Explanation: The correct choice follows a verify-act-confirm sequence. That is more engineering.
reliable than bypassing controls or making multiple uncontrolled changes.
51. An engineering watch observes an abnormal temperature or pressure. Which
42. Required lifesaving equipment is not ready before departure. Which evidence sequence is most appropriate when carrying out electrical systems applicable to
is most important when evaluating Marine safety systems? the named officer/module?
A. Enter an enclosed space based only on a prior atmosphere test. A. Silence a machinery alarm and continue at the same load without investigation.
B. Wash a small spill overboard rather than initiating the response process. B. Use a single navigation source after another source shows a material discrepancy.
C. Depart with required safety equipment unavailable because conditions are calm. C. Assume constant bearing is harmless when range is decreasing.
D. Review equipment inventory, inspection status and operational readiness and compare D. Respond to an abnormal machinery indication by protecting the plant, confirming the
the findings with the applicable criteria. indication and following the operating procedure, then verify the resulting state
Correct Answer: D before moving to the next step.
Explanation: The strongest exam-style response is the one that controls immediate risk, Correct Answer: D
checks the relevant condition, and then acts within the defined requirements for Marine Explanation: The correct response protects the integrity of the process: establish the
safety systems. facts, apply the appropriate control, and verify the result before closure.
43. An alarm occurs during machinery operation. Which response best controls the 52. A spill occurs during machinery or cargo operations; visibility falls below
primary risk associated with lifesaving appliances? one nautical mile. Which choice demonstrates the strongest control of Pollution
A. Respond to an abnormal machinery indication by protecting the plant, confirming the prevention, MARPOL principles and environmental protection?
indication and following the operating procedure. A. Wash a small spill overboard rather than initiating the response process.
B. Use a single navigation source after another source shows a material discrepancy. B. Correct a required safety-equipment deficiency and verify readiness before
C. Assume constant bearing is harmless when range is decreasing. proceeding.
D. Silence a machinery alarm and continue at the same load without investigation. C. Enter an enclosed space based only on a prior atmosphere test.
Correct Answer: A D. Continue the transfer until the planned quantity is complete.
Explanation: The correct response protects the integrity of the process: establish the Correct Answer: B
facts, apply the appropriate control, and verify the result before closure. Explanation: This approach preserves control of the situation while producing evidence
that can confirm whether the action actually corrected the issue involving Pollution
44. An enclosed-space task is proposed without a completed entry check; prevention, MARPOL principles and environmental protection.
visibility falls below one nautical mile. Before proceeding with work involving
emergency procedures, what should be verified? 53. A pollution-prevention barrier is found compromised during transfer. What is
A. Wash a small spill overboard rather than initiating the response process. required before accepting the result related to Pollution prevention?
B. Review equipment inventory, inspection status and operational readiness and compare A. Continue the transfer until the planned quantity is complete.
the findings with the applicable criteria. B. Depart with required safety equipment unavailable because conditions are calm.
C. Enter an enclosed space based only on a prior atmosphere test. C. Enter an enclosed space based only on a prior atmosphere test.
D. Continue the transfer until the planned quantity is complete. D. Review source/quantity of release, containment condition, notifications and
Correct Answer: B response equipment and compare the findings with the applicable criteria.
Explanation: This approach preserves control of the situation while producing evidence Correct Answer: D
that can confirm whether the action actually corrected the issue involving emergency Explanation: This answer uses verified evidence before action, which reduces the chance
procedures. of masking the real problem and supports a traceable decision about Pollution
prevention.
45. A machinery temperature rises above its normal operating trend. Which
troubleshooting approach is most appropriate for Fire prevention, firefighting, 54. A towing or deck operation is affected by changing weather. Under these
damage control and abandonment procedures? conditions, when should the issue involving MARPOL principles be escalated?
A. Reset a protective trip repeatedly without finding the cause. A. Discharge a small contaminant amount rather than initiating the response procedure.
B. Protect the plant, verify the indication and diagnose the affected system before B. Make an unverified ballast change solely to improve trim.
resetting or increasing load. C. Contain and report a pollution risk using the required onboard response and
C. Disable an alarm that is interrupting operations. documentation process.
D. Increase machinery load to see whether the abnormal indication clears. D. Depart with required safety equipment inoperative because the voyage is short.
Correct Answer: B 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 Fire prevention, performance because it addresses MARPOL principles using observable evidence rather than
firefighting, damage control and abandonment procedures. convenience.
3
Practice Exam Questions & Answers
ID14111
,USCG Mate Uninspected Fishing Vessel Exam | Practice Exam Questions & Answers
1. A position fix disagrees with the expected track. With respect to Meteorology, 10. Required lifesaving equipment is not ready before departure. Which action is
tides, currents and environmental conditions affecting safe navigation, what is most likely to prevent recurrence of a problem involving Marine safety systems?
the best FIRST action? A. Correct a required safety-equipment deficiency and verify readiness before
A. Use all available means to determine collision risk and take early, substantial proceeding, then confirm that the corrective action is effective before closure.
action consistent with the applicable navigation rules. B. Enter an enclosed space based only on a prior atmosphere test.
B. Assume there is no risk because the other vessel is visually small. C. Wash a small spill overboard rather than initiating the response process.
C. Continue on an uncertain position until the next scheduled fix. D. Depart with required safety equipment unavailable because conditions are calm.
D. Make a series of small course changes that are difficult to detect. Correct Answer: A
Correct Answer: A Explanation: The strongest exam-style response is the one that controls immediate risk,
Explanation: The correct choice follows a verify-act-confirm sequence. That is more checks the relevant condition, and then acts within the defined requirements for Marine
reliable than bypassing controls or making multiple uncontrolled changes. safety systems.
2. The vessel approaches a traffic or pilotage constraint. Which evidence is most 11. A pre-departure check identifies a safety-equipment deficiency. Which
important when evaluating environmental conditions affecting safe navigation? sequence is most appropriate when carrying out lifesaving appliances?
A. Make a series of small course changes that are difficult to detect. A. Assume constant bearing is harmless when range is decreasing.
B. Rely on one electronic source when independent information conflicts. B. Silence a machinery alarm and continue at the same load without investigation.
C. Continue on an uncertain position until the next scheduled fix. C. Cross-check navigation sources and resolve a position discrepancy before relying on
D. Review position sources, charted hazards, depth/under-keel clearance and traffic the fix, then verify the resulting state before moving to the next step.
and compare the findings with the applicable criteria. D. Use a single navigation source after another source shows a material discrepancy.
Correct Answer: D Correct Answer: C
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.
environmental conditions affecting safe navigation.
12. An enclosed-space task is proposed without a completed entry check; the
3. A slack tank creates additional free-surface effect. Which response best vessel draft increases after cargo loading. Which choice demonstrates the
controls the primary risk associated with Ship stability, trim, loading and basic strongest control of emergency procedures?
stability calculations? A. Correct a required safety-equipment deficiency and verify readiness before
A. Move heavy cargo higher to free lower deck space without recalculation. proceeding.
B. Recalculate the relevant stability condition before accepting the loading or B. Wash a small spill overboard rather than initiating the response process.
ballast change. C. Enter an enclosed space based only on a prior atmosphere test.
C. Correct a list by moving weight without checking stability impact. D. Continue the transfer until the planned quantity is complete.
D. Accept a loading condition based only on even draft readings. Correct Answer: A
Correct Answer: B 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 emergency
facts, apply the appropriate control, and verify the result before closure. procedures.
4. Cargo loading changes the vessel's vertical center of gravity; a machinery 13. A machinery temperature rises above its normal operating trend. What is
temperature rises 20 C above its normal trend. Before proceeding with work required before accepting the result related to Fire prevention, firefighting,
involving Ship stability, what should be verified? damage control and abandonment procedures?
A. Accept a loading condition based only on even draft readings. A. Review pressure, temperature, lubrication, electrical load, alarm history and
B. Ignore slack-tank effects because total liquid weight is unchanged. equipment status and compare the findings with the applicable criteria.
C. Review loading manual limits, free-surface moment and resulting draft/trim and B. Reset a protective trip repeatedly without finding the cause.
compare the findings with the applicable criteria. C. Disable an alarm that is interrupting operations.
D. Correct a list by moving weight without checking stability impact. D. Increase machinery load to see whether the abnormal indication clears.
Correct Answer: C Correct Answer: A
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 Ship of masking the real problem and supports a traceable decision about Fire prevention,
stability. firefighting, damage control and abandonment procedures.
5. A slack tank creates additional free-surface effect. Which troubleshooting 14. A vessel must plan a passage through constrained waters. Under these
approach is most appropriate for basic stability calculations? conditions, when should the issue involving Fire prevention be escalated?
A. Correct a list by moving weight without checking stability impact. A. Depart with required safety equipment inoperative because the voyage is short.
B. Move heavy cargo higher to free lower deck space without recalculation. B. Discharge a small contaminant amount rather than initiating the response procedure.
C. Recalculate the relevant stability condition before accepting the loading or C. Contain and report a pollution risk using the required onboard response and
ballast change. documentation process.
D. Ignore slack-tank effects because total liquid weight is unchanged. D. Make an unverified ballast change solely to improve trim.
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 basic stability performance because it addresses Fire prevention using observable evidence rather than
calculations. convenience.
6. A deck load is shifted to a higher position. Which action best supports a 15. An electrical protective device trips repeatedly. Which comparison is most
defensible decision about Cargo operations, stowage, securing and hazards useful for interpreting damage control?
relevant to vessel type? A. Disable an alarm that is interrupting operations.
A. Ignore slack-tank effects because total liquid weight is unchanged. B. Reset a protective trip repeatedly without finding the cause.
B. 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. Review pressure, temperature, lubrication, electrical load, alarm history and
C. Accept a loading condition based only on even draft readings. equipment status and compare the findings with the applicable criteria.
D. Move heavy cargo higher to free lower deck space without recalculation. Correct Answer: D
Correct Answer: B 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 Cargo operations, stowage, securing and hazards conditions before the cause is understood.
relevant to vessel type using observable evidence rather than convenience.
16. A stability calculation is required after cargo or ballast changes; a
7. Ballast is proposed to correct a list. A change affecting Cargo operations is machinery temperature rises 20 C above its normal trend. Which action best
being considered. How should it be handled? distinguishes the underlying cause from a symptom in abandonment procedures?
A. Move heavy cargo higher to free lower deck space without recalculation. A. Make an unverified ballast change solely to improve trim.
B. Correct a list by moving weight without checking stability impact. B. Depart with required safety equipment inoperative because the voyage is short.
C. Accept a loading condition based only on even draft readings. C. Discharge a small contaminant amount rather than initiating the response procedure.
D. Recalculate the relevant stability condition before accepting the loading or D. Verify the loading and stability data before accepting a cargo or ballast change,
ballast change. then confirm that the corrective action is effective before closure.
Correct Answer: D Correct Answer: D
Explanation: A defensible professional decision should be based on current evidence and Explanation: This is the most appropriate option because it connects the observed
applicable criteria. The other choices rely on assumption, remove safeguards, or change condition to the governing requirement and leaves a record of why the decision was made.
conditions before the cause is understood.
17. A pump loses discharge pressure while demand remains constant. Which response
8. An alarm occurs during machinery operation; a target bearing remains nearly is most consistent with the professional or compliance requirements governing
constant as range decreases. The abnormal condition directly affects hazards Marine engineering or electrical systems applicable to the named officer/module?
relevant to vessel type. What is the most appropriate response? A. Reset a protective trip repeatedly without finding the cause.
A. Depart with required safety equipment inoperative because the voyage is short. B. Disable an alarm that is interrupting operations.
B. Contain and report a pollution risk using the required onboard response and C. Protect the plant, verify the indication and diagnose the affected system before
documentation process. resetting or increasing load.
C. Discharge a small contaminant amount rather than initiating the response procedure. D. Increase machinery load to see whether the abnormal indication clears.
D. Make an unverified ballast change solely to improve trim. Correct Answer: C
Correct Answer: B 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.
18. A machinery temperature rises above its normal operating trend. Which handoff
9. An enclosed-space task is proposed without a completed entry check. Which practice best reduces error risk for Marine engineering?
documentation approach best supports traceability for Marine safety systems, A. Increase machinery load to see whether the abnormal indication clears.
lifesaving appliances and emergency procedures? B. Record the observed condition, supporting evidence, decision and responsible
A. 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. Make several plant changes simultaneously before recording the original condition.
B. Continue the transfer until the planned quantity is complete. D. Disable an alarm that is interrupting operations.
C. Depart with required safety equipment unavailable because conditions are calm. Correct Answer: B
D. Enter an enclosed space based only on a prior atmosphere test. Explanation: The strongest exam-style response is the one that controls immediate risk,
Correct Answer: A checks the relevant condition, and then acts within the defined requirements for Marine
Explanation: The correct choice follows a verify-act-confirm sequence. That is more engineering.
reliable than bypassing controls or making multiple uncontrolled changes.
1
,USCG Mate Uninspected Fishing Vessel Exam | Practice Exam Questions & Answers
19. A deck watch detects a change in bearing to another vessel. Which decision 28. A stability calculation is required after cargo or ballast changes; a
about electrical systems applicable to the named officer/module is best supported machinery temperature rises 20 C above its normal trend. The abnormal condition
by the available evidence? directly affects GMDSS awareness. What is the most appropriate response?
A. Respond to an abnormal machinery indication by protecting the plant, confirming the A. Make an unverified ballast change solely to improve trim.
indication and following the operating procedure. B. Depart with required safety equipment inoperative because the voyage is short.
B. Use a single navigation source after another source shows a material discrepancy. C. Contain and report a pollution risk using the required onboard response and
C. Assume constant bearing is harmless when range is decreasing. documentation process.
D. Silence a machinery alarm and continue at the same load without investigation. D. Discharge a small contaminant amount rather than initiating the response procedure.
Correct Answer: A Correct Answer: C
Explanation: The correct response protects the integrity of the process: establish the Explanation: This approach preserves control of the situation while producing evidence
facts, apply the appropriate control, and verify the result before closure. that can confirm whether the action actually corrected the issue involving GMDSS
awareness.
20. A spill occurs during machinery or cargo operations; the vessel draft
increases after cargo loading. Which review step adds the most value before 29. A pollution-prevention control is compromised during operations. Which
closing work involving Pollution prevention, MARPOL principles and environmental documentation approach best supports traceability for distress/urgency
protection? procedures?
A. Correct a required safety-equipment deficiency and verify readiness before A. Assume constant bearing is harmless when range is decreasing.
proceeding, then confirm that the corrective action is effective before closure. B. Silence a machinery alarm and continue at the same load without investigation.
B. Wash a small spill overboard rather than initiating the response process. C. Record the observed condition, supporting evidence, decision and responsible
C. Enter an enclosed space based only on a prior atmosphere test. follow-up; communicate any unresolved risk to the next responsible person.
D. Continue the transfer until the planned quantity is complete. D. Use a single navigation source after another source shows a material discrepancy.
Correct Answer: A Correct Answer: C
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 Pollution of masking the real problem and supports a traceable decision about distress/urgency
prevention, MARPOL principles and environmental protection. procedures.
21. A pollution-prevention barrier is found compromised during transfer. With 30. Visibility falls and several targets appear on radar. Which action is most
respect to Pollution prevention, what is the best FIRST action? likely to prevent recurrence of a problem involving Collision avoidance,
A. Stop or control the operation, protect personnel and follow the required emergency maneuvering, pilotage and restricted-water operations?
or pollution-response procedure. A. Make a series of small course changes that are difficult to detect.
B. Continue the transfer until the planned quantity is complete. B. Cross-check position, traffic and navigation sources before altering the passage
C. Depart with required safety equipment unavailable because conditions are calm. plan, then confirm that the corrective action is effective before closure.
D. Enter an enclosed space based only on a prior atmosphere test. C. Rely on one electronic source when independent information conflicts.
Correct Answer: A D. Continue on an uncertain position until the next scheduled fix.
Explanation: This answer uses verified evidence before action, which reduces the chance Correct Answer: B
of masking the real problem and supports a traceable decision about Pollution Explanation: The selected action best supports safe, compliant, and technically sound
prevention. performance because it addresses Collision avoidance, maneuvering, pilotage and
restricted-water operations using observable evidence rather than convenience.
22. A vessel must plan a passage through constrained waters. Which evidence is
most important when evaluating MARPOL principles? 31. Another vessel remains on nearly constant bearing while range decreases.
A. Make an unverified ballast change solely to improve trim. Which sequence is most appropriate when carrying out Collision avoidance?
B. Depart with required safety equipment inoperative because the voyage is short. A. Continue on an uncertain position until the next scheduled fix.
C. Review stability data, loading condition and free-surface effects and compare the B. Assume there is no risk because the other vessel is visually small.
findings with the applicable criteria. C. Use all available means to determine collision risk and take early, substantial
D. Discharge a small contaminant amount rather than initiating the response procedure. action consistent with the applicable navigation rules, then verify the resulting
Correct Answer: C state before moving to the next step.
Explanation: The selected action best supports safe, compliant, and technically sound D. Rely on one electronic source when independent information conflicts.
performance because it addresses MARPOL principles using observable evidence rather than Correct Answer: C
convenience. Explanation: A defensible professional decision should be based on current evidence and
applicable criteria. The other choices rely on assumption, remove safeguards, or change
23. A spill occurs during machinery or cargo operations. Which response best conditions before the cause is understood.
controls the primary risk associated with environmental protection?
A. Depart with required safety equipment unavailable because conditions are calm. 32. A vessel approaches restricted visibility with traffic nearby; visibility
B. Stop or control the operation, protect personnel and follow the required emergency falls below one nautical mile. Which choice demonstrates the strongest control of
or pollution-response procedure. restricted-water operations?
C. Continue the transfer until the planned quantity is complete. A. Contain and report a pollution risk using the required onboard response and
D. Wash a small spill overboard rather than initiating the response process. documentation process.
Correct Answer: B B. Depart with required safety equipment inoperative because the voyage is short.
Explanation: A defensible professional decision should be based on current evidence and C. Discharge a small contaminant amount rather than initiating the response procedure.
applicable criteria. The other choices rely on assumption, remove safeguards, or change D. Make an unverified ballast change solely to improve trim.
conditions before the cause is understood. Correct Answer: A
Explanation: This is the most appropriate option because it connects the observed
24. Visibility falls and several targets appear on radar; a machinery temperature
condition to the governing requirement and leaves a record of why the decision was made.
rises 20 C above its normal trend. Before proceeding with work involving STCW
competence, drills, records and professional watchkeeping standards, what should 33. A position fix disagrees with the expected track. What is required before
be verified? accepting the result related to Meteorology, tides, currents and environmental
A. Rely on one electronic source when independent information conflicts. conditions affecting safe navigation?
B. Review position sources, charted hazards, depth/under-keel clearance and traffic A. Assume there is no risk because the other vessel is visually small.
and compare the findings with the applicable criteria. B. Continue on an uncertain position until the next scheduled fix.
C. Make a series of small course changes that are difficult to detect. C. Review bearing/range trend, own-ship course/speed, target aspect and applicable
D. Assume there is no risk because the other vessel is visually small. rule and compare the findings with the applicable criteria.
Correct Answer: B D. Make a series of small course changes that are difficult to detect.
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: The correct choice follows a verify-act-confirm sequence. That is more
reliable than bypassing controls or making multiple uncontrolled changes.
25. A navigation fix does not agree with another available source. Which
troubleshooting approach is most appropriate for STCW competence? 34. The vessel approaches a traffic or pilotage constraint. Under these
A. Use a single navigation source after another source shows a material discrepancy. conditions, when should the issue involving environmental conditions affecting
B. Assume constant bearing is harmless when range is decreasing. safe navigation be escalated?
C. 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.
D. Respond to an abnormal machinery indication by protecting the plant, confirming the B. Cross-check position, traffic and navigation sources before altering the passage
indication and following the operating procedure. plan.
Correct Answer: D C. Rely on one electronic source when independent information conflicts.
Explanation: The correct choice follows a verify-act-confirm sequence. That is more D. Continue on an uncertain position until the next scheduled fix.
reliable than bypassing controls or making multiple uncontrolled changes. Correct Answer: B
Explanation: The strongest exam-style response is the one that controls immediate risk,
26. Another vessel remains on nearly constant bearing while range decreases.
checks the relevant condition, and then acts within the defined requirements for
Which action best supports a defensible decision about professional watchkeeping environmental conditions affecting safe navigation.
standards?
A. Make a series of small course changes that are difficult to detect. 35. A slack tank creates additional free-surface effect. Which comparison is most
B. Rely on one electronic source when independent information conflicts. useful for interpreting Ship stability, trim, loading and basic stability
C. Continue on an uncertain position until the next scheduled fix. calculations?
D. Cross-check position, traffic and navigation sources before altering the passage A. Move heavy cargo higher to free lower deck space without recalculation.
plan. B. Correct a list by moving weight without checking stability impact.
Correct Answer: D C. Accept a loading condition based only on even draft readings.
Explanation: The strongest exam-style response is the one that controls immediate risk, D. Review displacement, weight location, GM/stability data and tank condition and
checks the relevant condition, and then acts within the defined requirements for compare the findings with the applicable criteria.
professional watchkeeping standards. Correct Answer: D
Explanation: The correct response protects the integrity of the process: establish the
27. A navigation fix does not agree with another available source. A change
facts, apply the appropriate control, and verify the result before closure.
affecting Communications, GMDSS awareness and distress/urgency procedures is
being considered. How should it be handled? 36. Cargo loading changes the vessel's vertical center of gravity; a navigation
A. Respond to an abnormal machinery indication by protecting the plant, confirming the fix differs by 0.8 nautical mile from another source. Which action best
indication and following the operating procedure. distinguishes the underlying cause from a symptom in Ship stability?
B. Silence a machinery alarm and continue at the same load without investigation. A. Accept a loading condition based only on even draft readings.
C. Use a single navigation source after another source shows a material discrepancy. B. Account for free-surface and weight-shift effects when evaluating stability and
D. Assume constant bearing is harmless when range is decreasing. trim, then confirm that the corrective action is effective before closure.
Correct Answer: A C. Ignore slack-tank effects because total liquid weight is unchanged.
Explanation: The correct response protects the integrity of the process: establish the D. Correct a list by moving weight without checking stability impact.
facts, apply the appropriate control, and verify the result before closure. Correct Answer: B
Explanation: This approach preserves control of the situation while producing evidence
that can confirm whether the action actually corrected the issue involving Ship
stability.
2
, USCG Mate Uninspected Fishing Vessel Exam | Practice Exam Questions & Answers
37. A slack tank creates additional free-surface effect. Which response is most 46. A towing or deck operation is affected by changing weather. Which action best
consistent with the professional or compliance requirements governing basic supports a defensible decision about Fire prevention?
stability calculations? A. Make an unverified ballast change solely to improve trim.
A. Correct a list by moving weight without checking stability impact. B. Contain and report a pollution risk using the required onboard response and
B. Move heavy cargo higher to free lower deck space without recalculation. documentation process.
C. Ignore slack-tank effects because total liquid weight is unchanged. C. Depart with required safety equipment inoperative because the voyage is short.
D. Recalculate the relevant stability condition before accepting the loading or D. Discharge a small contaminant amount rather than initiating the response procedure.
ballast change. Correct Answer: B
Correct Answer: D Explanation: The selected action best supports safe, compliant, and technically sound
Explanation: This answer uses verified evidence before action, which reduces the chance performance because it addresses Fire prevention using observable evidence rather than
of masking the real problem and supports a traceable decision about basic stability convenience.
calculations.
47. An electrical protective device trips repeatedly. A change affecting damage
38. A deck load is shifted to a higher position. Which handoff practice best control is being considered. How should it be handled?
reduces error risk for Cargo operations, stowage, securing and hazards relevant A. Disable an alarm that is interrupting operations.
to vessel type? B. Reset a protective trip repeatedly without finding the cause.
A. Ignore slack-tank effects because total liquid weight is unchanged. C. Protect the plant, verify the indication and diagnose the affected system before
B. Accept a loading condition based only on even draft readings. resetting or increasing load.
C. Move heavy cargo higher to free lower deck space without recalculation. D. Make several plant changes simultaneously before recording the original condition.
D. Record the observed condition, supporting evidence, decision and responsible Correct Answer: C
follow-up; communicate any unresolved risk to the next responsible person. Explanation: A defensible professional decision should be based on current evidence and
Correct Answer: D 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 Cargo operations, stowage, securing and hazards
48. A pre-departure check identifies a safety-equipment deficiency; a navigation
relevant to vessel type using observable evidence rather than convenience.
fix differs by 0.8 nautical mile from another source. The abnormal condition
39. Ballast is proposed to correct a list. Which decision about Cargo operations directly affects abandonment procedures. What is the most appropriate response?
is best supported by the available evidence? A. Discharge a small contaminant amount rather than initiating the response procedure.
A. Recalculate the relevant stability condition before accepting the loading or B. Contain and report a pollution risk using the required onboard response and
ballast change. documentation process.
B. Move heavy cargo higher to free lower deck space without recalculation. C. Make an unverified ballast change solely to improve trim.
C. Correct a list by moving weight without checking stability impact. D. Depart with required safety equipment inoperative because the voyage is short.
D. Accept a loading condition based only on even draft readings. Correct Answer: B
Correct Answer: A Explanation: This is the most appropriate option because it connects the observed
Explanation: A defensible professional decision should be based on current evidence and condition to the governing requirement and leaves a record of why the decision was made.
applicable criteria. The other choices rely on assumption, remove safeguards, or change
conditions before the cause is understood.
49. A pump loses discharge pressure while demand remains constant. Which
documentation approach best supports traceability for Marine engineering or
40. A navigation fix does not agree with another available source; the vessel electrical systems applicable to the named officer/module?
draft increases after cargo loading. Which review step adds the most value before A. Reset a protective trip repeatedly without finding the cause.
closing work involving hazards relevant to vessel type? B. Disable an alarm that is interrupting operations.
A. Verify the loading and stability data before accepting a cargo or ballast change, C. Increase machinery load to see whether the abnormal indication clears.
then confirm that the corrective action is effective before closure. D. Record the observed condition, supporting evidence, decision and responsible
B. Make an unverified ballast change solely to improve trim. follow-up; communicate any unresolved risk to the next responsible person.
C. Depart with required safety equipment inoperative because the voyage is short. Correct Answer: D
D. Discharge a small contaminant amount rather than initiating the response procedure. Explanation: The correct choice follows a verify-act-confirm sequence. That is more
Correct Answer: A reliable than bypassing controls or making multiple uncontrolled changes.
Explanation: This is the most appropriate option because it connects the observed
condition to the governing requirement and leaves a record of why the decision was made.
50. A machinery temperature rises above its normal operating trend. Which action
is most likely to prevent recurrence of a problem involving Marine engineering?
41. An enclosed-space task is proposed without a completed entry check. With A. Compare operating pressures/temperatures, equipment status and recent changes to
respect to Marine safety systems, lifesaving appliances and emergency procedures, isolate the fault safely, then confirm that the corrective action is effective before
what is the best FIRST action? closure.
A. Continue the transfer until the planned quantity is complete. B. Increase machinery load to see whether the abnormal indication clears.
B. Depart with required safety equipment unavailable because conditions are calm. C. Make several plant changes simultaneously before recording the original condition.
C. Stop or control the operation, protect personnel and follow the required emergency D. Disable an alarm that is interrupting operations.
or pollution-response procedure. Correct Answer: A
D. Enter an enclosed space based only on a prior atmosphere test. 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 Marine
Explanation: The correct choice follows a verify-act-confirm sequence. That is more engineering.
reliable than bypassing controls or making multiple uncontrolled changes.
51. An engineering watch observes an abnormal temperature or pressure. Which
42. Required lifesaving equipment is not ready before departure. Which evidence sequence is most appropriate when carrying out electrical systems applicable to
is most important when evaluating Marine safety systems? the named officer/module?
A. Enter an enclosed space based only on a prior atmosphere test. A. Silence a machinery alarm and continue at the same load without investigation.
B. Wash a small spill overboard rather than initiating the response process. B. Use a single navigation source after another source shows a material discrepancy.
C. Depart with required safety equipment unavailable because conditions are calm. C. Assume constant bearing is harmless when range is decreasing.
D. Review equipment inventory, inspection status and operational readiness and compare D. Respond to an abnormal machinery indication by protecting the plant, confirming the
the findings with the applicable criteria. indication and following the operating procedure, then verify the resulting state
Correct Answer: D before moving to the next step.
Explanation: The strongest exam-style response is the one that controls immediate risk, Correct Answer: D
checks the relevant condition, and then acts within the defined requirements for Marine Explanation: The correct response protects the integrity of the process: establish the
safety systems. facts, apply the appropriate control, and verify the result before closure.
43. An alarm occurs during machinery operation. Which response best controls the 52. A spill occurs during machinery or cargo operations; visibility falls below
primary risk associated with lifesaving appliances? one nautical mile. Which choice demonstrates the strongest control of Pollution
A. Respond to an abnormal machinery indication by protecting the plant, confirming the prevention, MARPOL principles and environmental protection?
indication and following the operating procedure. A. Wash a small spill overboard rather than initiating the response process.
B. Use a single navigation source after another source shows a material discrepancy. B. Correct a required safety-equipment deficiency and verify readiness before
C. Assume constant bearing is harmless when range is decreasing. proceeding.
D. Silence a machinery alarm and continue at the same load without investigation. C. Enter an enclosed space based only on a prior atmosphere test.
Correct Answer: A D. Continue the transfer until the planned quantity is complete.
Explanation: The correct response protects the integrity of the process: establish the Correct Answer: B
facts, apply the appropriate control, and verify the result before closure. Explanation: This approach preserves control of the situation while producing evidence
that can confirm whether the action actually corrected the issue involving Pollution
44. An enclosed-space task is proposed without a completed entry check; prevention, MARPOL principles and environmental protection.
visibility falls below one nautical mile. Before proceeding with work involving
emergency procedures, what should be verified? 53. A pollution-prevention barrier is found compromised during transfer. What is
A. Wash a small spill overboard rather than initiating the response process. required before accepting the result related to Pollution prevention?
B. Review equipment inventory, inspection status and operational readiness and compare A. Continue the transfer until the planned quantity is complete.
the findings with the applicable criteria. B. Depart with required safety equipment unavailable because conditions are calm.
C. Enter an enclosed space based only on a prior atmosphere test. C. Enter an enclosed space based only on a prior atmosphere test.
D. Continue the transfer until the planned quantity is complete. D. Review source/quantity of release, containment condition, notifications and
Correct Answer: B response equipment and compare the findings with the applicable criteria.
Explanation: This approach preserves control of the situation while producing evidence Correct Answer: D
that can confirm whether the action actually corrected the issue involving emergency Explanation: This answer uses verified evidence before action, which reduces the chance
procedures. of masking the real problem and supports a traceable decision about Pollution
prevention.
45. A machinery temperature rises above its normal operating trend. Which
troubleshooting approach is most appropriate for Fire prevention, firefighting, 54. A towing or deck operation is affected by changing weather. Under these
damage control and abandonment procedures? conditions, when should the issue involving MARPOL principles be escalated?
A. Reset a protective trip repeatedly without finding the cause. A. Discharge a small contaminant amount rather than initiating the response procedure.
B. Protect the plant, verify the indication and diagnose the affected system before B. Make an unverified ballast change solely to improve trim.
resetting or increasing load. C. Contain and report a pollution risk using the required onboard response and
C. Disable an alarm that is interrupting operations. documentation process.
D. Increase machinery load to see whether the abnormal indication clears. D. Depart with required safety equipment inoperative because the voyage is short.
Correct Answer: B 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 Fire prevention, performance because it addresses MARPOL principles using observable evidence rather than
firefighting, damage control and abandonment procedures. convenience.
3
