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USCG MST SWE Exam 2025 – Marine Science Technician Service-Wide Exam Study Guide

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USCG MST SWE Exam evaluates the knowledge and professional competence of United States Coast Guard Marine Science Technicians (MSTs) seeking advancement. This Service-Wide Exam covers essential topics such as environmental response, marine inspections, pollution prevention, hazardous materials handling, and maritime law enforcement. Administered by the U.S. Coast Guard Personnel Service Center, the MST SWE measures readiness for higher-level responsibilities within the MST rating. Comprehensive study guides, reference materials, and practice questions help candidates strengthen technical expertise and ensure promotion readiness.

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USCG MST SWE Exam NEWEST 2025
COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW
VERSION!!




How long are ISSCs valid for? - CORRECT ANSWER- 5 years



How often to ISSCs need to be endorsed? - CORRECT ANSWER- Intermediately, between 2nd &
3rd year.



How many points are assigned to a vessel that is Qualship 21? - CORRECT ANSWER- 0



Qualship 21 Program? - CORRECT ANSWER- -36 months for all vessels.

-Limited PSC oversight for freight vessels.

-Reduced scope of exam for tanker vessels.

-Regular scope of exam for passenger vessels.



How long are COIs valid for? - CORRECT ANSWER- 5 years

,Which certificate is NOT required to be on the NOA? - CORRECT ANSWER- Safe Manning



Which certificates ARE required to be on the NOA? - CORRECT ANSWER- DOC, SMC, ISSC, COFR



What is the E/R style ballast water procedure? - CORRECT ANSWER- Empty/Refill



How long must ballast water records be maintained for? - CORRECT ANSWER- 2 years



How long from arrival must ballast water be reported? - CORRECT ANSWER- Within 6 hours.



How long is a COC for a tanker valid for? - CORRECT ANSWER- 24 months



All thwarts and side seas in a life boat shall be fitted... - CORRECT ANSWER- As low as possible.



How often should life boats be lowered into the water? - CORRECT ANSWER- Every 3 months for
davit launched, Every 6 months for free-fall.

How long are ISM-SMC valid for when issued to vessels? - CORRECT ANSWER- 5 years



How often to SMCs need to be endorsed? - CORRECT ANSWER- Intermediately, between 2nd &
3rd year.



How long is an interim ISM-SMC valid for? - CORRECT ANSWER- 6 months



How long are ISM-DOCs issued to companies valid for? - CORRECT ANSWER- 5 years

,How often are DOCs endorsed? - CORRECT ANSWER- Annually



How long is an interim ISM-DOC valid for? - CORRECT ANSWER- 12 months



What is the required distance from the forward life raft to the aft lifesaving appliances? -
CORRECT ANSWER- 100 meters



Life rafts/life boats should be stowed: - CORRECT ANSWER- As close to accommodation and
service spaces as possible.



Life boat drinking water requirement: - CORRECT ANSWER- 3 liters per person.



Life raft drinking water requirement: - CORRECT ANSWER- 1.5 liters per person.



How often must crew members conduct fire and abandon ship drills? - CORRECT ANSWER- Every
month and after a change out of 25% of crew.



What is the passenger vessel capacity with 1 radiophone in its life boat? - CORRECT ANSWER-
199-1,500



What is the passenger vessel capacity for radiophones in ALL life boats? - CORRECT ANSWER-
More than 1,500.



How many fire suits do passenger vessels with 36 people need? - CORRECT ANSWER- 2 additional
for each main vertical zone.

, How many passengers on a passenger vessel before it needs a life boat? - CORRECT ANSWER- 30



What is a inductor type froth nozzle and portable tank containing at least 4.5 gallons of froth-
making liquid and 1 spare tank? - CORRECT ANSWER- Portable Froth Applicator



What must be submitted for the increasing traffic in a navigable waterway? - CORRECT ANSWER-
Waterway Suitability Assessment (WSA)



When must an LNG facility submit their WSA and LOI? - CORRECT ANSWER- 1 year prior to the
start of operations.



What does a WSA consist of? - CORRECT ANSWER- Preliminary WSA (submitted to COTP with
LOI) and a Follow-on WSA (submitted 180 days prior to transferring).



When must a facility submit a final report to the COTP? - CORRECT ANSWER- At least 30 but not
more than 60 days prior to the start of operations.



Who can raise the MARSEC level? - CORRECT ANSWER- COTP



Required discharge containment/removal equipment for oil barges longer than 400 ft. -
CORRECT ANSWER- 12 Barrels



Required discharge containment/removal equipment for oil barges shorter than 400 ft. -
CORRECT ANSWER- 7 Barrels

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