USCG MST SWE EXAM PRACTICE QUESTIONS
WITH VERIFIED SOLUTIONS TESTED AND
APPROVED GRADED A+ NEW MODIFIED 2026
LATEST
The first and broadest term used to describe regulated cargo? --CORRECT ANSWER--
Dangerous Cargo
Who is responsible for providing the witness for a prewash --CORRECT ANSWER--COTP
During the prewash procedure, where are Category "A" and high-viscosity Category "B" and
"C" NLS's discharged? --CORRECT ANSWER--Reception facility
Once an oil transfer is complete, the person in charge must _____. --CORRECT ANSWER--
sign the transfer papers
The purpose of a facility Certificate of Adequacy is to ___? --CORRECT ANSWER--verify
adequacy of the facility to receive NLS's
What does a vessel have to have in order for a facility to be able to receive vapors? --
CORRECT ANSWER--Valid COI endorsed for vapor recovery
What is a vapor destruction unit? --CORRECT ANSWER--Incinerator
Page 1 of 141
,What color must the vapor recovery hose be? --CORRECT ANSWER--yellow and red
What must be stenciled on a Vapor Recovery hose? --CORRECT ANSWER--"Vapor"
What is the general color combination used to mark fire fighting appliances in a warehouse? -
-CORRECT ANSWER--Red and white
What do facilities with vapor recovery systems have to provide to the Coast Guard? --
CORRECT ANSWER--Written certification that the VRS meets the requirements
The purpose of a facility Interim Certificate of Adequacy is to _____. --CORRECT
ANSWER--allow operations pending review of the paperwork and on-scene inspection of the
facility
Cargo pump systems and gauges, cargo hoses and piping, and relief valve operations is
required to be tested at least once every ___ months. --CORRECT ANSWER--12
What is the MAXIMUM distance in feet for cargo space between cross aisles? --CORRECT
ANSWER--75
What is the MINIMUM width allowed for the main aisle on a designated waterfront facility
with fire truck access is _____ feet. --CORRECT ANSWER--20
What is the MINIMUM width allowed for the main aisle on a designated waterfront facility
without fire truck access is _____ feet. --CORRECT ANSWER--8
Page 2 of 141
,How much clearance shall be maintained around fire fighting appliances surrounded by
cargo? --CORRECT ANSWER--3 feet
How much clearance shall be maintained around fire fighting appliances? --CORRECT
ANSWER--4 feet
No cargo shall be tiered closer then 3 feet to a ceiling structure member or ___ inches to a
sprinkler head. --CORRECT ANSWER--12
When stacking flammable or combustible material, what is the MAXIMUM height of
flammable cargo? --CORRECT ANSWER--12 feet
How many feet of clear and open space must be maintained between cargo, freight,
merchandise and other materials piles and both sides of facility walls, fire walls and fire
stops, and sides of the pier? --CORRECT ANSWER--2 feet
Which form is the application and permit to handle explosives or other dangerous cargo? --
CORRECT ANSWER--CG-4260
For vapor recovery systems, who is a certifying entity? --CORRECT ANSWER--Individual
or company certified by G-MTH
May the COTP impose any requirements from 33 CFR 154-156 on a Marina Fuel Dock, that
does not transfer oil or hazmat in bulk to a vessel with a capacity of over 250 Bbls? --
CORRECT ANSWER--Yes
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, While conducting a spot check of MOTF, you notice that there are no watchmen provided to
keep the barges secured from unauthorized access. Is this a problem? --CORRECT
ANSWER--Yes
What things DO NOT have to be marked on all oil transfer hoses? --CORRECT ANSWER--
Burst pressure
What class of explosives require written permits? --CORRECT ANSWER--1.2, 1.3, 1.4, 1.5
Who is required to witness and verify the prewash of any cargo tank? --CORRECT
ANSWER--prewash surveyor
What equipment is required when a product poses a significant environmental threat? --
CORRECT ANSWER--discharge removal
The regulations in 33 CFR 154 apply to a facility or marina which is capable of transferring
___ barrels or more. --CORRECT ANSWER--250
What is the form used for the transaction of designated dangerous cargo? --CORRECT
ANSWER--CG-4260
What is included in designated dangerous cargo? --CORRECT ANSWER--1.2 explosives
What type of cargo requires a written permit to handle? --CORRECT ANSWER--Designated
dangerous cargo
DOI's must be on record for how long? --CORRECT ANSWER--1 yr
Page 4 of 141
WITH VERIFIED SOLUTIONS TESTED AND
APPROVED GRADED A+ NEW MODIFIED 2026
LATEST
The first and broadest term used to describe regulated cargo? --CORRECT ANSWER--
Dangerous Cargo
Who is responsible for providing the witness for a prewash --CORRECT ANSWER--COTP
During the prewash procedure, where are Category "A" and high-viscosity Category "B" and
"C" NLS's discharged? --CORRECT ANSWER--Reception facility
Once an oil transfer is complete, the person in charge must _____. --CORRECT ANSWER--
sign the transfer papers
The purpose of a facility Certificate of Adequacy is to ___? --CORRECT ANSWER--verify
adequacy of the facility to receive NLS's
What does a vessel have to have in order for a facility to be able to receive vapors? --
CORRECT ANSWER--Valid COI endorsed for vapor recovery
What is a vapor destruction unit? --CORRECT ANSWER--Incinerator
Page 1 of 141
,What color must the vapor recovery hose be? --CORRECT ANSWER--yellow and red
What must be stenciled on a Vapor Recovery hose? --CORRECT ANSWER--"Vapor"
What is the general color combination used to mark fire fighting appliances in a warehouse? -
-CORRECT ANSWER--Red and white
What do facilities with vapor recovery systems have to provide to the Coast Guard? --
CORRECT ANSWER--Written certification that the VRS meets the requirements
The purpose of a facility Interim Certificate of Adequacy is to _____. --CORRECT
ANSWER--allow operations pending review of the paperwork and on-scene inspection of the
facility
Cargo pump systems and gauges, cargo hoses and piping, and relief valve operations is
required to be tested at least once every ___ months. --CORRECT ANSWER--12
What is the MAXIMUM distance in feet for cargo space between cross aisles? --CORRECT
ANSWER--75
What is the MINIMUM width allowed for the main aisle on a designated waterfront facility
with fire truck access is _____ feet. --CORRECT ANSWER--20
What is the MINIMUM width allowed for the main aisle on a designated waterfront facility
without fire truck access is _____ feet. --CORRECT ANSWER--8
Page 2 of 141
,How much clearance shall be maintained around fire fighting appliances surrounded by
cargo? --CORRECT ANSWER--3 feet
How much clearance shall be maintained around fire fighting appliances? --CORRECT
ANSWER--4 feet
No cargo shall be tiered closer then 3 feet to a ceiling structure member or ___ inches to a
sprinkler head. --CORRECT ANSWER--12
When stacking flammable or combustible material, what is the MAXIMUM height of
flammable cargo? --CORRECT ANSWER--12 feet
How many feet of clear and open space must be maintained between cargo, freight,
merchandise and other materials piles and both sides of facility walls, fire walls and fire
stops, and sides of the pier? --CORRECT ANSWER--2 feet
Which form is the application and permit to handle explosives or other dangerous cargo? --
CORRECT ANSWER--CG-4260
For vapor recovery systems, who is a certifying entity? --CORRECT ANSWER--Individual
or company certified by G-MTH
May the COTP impose any requirements from 33 CFR 154-156 on a Marina Fuel Dock, that
does not transfer oil or hazmat in bulk to a vessel with a capacity of over 250 Bbls? --
CORRECT ANSWER--Yes
Page 3 of 141
, While conducting a spot check of MOTF, you notice that there are no watchmen provided to
keep the barges secured from unauthorized access. Is this a problem? --CORRECT
ANSWER--Yes
What things DO NOT have to be marked on all oil transfer hoses? --CORRECT ANSWER--
Burst pressure
What class of explosives require written permits? --CORRECT ANSWER--1.2, 1.3, 1.4, 1.5
Who is required to witness and verify the prewash of any cargo tank? --CORRECT
ANSWER--prewash surveyor
What equipment is required when a product poses a significant environmental threat? --
CORRECT ANSWER--discharge removal
The regulations in 33 CFR 154 apply to a facility or marina which is capable of transferring
___ barrels or more. --CORRECT ANSWER--250
What is the form used for the transaction of designated dangerous cargo? --CORRECT
ANSWER--CG-4260
What is included in designated dangerous cargo? --CORRECT ANSWER--1.2 explosives
What type of cargo requires a written permit to handle? --CORRECT ANSWER--Designated
dangerous cargo
DOI's must be on record for how long? --CORRECT ANSWER--1 yr
Page 4 of 141
