A.It causes minimal damage
B.It is safer for personnel
C.It is cheaper
D.It is most effective on a per unit basis
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A.Grade A flammable liquid
B.Grade C flammable liquid
C.Grade D combustible liquid
D.Grade E combustible liquid
A.six months
B.one year
C.two years
D.thirty months
A.loss of pay during the period of such use
B.reprimand by the US Coast Guard
C.revocation of license or certificate
D.termination of employment
A.lower most continuous deck not broken by water tight bulkheads
B.after most weather deck above the main strength deck
C.upper or weather deck above the main strength deck
D.deck of light construction below the main or strength deck
A.seaplanes
B.non-displacement craft
C.barges
D.All of the above
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Dacron sails，when not in use，may be damaged if（）.
Compared to a low pressure system，generally the air in a high is（）.
Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact（）.
Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.
Daylight savings time is a form of zone time that adopts the time（）.
Chart legends which indicate a conspicuous landmark are printed in（）.
Clean air standards referred to as “Grade D” apply to compressed air for use in（）.
Charts showing the coast of Mexico are produced by the United States（）.
Cumulonimbus clouds are formed by（）.
Deck beams on a ship are generally spaced at equal intervals and run（）.