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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Chart legends which indicate a conspicuous landmark are printed in（）.
Clouds form（）.
Dacron sails，when not in use，may be damaged if（）.
Coiling new rope against the lay，bringing the lower end up through the center of the coil，then coiling with the lay，in order to remove the kinks，is known as（）.
Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.
Deneb is found in what constellation?（）
Cumulonimbus clouds are formed by（）.
Cumulus clouds that have undergone vertical development and have become cumulonimbus in form，indicate（）.
Concerning a celestial observation，the azimuth angle is measured from the principal vertical circle to the（）.
Deck beams on a ship are generally spaced at equal intervals and run（）.