A.without losing the rhythm of respiration
B.only with the help of two other people
C.by not stopping the respiration for more than 5 minutes
D.at ten minute intervals
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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
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
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Day-shapes must be displayed（）.
Compliance with the terms of the load line certificate on a ship is the responsibility of the（）.
Chronometer error may be found by（）.
Consideration should be given in planning for the mooring orientation in a new location so that in adverse weather a crane is available to off-load the supply vessel on what side of the unit?（）
Charts showing the coast of Mexico are produced by the United States（）.
Clean air standards referred to as “Grade D” apply to compressed air for use in（）.
Deneb is found in what constellation?（）
Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.
Channel 13 is primarily used for ship to ship communication. Channel 13 is also authorized for（）.
Deficient oxygen content inside a chain locker can be detected with（）.