A.six months
B.one year
C.two years
D.thirty months
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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
A.comfortable
B.suitable
C.stable
D.favorable
A.length between the perpendiculars
B.length along the waterline
C.length overall
D.registered length
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Deneb is found in what constellation?（）
Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.
Concerning the identification signal for a pilot vessel，in fog，which statement is TRUE?（）
Clean air standards referred to as “Grade D” apply to compressed air for use in（）.
Compared to internal structural plating，the exterior hull plating on a ship is usually（）.
Corrosive liquids and acids should have which kind of label?（）
Chronometer error may be found by（）.
Cumulonimbus clouds are formed by（）.
Control of fire should be addressed（）.
Conventional anchors are least likely to hold in a bottom consisting of（）.