A.is
B.are
C.was
D.were
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A.current setting your vessel on the wall
B.current setting into the lock chamber
C.an eddy working along the lower guide wall
D.current setting counterclockwise
A.American Bureau of Shipping
B.Commissioner of Customs
C.Treasury Department
D.Coast Guard
A.actual total loss
B.constructive total loss
C.general average
D.particular average
A.any wire rope used for mooring
B.a fire-warp
C.a mooring line running diagonally to the keel
D.a mooring line perpendicular to the keel
A.sailing chart
B.general chart
C.coastal chart
D.harbor chart
A.is easy to connect
B.provides an effective catenary and absorbs shock due to its weight
C.makes rigging a swivel unnecessary
D.prevents the tow from yawing by the drag of the chains in a seaway
A.sailing chart
B.general chart
C.coast chart
D.harbor chart
A.structural bulkhead
B.exterior bulkhead
C.centerline bulkhead
D.joiner bulkhead
A.a rotation
B.a revolution
C.space motion
D.nutation
A.matching pulse rates of at least 20 stations
B.an automatic on-and-off switch
C.a horizontal matching of all delayed hyperbolic signals
D.automatic signal acquisition and cycle matching
最新試題
A “Mediterranean moor” should be used when（）.
A “fifteen-pound” CO2 extinguisher is so called because（）.
A celestial body will cross the prime vertical circle when the latitude is numerically（）.
A common class of wire rope used for mooring is the 6x19 class. What does the 6 represent?（）
A “spring line” is（）.
A ballasted vessel sinks enroute to a dry dock. Under these circumstances，the vessel’s owner can claim（）.
A “full service” Loran-C receiver will provide（）.
A block and tackle is “rove to advantage”. This means that the（）.
A “l(fā)oose” tow may cause all of the following EXCEPT（）.
A crew member is having an epileptic convulsion. You should（）.