A.At the head of the tow
B.75m from the head of the tow
C.120m from the head of the tow
D.180m from the head of the tow
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A.yaw
B.surge
C.sway
D.swing
A.only one high and one low water occur during a lunar day
B.the high tide is higher and the low tide is lower than usual
C.the high tide and low tide are exactly six hours apart
D.two high tides occur during a lunar day
A.bar securing a cargo port
B.centerline vertical bulkhead
C.deep beam
D.spanner stay
A.crossing
B.transit
C.transfer
D.passing
A.directional current
B.forward current
C.propeller current
D.wake current
最新試題
A tug’s horsepower available at the shaft is（）.
An alternating light（）.
A vessel reduces speed without backing. The rate that her speed through the water decreases depends primarily on the（）.
In most cases，when a large merchant vessel enters shallow water at high speed the（）.
If the situation arose where it became necessary to tow a disabled vessel，which statement is TRUE concerning the towing line?（）.
A vessel which is being assisted by an icebreaker should indicate that she is ready to cast off the towline by（）.
A vessel proceeding along the bank of a river or channel has the tendency to（）.
Topside icing decreases vessel stability becauseit increases（）.
A towing vessel should be on the crest of a wave at the same time as its tow and in the trough at the same time. The term used to describe this is（）.
Topside icing decreases vessel stability because it is usually off-center and（）.