A.indicated horsepower
B.brake horsepower
C.dynamic horsepower
D.net horsepower
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A.tow strain
B.catenary length
C.being in step
D.Williamson's Tow
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
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
最新試題
In most cases，when a large merchant vessel enters shallow water at high speed the（）.
All persons or vessels within the lock area，including the lock approach channels，come under the authority of the（）.
A vessel shall be deemed to be overtaking when she can see at night（）.
A vessel proceeding along the course of a narrow channel shall keep as near to the outer limitof the channel which lies on her starboard side as it is safe and practicable.Which one of the followings does the statement express?（）.
A vessel the passage of which is not to be impeded（）to comply with this Rule when the two vessels are approaching one another so as to involve risk of collision.
Topside icing that blocks freeing ports and scuppers（）.
In selecting a tug for moving a vessel，consideration should be given to its（）.
In order to reduce your wake in a narrow channel you should（）.
A tug’s horsepower available at the shaft is（）.
Ice blink is（）.