A.A downbound vessel
B.An upbound vessel
C.Current reaction when the lock chamber is being emptied
D.Current reaction when the lock chamber is being filled
您可能感興趣的試卷
你可能感興趣的試題
A.pigtail chain
B.thrash chain
C.crown chain
D.wear chain
A.amount of chain lying along the bottom increases
B.length of the catenary is reduced
C.mooring line tension is increased
D.amount of chain lying along the bottom decreases
A.design of the anchor
B.weight of the anchor
C.scope of the anchor chain
D.size of the vessel
A.the amount of line paid out
B.how much the vessel sheers while at anchor
C.any change in the tautness of the anchor chain
D.changes in bearings of fixed objects onshore
A.eliminate navigational hazards by allowing the chain to lie along the harbor bottom
B.increase the anchor's reliability by providing a large catenary in the chain
C.permit the ship to maneuver in the stream while weighing anchors
D.prevent damage to the stern caused by swinging against the pier in the approach
最新試題
Conventional anchors are least likely to hold in a bottom consisting of（）.
All the following is true except that（）.
A “Mediterranean moor” should be used when（）.
（）is not a step for anchoring preparation.
When weighing anchor in a rough sea，how would you avoid risk of damaging the bow plating （）.
You are mooring to a buoy．You should approach the buoy with the current from（）.
When anchoring，good practice requires 5 to 7 fathoms of chain for each fathom of depth. In deep water you should use（）.
What effect is achieved from soaking an anchor（）．
Which would you NOT use to report the amount of anchor chain out? Three shots（）.