A.the center of the hydrodynamic forces acting on the underwater hull to resist the effect of the wind
B.the point of influence of wind on the ship
C.the pivot point
D.the point on the ship's above-water structure upon which the whole force of the wind can be considered an act
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A.turning ability deteriorates
B.virtual mass increases
C.the effect of the propeller transverse thrust on yaw alters
D.the ship will turn with its head towards the wind
A.obscured
B.darkened
C.greyed
D.delighted
A.Free of charge
B.Important
C.Required
D.Unnecessary
A.identification
B.distinction
C.discrimination
D.clearly seeing
A.Chain stopper
B.Devil's claw
C.Hawse ratchet
D.Riding pawl
最新試題
What effect is achieved from soaking an anchor（）．
If the ship is alongside the wharf，what kind of（）is used?
A check line is（）.
When dropping anchor，you are stationed at the windlass brake．The most important piece（s）of gear is（are）（）.
Pilotage in this country is（）.
You are proceeding down a channel and lose the engine（s）.You must use the anchors to stop the ship.Which statement is true（）.
You are anchoring in 16 fathoms of water．On a small to medium size vessel，the（）.
A “Mediterranean moor” should be used when（）.
All the following is true except that（）.
You are riding to a single anchor.The vessel is yawing excessively.Which action should be taken to reduce the yawing（）.