A.Four times the depth of water
B.Two and one-half times the depth of water
C.Five to seven times the depth of water
D.Fifteen times the depth of water
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A.prevent fouling of the anchor
B.decrease swing of the vessel
C.prevent dragging of the anchor
D.reduce strain on the windlass
A.Chain
B.Nylon
C.Manila
D.Wire
A.Serves as a backup for the main tow hawser in case of failure
B.Provides weight and flexibility to the total tow makeup
C.Lengthens the main tow hawser to keep the tow in step
D.Distributes the towing load
A.The type of anchor and mooring line being used
B.The type of bottom in which the ship is anchored
C.A significant difference between air and water temperature
D.The chain contacting a chock or fairlead between the tensiometer and the lower swivel fairlead
A.berthing
B.searching
C.anchoring
D.picking up pilot
最新試題
What effect is achieved from soaking an anchor（）．
You are underway in fog and you hear one prolonged blast followed by two short blasts.This is a vessel（）.
A check line is（）.
You are riding to a single anchor.The vessel is yawing excessively.Which action should be taken to reduce the yawing（）.
When turning a ship in restricted space with a strong wind，it is normally best to（）.
If a ship has sternway，with accommodation block aft，she may settle with the wind（）.
You are proceeding down a channel and lose the engine（s）.You must use the anchors to stop the ship.Which statement is true（）.
When entering the bridge，pilots of the Suez Canal want the master of the ship to fill in （）.
You are landing a single-screw vessel，with a right-hand propeller，starboard side to the dock.When you have approached the berth and back the engine，you would expect the vessel to （）.
Mariners should ensure correct（）of aids to navigation during twilight periods when some lighted aids to navigation are lit while others are not.