单项选择题

Mooring with two bow anchors has which major advantage ……

Mooring with two bow anchors has which major advantage over anchoring with one bow anchor? （）.

A.The vessel will not reverse direction in a tidal current
B.The radius of the vessel's swing will be shortened
C.A mooring approach may be made from any direction
D.The vessel will not swing with a change in wind

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单项选择题Leg penetration to depths which require pullout forces greater than that which can be supplied by the buoyancy of the hull may exist in（）.

A.soft mud
B.sand
C.silt
D.soft to firm clays

单项选择题It is sometimes necessary to moor bow and stern to two mooring buoys in order to（）.

A.avoid any swing in a restricted space
B.shelter the ship from strong winds
C.prevent from touching with other vessels
D.make a convenience of cargo discharging

单项选择题Installing tandem anchors on the same mooring line is referred to as（）.

A.doubling
B.pretensioning
C.piggybacking
D.paralleling

单项选择题In a crossing situation，a vessel fishing must keep out of the way of a vessel which is（）.

A.under sail
B.towing
C.restricted in her ability to maneuver
D.engaged in pilotage duty

单项选择题In a combination chain and wire rope mooring system，the anchor chain is deployed at the anchor end of the line to（）.

A.increase fatigue life of the system
B.reduce the time to retrieve the line
C.increase the holding power
D.reduce the catenary