单选题Forty-five fathoms is marked on the anchor chain by（）.A one turn of wire on the first stud from each side of the detachable linkB two turns of wire on the second stud from each side of the detachable linkC three turns of wire on the third stud from eac

You are anchoring in 16 fathoms of water．On a small to medium size vessel，the ______．

A.Anchor may be dropped from the hawse pipe

B.Anchor should be lowered to within 2 fathoms of the bottom before being dropped

C.Scope should always be at least ten times the depth of the water

D.Scope should always be less than 5 times the depth of the water

Before letting the anchor go, you should check that the ______.

A.chain is clear

B.anchor is clear of obstructions

C.wildcat is disengaged

D.All of the above

On an anchor windlass，the wheel over which the anchor chain passes is called a______．

A.brake compressor wheel

B.devil's claw

C.wildcat

D.winch head

Prior to magnetic particle inspection of anchor chain，the chain should be ______．

A.Degaussed

B.Demagnetized

C.Soaked

D.Sandblasted

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

The length of chain between the anchor and the end of the pendant line is called the ______．

A.Pigtail chain

B.Thrash chain

C.Crown chain

D.Wear chain