单选题Nylon rope is often used in the makeup of a towline because it（）.A floatsB stretchesC handles easilyD resists rot

In towing，chocks are used to ______.

A.protect the towline from chafing

B.secure the end of the towline on the tug

C.stop off the towline while retrieving it

D.absorb shock loading on the towline

A whipping is ______．

A.a messenger

B.a stopper for nylon line

C.a U-bolt for securing a cargo whip to the winch drum

D.turns of twine around a rope end

The catenary in a towline is ______.

A.a short bridle

B.the downward curvature of the hawser

C.another name for a pelican hook

D.used to hold it amidships

Which statement is TRUE about the use of a“gob rope”________．

A.The gob rope is a mooring line for tying up lighters for working cargo alongside a vessel anchored in an open roadstead

B.The gob rope is used to secure the towline aft over the centerline of a tug

C.The gob rope is a line hung over a vessel's side to assist in boarding

D.The gob rope is a rope used in mooring a vessel to a buoy

An advantage of nylon rope over manila rope is that nylon rope ______.

A.can be used in conjunction with wire or spring-lay rope

B.can be stored on decks exposed to sunlight

C.can hold a load even when a considerable amount of the yarns have been abraded

D.gives audible warning of overstress whereas manila does not

A natural fiber rope can be ruined by dampness because it may ______.

A.rot

B.shrink

C.stretch

D.unlay