單項選擇題When lowering lifeboats in heavy seas，a good practice is to rig frapping lines（）.

A.on only the forward falls
B.on only the after falls
C.with a lead of about 45 degrees to the boat
D.from the falls to the main deck of the vessel


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1.單項選擇題What term indicates the line drawn at the top of the flat plate keel（）.

A.Base line
B.Molded line
C.Designer's waterline
D.Keel line

2.單項選擇題What is TRUE about hoisting operations（）.

A.Personnel may work beneath suspended loads，as long as they are alert and wear hard hats
B.If a suspended load with no tag begins to spin，personnel should attempt to stop the spinning if the load is within reach
C.If tag lines are used to control a suspended load，they should be secured to the deck
D.Personnel not involved in the hoisting operation should be kept clear of the transfer area

5.單項選擇題The purpose of the tripping line on a sea anchor is to（）.

A.Aid in casting off
B.Direct the drift of the vessel
C.Aid in its recovery
D.Maintain maximum resistance to broaching