單項選擇題A mooring line leading 45°to the keel，used to check forward or astern movement of a vessel，is called a（）.

A.spring line
B.warp line
C.bow line
D.breast line


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1.單項選擇題A look-out should report objects sighted using（）.

A.true bearings
B.magnetic bearings
C.gyro bearings
D.relative bearings

2.單項選擇題A lookout can leave his station（）.

A.at the end of the watch
B.at any time
C.ONLY when properly relieved
D.15 minutes before the end of the watch

4.單項選擇題A helmsman receives the command Right 15 degrees rudder. The helmsman’s IMMEDIATE reply should be（）.

A.Aye Aye Sir
B.Right 15 degrees rudder
C.Rudder is right 15
D.No reply is necessary，just carry out the order

5.單項選擇題“How do you read?” “I read you four”（）.

A.excellent
B.bad
C.fair
D.good