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單項(xiàng)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

1.單項(xiàng)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(xiàng)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

3.單項(xiàng)選擇題A look-out at the bow sights an object on your port side. How many bell strokes should he sound? （）

A.One
B.Two
C.Three
D.Four

4.單項(xiàng)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(xiàng)選擇題“How do you read?” “I read you four”（）.

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