單項(xiàng)選擇題An ocean towing bridle whose legs are of equal length，but too short，may（）.

A.fail to provide spring in the hawser
B.cause unequal distribution of the load to one leg
C.cause the bridle legs to jump clear of the chocks or fairleads
D.None of the above


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2.單項(xiàng)選擇題A gas-free certificate would usually be issued by a(n)（）.

A.ABS marine surveyor
B.certified marine chemist
C.port engineer
D.Coast Guard marine inspector

3.單項(xiàng)選擇題Which vessel when anchored at night，would not be required to show anchor lights? （）

A.A vessel engaged in underwater operations
B.A vessel engaged in mine clearance
C.A vessel engaged on pilotage duty
D.A vessel engaged in survey operations

5.單項(xiàng)選擇題When a marine surveyor is employed to assist in the move of a mobile offshore drilling unit，he（）.

A.becomes responsible for the safe movement of the rig
B.relieves the Offshore Installation Manager at the moment the rig is free from the bottom
C.must be designated as the person in charge of the rig
D.is a specialist who is hired to provide advice and guidance on aspects of the move