單項(xiàng)選擇題Fittings used for towing must be（）.

A.Coast Guard approved
B.stamped with maximum working loads
C.securely fastened
D.positioned exactly at the bow of the towed vessel


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1.單項(xiàng)選擇題Fire protection regulations for towing vessels require any fuel line subject to internal head pressure from fuel in the tank to（）.

A.be fitted with a positive fuel shut-off valve located at the tank
B.have a shut-off valve at the top of the tank
C.have a gate valve easily accessible in the space where the tank is located
D.have a drain cock at the lowest point in the fuel line

2.單項(xiàng)選擇題Fire protection regulations for towing vessels require all crew members to know how to perform each of these tasks EXCEPT（）.

A.start the mechanical ventilation system for the engine room
B.operate the fuel shut-off for the engine room
C.operate all fire extinguishing equipment aboard the vessel on board the vessel，including starting the fire pump
D.All of the above

3.單項(xiàng)選擇題Fire protection regulations for towing vessels allow all of these types of fuel piping，EXCEPT（）.

A.steel
B.aluminum in an aluminum-hulled vessel
C.schedule 80 fire resistant plastic pipe
D.nickel-copper，copper-nickel or annealed copper

4.單項(xiàng)選擇題Fire protection regulations apply to those towing vessels（）.

A.used only for pollution response
B.owned and operated by the US government
C.used only within a barge fleeting area
D.used only on inland waters

5.單項(xiàng)選擇題Fire protection and manning regulations for towing vessels state that the Master or person in charge must ensure that all crew members who have not participated in the drills or received the safety orientation（）.

A.receive a safety orientation or view a videotape before the vessel gets underway
B.view a videotape on safety procedures within 48 hours of reporting for duty
C.receive a safety orientation within 24 hours of reporting for duty
D.none of the above