A.at each alarm bellB.at each alarm actuatorC.near all ……

单项选择题The patrolman，while on duty on a passenger vessel，must have in his possession a(n)（）.

A.nightstick
B.flashlight
C.passenger list showing assigned berths
D.A-I fire extinguisher

单项选择题The only type of helicopter that may be refueled with the engine running and the blades turning is（）.

A.a helicopter carrying cargo only
B.a turbine-equipped helicopter
C.a Sikorsky
D.a helicopter carrying injured personnel in an emergency situation

单项选择题The most likely location for a liquid cargo fire to occur on a tanker would be（）.

A.in the midships house
B.at the main deck manifold
C.at the vent header
D.in the pumproom

单项选择题The major cause of anchor buoy pendant wire failures is（）.

A.corrosion
B.rough weather
C.defective sockets
D.mishandling

单项选择题The distance gained in the direction of the original course when you are making a turn is known as（）.

A.advance
B.drift
C.tactical diameter
D.transfer