單項(xiàng)選擇題Once a scavenge fire is detected the engine （）.

A.will be speeded up
B.should be slowed down
C.must slow down
D.have to be slow down


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1.單項(xiàng)選擇題Once a fire is detected the engine should be slowed downOn no account （）.

A.the trunking should be opened up
B.should the trunking be opened up
C.the trunking should not be opened up
D.should the trunking not be opened up

2.單項(xiàng)選擇題On top of scavenging air box is mounted a strong cast iron frame for each cylinder known as（）

A.cooling jacket
B.cylinder liner
C.piston crown
D.cylinder cover

4.單項(xiàng)選擇題On opposite ends of a single shaft of a turboblower are a gas driven （）and a air compressor, which are sealed each other.

A.charge air receiver
B.scavenging air belt
C.turbine
D.air cooler