单项选择题
Once all cylinders are firing regularly, （） is shut off.
A.the exhaust valve
B.the starting air
C.the inlet valve
D.the fuel oil
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相关考题
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单项选择题
Once a scavenge fire is detected, fuel should be shut off from the affected cylinders and cylinder lubrication increased （） the risk of seizure.
A.to protect
B.to guard
C.to maximize
D.to minimize -
单项选择题
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 -
单项选择题
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
