单项选择题
A.the same as B.similar to C.separated from D.different from
Opening of the cylinder （） will admit compressed air in...
单项选择题Opening of the cylinder （） will admit compressed air into the cylinder.
A.safety valve B.indicator cock C.blow-down valve D.start valve
Once all cylinders are firing regularly, （） is shut off...
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
Once a scavenge fire is detected, fuel should be shut o...
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
