单选题If a diesel engine has been stopped because of piston seizure due to severe overheating, the crankcase（）Ainspection covers should not be opened until the engine has cooledBventilation system should be continued in operation for one hour for coolingCscavenge pump should be immediately secured to prevent loss of lube oilDexplosion covers should be opened slightly to provide extra ventilation
单选题
If a diesel engine has been stopped because of piston seizure due to severe overheating, the crankcase（）
A
inspection covers should not be opened until the engine has cooled
B
ventilation system should be continued in operation for one hour for cooling
C
scavenge pump should be immediately secured to prevent loss of lube oil
D
explosion covers should be opened slightly to provide extra ventilation
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