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单选题
If a crankcase explosion has occurred in a diesel engine, and the crankcase remains intact, which of following precautions should be observed?（）
A
The cylinder indicator cocks should be opened
B
The sump lube oil scavenge pump should be secured immediately
C
The explosion relief valves should be manually opened
D
The crankcase should remain unopened until the engine has cooled
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更多 “单选题If a crankcase explosion has occurred in a diesel engine, and the crankcase remains intact, which of following precautions should be observed?（）A The cylinder indicator cocks should be openedB The sump lube oil scavenge pump should be secured immediatelyC The explosion relief valves should be manually openedD The crankcase should remain unopened until the engine has cooled” 相关考题
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单选题Regarding a Diesel engine crankcase, the general arrangement and installation should preclude the possibility of （）A
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单选题In a diesel engine, blow-by is a result of combustion gases leaking into the crankcase past the （）A
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compression ringsC
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单选题Diesel engine ‘blow-by’ into the crankcase is caused by excessive ring（）A
back clearanceB
side clearanceC
gap clearanceD
taper clearance
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单选题In a diesel engine, blow-by（）A
increase exhaust back pressureB
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salinityD
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单选题If a crankcase explosion occurs in a diesel engine, you should stop the engine and（）A
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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 cooledB
ventilation system should be continued in operation for one hour for coolingC
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air when no air cleaners are usedC
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单选题When fuel enters the crankcase of a diesel engine, it （）A
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单选题For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.A
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单选题If a crankcase explosion occurs in a diesel engine, which of the listed actions should be taken?（）A
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Apply fire fighting water through the crankcase breatherC
Allow the engine to cool before opening the crankcaseD
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单选题Compared to a naturally aspirated diesel engine, a supercharged diesel engine has（）A
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