Question 80Motor Plants - QMED
70% to passIf 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 cooled
Bscavenge pump should be immediately secured to prevent loss of lube oil
Cventilation system should be continued in operation for one hour for cooling
Dexplosion covers should be opened slightly to provide extra ventilation
AI Explanation
The correct answer is A) inspection covers should not be opened until the engine has cooled. When a diesel engine experiences piston seizure due to severe overheating, the crankcase can become pressurized. Opening the inspection covers before the engine has fully cooled could result in a sudden release of that pressure, which could be dangerous. It's important to allow the engine to cool down gradually to prevent any potential explosions or injuries. The other options are incorrect as they do not properly address the safety concerns associated with a seized, overheated diesel engine.
Related Questions
Q134:Which of the following reasons represents why the designed compression ratio of ... Q21:As it applies to the combustion process associated with diesel engines, what is ... Q31:In a closed cooling water system, which of the following problems can cause the ... Q84:According to the illustrated main engine cooling water systems drawing, which la... Q110:In a diesel engine, a leaking exhaust valve can cause _______________.
Ready to test your knowledge?
Take a Motor Plants - QMED Practice ExamOfficial Resources