单选题If a diesel engine were running at 20% overload with a smoky exhaust, you should（）Astop the engine immediately to prevent damageBincrease lube oil pressureCslow the engine allowing it to gradually coolDdecrease the cooling water it temperature to the water jacket
单选题
If a diesel engine were running at 20% overload with a smoky exhaust, you should（）
A
stop the engine immediately to prevent damage
B
increase lube oil pressure
C
slow the engine allowing it to gradually cool
D
decrease the cooling water it temperature to the water jacket
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