單項(xiàng)選擇題The device used to limit engine torque at various engine speeds is called a （）

A.speed limiting governor
B.variable speed governor
C.constant speed governor
D.load limiting governor


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1.單項(xiàng)選擇題A fuel leak occurs in the high pressure fuel piping between the injection pump and fuel nozzleThis requires immediate repair because of the （）

A.high cost of fuel
B.serious fire hazard
C.possibility of pollution
D.poor combustion which will occur in that cylinder

2.單項(xiàng)選擇題Lube oil accumulating in the cooling water system of a diesel engine will result in （）

A.lube cooler failure
B.poor heat transfer
C.mechanical lubricator failure
D.camshaft seizure