單項(xiàng)選擇題

In a diesel engine, a positive displacement type blower is usually （）

A.gear drive by the engine
B.driven by an exhaust gas turbine
C.driven by a camshaft
D.driven by separate motor

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If you suspect a diesel engine is misfiring due to air leakage into the fuel system, you should begin looking for the leak at the （）

A.fuel line connections to cylinder injection valves
B.gasket surfaces of the fuel oil filters
C.discharge fitting of the fuel injector pumps
D.suction side of the fuel oil tran

單項(xiàng)選擇題

Stating a large propulsion diesel engine using diesel fuel during cold weather conditions can be made easier by （）

A.increasing the quantity of starting air
B.increasing the lube oil pressure
C.heating the engine fuel supply
D.heating the engine jacket water