單項選擇題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


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題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

2.單項選擇題Air in the fuel lines of a diesel engine can cause （）

A.ignition failure
B.oxygen corrosion of the fuel lines
C.the pistons to seize
D.blue smoke

3.單項選擇題The condensers located in various stages of a flash evaporator are cooled by（）

A.distillate
B.seawater
C.brine
D.air

4.單項選擇題Air in the fuel lines to the fuel injection nozzles of a diesel engine will cause the engine to （）

A.burn excessive amounts of lube oil
B.overheat without smoking
C.operate with reduce power or stop
D.run away without load

5.單項選擇題The pressure in an operating diesel engine cylinder continues to rise for a short period after the piston passes top dead center as a result of the （）

A.expansion of the combustion gases
B.exhaust and intake valves just closing
C.maximum compression is just being attained
D.fuel injection occurring at that point and combustion begins