单项选择题
A.axial loads B.firing loads C.inertia loads D.centripetal loads
For most diesel propulsion and generator engines, the o...
单项选择题For most diesel propulsion and generator engines, the over-speed trip device will stop the engine by （）
A.moving the governor control to stop B.shutting off the lubricating oil supply C.tripping the governor emergency stop lever D.shutting off the fuel supply
If a diesel engine is smoking excessively under load, t...
单项选择题If a diesel engine is smoking excessively under load, the cause could be （）
A.low exhaust back pressure B.early fuel injection in one of the cylinders C.compression pressure in one of the cylinders D.plugged injector holes
A diesel engine emits blue exhaust smoke as a result of...
单项选择题A diesel engine emits blue exhaust smoke as a result of（）
A.cold intake air B.excessive compression pressure C.excessive cylinder lubrication D.a light load
