单项选择题
A.specific gravity B.viscosity C.acid value D.calorific value
The （） of the diesel oil must not exceed 120 degree Fah...
单项选择题The （） of the diesel oil must not exceed 120 degree Fahrenheit.
A.temperature B.pressure C.acid value D.viscosity
The （） is not properly set thus causing either advanced...
单项选择题The （） is not properly set thus causing either advanced or retarded firing.
A.piston B.fuel injection pump C.crankshaft D.oil can
The （） engine is used for alternators and some times fo...
单项选择题The （） engine is used for alternators and some times for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm.
A.four-stroke B.two-stroke C.slow speed D.reversible
