单项选择题
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
The （） of the main shaft should be measured with a （）.A...
单项选择题The （） of the main shaft should be measured with a （）.
A.clearance；calipers B.sinking；bridge gauge C.diameter；bridge gauge D.clearance；lead wire
