A、on the power stroke
B、on the exhaust stroke
C、at the end of the power stroke
D、at the start of the intake stroke
更多“If a four-stroke/cycle diesel engine is started by injecting air into the cylinder, the pistons receiving the charge of starting air must be（）”相关的问题
A、the same indicated horsepower as a four-stroke/cycle engine B、twice the indicated horsepower as a four-stroke/cycle engine C、one half indicated horsepower as a four-stroke/cycle engine D、one power stroke for every two crankshaft revolutions
A、most critical in a four-stroke cycle diesel engine B、most critical in a two-stroke/cycle diesel engine C、most critical in a four-stroke/cycle diesel engine if it is turbocharged D、of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine
A、The direction of pressure on the journal in four-stroke engine is continuously B、positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engine C、four-stroke engines usually utilize a heavier grade of oil than tow-stroke engines D、Low-stroke engines usually consume less lube oil than four-stroke engines
A、a single, long-stroke, slow-speed, turbocharged, two-stroke diesel engine B、a single, long-stroke, medium-speed, turbocharged, four-stroke diesel engine C、two medium-speed, turbocharged, four-stroke diesel engines D、a variable-speed AC generator
A、two strokes of the piston B、four strokes of the piston C、one revolution of the crankshaft D、four revolutions of the crankshaft
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