单项选择题
A.once every crankshaft revolution B.once every two crankshaft revolutions C.once every piston stroke D.twice every piston stoke
Modern marine diesel engines equipped with mechanical f...
单项选择题Modern marine diesel engines equipped with mechanical fuel injection operate on a combustion phase within the cycle which is（）
A.entirely constant pressure B.entirely constant temperature C.a combination of constant volume and constant pressure D.a combination of constant temperature and constant pressure
The over-speed trip device installed in some diesel eng...
单项选择题The over-speed trip device installed in some diesel engines is automatically actuated by（）
A.spring force B.hydraulic pressure C.centrifugal force D.mechanical linkage
The flywheel reduces speed fluctuations by （）A.maintain...
单项选择题The flywheel reduces speed fluctuations by （）
A.maintaining a constant rack setting B.storing kinetic energy C.maintaining equal exhaust pressure D.maintaining even camshaft speed
