单项选择题
A.heavy oil B.lube oil C.fuel oil D.diesel
The two-stroke cycle begins with the piston coming up f...
单项选择题The two-stroke cycle begins with the piston coming up from the bottom of its stroke, with scavenge ports in the sides of the cylinder being ().
A.shut B.closing C.opened D.closed
The term medium speed diesel engine is currently taken ...
单项选择题The term medium speed diesel engine is currently taken to mean an engine with an operating rotational speed of () rpm.
A.below 300 B.above 1200 C.between 300 to 1200 D.below 1200
The term () refers to one complete sequence of operatio...
单项选择题The term () refers to one complete sequence of operations required to produce power in an engine.
A.diesel engine B.stroke C.cycle D.compression ratio