单项选择题
A.increase the governor oil pressure B.adjust the speed droop setting C.adjust the speeder spring travel D.adjust the compensating needle valve
The （） engine is used for alternators and sometimes for...
单项选择题The （） engine is used for alternators and sometimes 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
As for turbine oil, contacting with water in the form o...
单项选择题As for turbine oil, contacting with water in the form of steam will be inevitable so good （） properties will be essential.
A.defrosting B.de-oiling C.demulsifying D.dehumidifying
Precision engine bearing inserts are manufactured with ...
单项选择题Precision engine bearing inserts are manufactured with a small portion of the bearing ends extending beyond the bearing housing or capsThe installation process of these bearings requires sufficient （）.
A.overlap B.crush C.lap or lead D.protrusion
