单项选择题
A.land B.skirt C.crown D.plate
To correct a hunting problem in a main propulsion diese...
单项选择题To correct a hunting problem in a main propulsion diesel engine hydraulic governor, you should （）.
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
