单项选择题
A.the peak pressure in a cylinder B.the temperature of the cooling water C.the fuel consumption D.none of the above
The lower section of a piston is called the （）.A.landB....
单项选择题The lower section of a piston is called the （）.
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
