单项选择题
A.electric B.heat C.mechanical D.exhaust
An overspeed safety device is usually fitted to a gener...
单项选择题An overspeed safety device is usually fitted to a generator engine for （） in the event of overspeed.
A.cutting power off the engine B.increasing the fuel pump setting C.braking the crankshaft D.stabilizing the ship speed
An interlock in the remote operating valve line stops t...
单项选择题An interlock in the remote operating valve line stops the valve （） when the engine turning gear is engaged.
A.to open B.opening C.open D.opened
An increase in load on a diesel engine results in （） of...
单项选择题An increase in load on a diesel engine results in （） of speed of the crankshaft.
A.a reduction B.an increase C.an outing D.a downwards
