Dehydration may occur jf there is a shortage of water____________

A.decrease only

B.increase only

C.decrease slightly then returned to original speed

D.increase slightly then returned to original speed

Diesel engine air start valve timing is controlled by________.

A.engine operating speed

B.an air manifold

C.a hydraulic distributor

D.individual cams and valve gear

A.one half crankshaft speed in a two-stroke cycle diesel engine

B.crankshaft speed in a two-stroke cycle diesel engine

C.two times crankshaft speed in a two-stroke cycle diesel engine

D.one-fourth times crankshaft speed in a four-stroke cycle diesel engine

A.increase the governor oil pressure

B.adjust the speed droop setting

C.adjust the speeder spring travel

D.adjust the compensating needle valve

Why a gearbox is needed in a ship driven by a medium-speed diesel engine？ .

A.To reduce the main engine speed

B.To increase the main engine speed

C.To govern the main engine speed

D.To fix the propeller shaft

In a four-stroke/cycle diesel engine, the camshaft rotates at _____.

A.twice the crankshaft speed

B.half the crankshaft speed

C.the same speed as that of the crankshaft

D.a speed independent of that of the crankshaft

A.one-half engine speed

B.the same as engine speed

C.twice engine speed

D.four times engine speed

A reduction in load on a diesel engine results in () of speed of the crankshaft

A.a reduction

B.an increase

C.a downwards