题目内容

The( )takes a suction from the double-bottom tanks and discharges it to the settling tanks.

A. fuel oil service pump
B. general service pump
C. sump pump
D. fuel oil transfer pump

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( )high pressure pipe and injectors need to be closely matched to provide optimum fueinjection.

A. The fuel transfer pump
B. The fuel feed pump
C. The fuel injection pump
D. The fuel booster pump

In a diesel engine lube oil system, which of the following parts should be lubricated first?( )

A. Camshaft bearings.
B. Main bearings.
C. Piston crowns.
D. Cylinder walls.

Lubricating systems for diesel engines are usually designed to initially provide lube oil to theengine( )

A. camshaft bearings
B. main bearings
C. piston crowns
D. cylinder walls

Oil is supplied to the cylinder liner wall and the piston rings by means of( ) giving a carefully controlled oil feed, through injectors or quills.

A. electric magnet valve
B. common rail system
C. mechanical lubricators
D. inductors