题目内容

In an emergency situation, for example in the event of damage to a fresh water cooler or generator, the ( ) can be used to supply sea water to the fresh water cooling system.merely by removing the blind-flanges.

A. sea water cooler or generator
B. emergency fire fighting pump
C. fresh water pumps
D. sea water pumps

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The function of lubricating oil is to( )

A. maintain even distribution of bearing wear
B. maintain a constant oil temperature
C. maintain a pressurized fluid film between moving surfaces
D. remove entrained water

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The lube oil pump used in a diesel engine is a( ) usually.

A. volute pump
B. centrifugal pump
C. diaphragm pump
D. gear pump

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In an auxiliary diesel engine, the reason for knurling ( 压花纹) the piston skirt is to( )

A. improve skirt lubrication
B. allow for expansion
C. transmit forces evenly
D. improve the piston seal

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Crank chamber oils must have good lubricating properties and be able to resist rupture of the film separating the moving parts in order to( )

A. ensure minimum lubrication
B. ensure minimum friction losses
C. ensure proper cooling
D. keep touch with each other

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In an emergency situation, for example in the event of damage to a fresh water cooler or generator, the ( ) can be used to supply sea water to the fresh water cooling system.merely by removing the blind-flanges.

A. sea water cooler or generator B. emergency fire fighting pump C. fresh water pumps D. sea water pumps

The function of lubricating oil is to( )

The lube oil pump used in a diesel engine is a( ) usually.

In an auxiliary diesel engine, the reason for knurling ( 压花纹) the piston skirt is to( )

Crank chamber oils must have good lubricating properties and be able to resist rupture of the film separating the moving parts in order to( )

A. sea water cooler or generator
B. emergency fire fighting pump
C. fresh water pumps
D. sea water pumps