The pistons are cooled by （） oil from the forced lubrication.

A、being given

B、giving

C、supplying

D、being supplied

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更多“The pistons are cooled by （） oil from the forced lubrication.”相关的问题

第1题

[单选题] Piston cooling fins are located（）

A、atop the piston crown B、beneath the piston crown C、at the base of the piston skirt D、inside the cylinder liner cooling water jacket

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第2题

[单选题] As to the piston cooling, of the following, which statement is not true?（）

A、Because the piston is exposed to very high temperature, it must be cooled B、The lower the piston cooling temperature is, the better it is C、Both water and lube oil can be used as coolant D、One of the piston cooling methods is vibration cooling, with better effect

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第3题

[单选题] The piston crown employs the usual jet-shaker principle with an arrangement of cooling bores in the crown so that the surface temperatures of the crown are moderate with a very even distribution（）

A、water cooling B、oil cooling C、air cooling D、combined cooling

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第4题

[单选题] Trunk type diesel engine pistons are effectively cooled when heat is（）

A、radiated through the engine block B、transferred to water cooled cylinder walls C、conducted through the piston crown D、transferred to escaping exhaust gases

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第5题

[单选题] Trunk-type diesel engine pistons are most effectively cooled by heat（）

A、conducted through the engine block B、conducted to water cooled cylinder walls C、conducted through the piston crown D、loss to escaping exhaust gases

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第6题

[单选题] Around the combustion chamber, all the main components are to give low thermal strains and the smallest, circumferentially symmetric deformations for good sealing between piston rings and liner（）

A、drill cooled B、hole cooled C、tube cooled D、bore cooled

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第7题

[单选题] Diesel engine piston seizure can be caused by （）

A、poor cooling of cylinder walls B、improper cooling of the piston C、insufficient piston lubrication D、all of the above

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第8题

[] On engines having oil cooled pistons the lubricating oil pre-heater must be put into operation and the rate of heating so （） that the temperature of the piston cooling oil returns are 32℃ to 35℃ over a period of at least two hours.

A、A.slow B、B.quick C、C.arranged D、D.high