When the air charge contacts with the cylinders and pistons and mixes with the residual gases, it will（）

A、increase in temperature

B、lose its energy partly

C、expand and do work

D、begin to be compressed

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更多“When the air charge contacts with the cylinders and pistons and mixes with the residual gases, it will（）”相关的问题

第1题

[单选题] The term diesel engine scavenging means（）

A、delivering more air into the cylinder than it would normally receive during an ordinary charging process B、forcing the products of combustion out of the cylinder with the fresh air charge C、collecting the air charge at the cleaner D、combustion and expansion of hot gas

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第2题

[单选题] When used in conjunction with a turbocharger, the main function of an after-cooler is to （）

A、increase the density of the cylinder air charge B、prevent turbocharger overheating C、liminate the need for a pre-cooler D、remove moisture from air compressed by the turbocharger

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第3题

[单选题] The burning of the fuel adds more heat to the air charge, causing it to expand and force the engine piston to do work on the crankshaftWhat does “it” mean in this sentence?（）

A、the burning B、the fuel C、the air charge D、the engine piston

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第4题

[单选题] In a four-stroke/cycle diesel engine, after the completion of the power stroke, the piston will move（）

A、up and draw in a fresh air charge B、down to burn off fuel C、down to compress the fuel air charge D、up and force out the exhaust gases

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第5题

[单选题] The pressurized air is usually cooled to increase the charge air （）.

A、viscosity B、density C、velocity D、electricity