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【单选题】

When fuel is injected late into a diesel engine cylinder,().

A、the exhaust will be clear

B、fuel consumption will be low

C、all the fuel will be burned at top dead center

D、fuel consumption will be high

更多“When fuel is injected late into a diesel engine cylinder,().”相关的问题
第1题

A、quantity of fuel injected is decreased  B、quantity of fuel injected will always be increased  C、start of injection is advanced  D、duration of injection will always be greater  

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第2题

A、Quantity of fuel injected tends to be decreased  B、Quantity of fuel injected will always be increased  C、Start of injection tends to be advanced  D、Duration of injection will always greater  

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第3题

A、the starting air supply is cut off and fuel is injected into the cylinders  B、the fuel feeding is cut off and the turning gear is put in  C、the starting air supply is cut off and turning gear is taken out  D、the electric blower is shut down and fuel is injected into the cylinders  

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第4题

A、A.The process begins after TDC  B、B.The process ends before TDC  C、C.When the piston is near to the TDC the fuel injection ends  D、D.None of the above is true  

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第6题

A、ignition may be delayed  B、fuel economy is not affected  C、exhaust gas temperature will be unchanged  D、the exhaust will be clear  

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第7题

A、ensure penetration and distribution of the fuel in the combustion chamber  B、ensure the needle valve is flushed clean during each injection  C、prevent combustion gas blowback into the open needle valve  D、prevent reflected pressure waves when the needle valve closes  

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第8题

A、caused by retarded injection timing  B、caused by a mechanical defect in one cylinder  C、caused by high fuel injection pressures  D、normal for these conditions  

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第9题

A、stored in a common fuel line  B、pumped by the injection pump  C、at low pressure  D、already atomized  

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