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【单选题】

The efficiency of turbocharge system is increased by fitting a charge air cooler （） the compressor.

A、inside

B、before

C、after

D、against

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更多“The efficiency of turbocharge system is increased by fitting a charge air cooler （） the compressor.”相关的问题
第1题
[单选题] Which of the following statements is true concerning the overall efficiency of air compressors?（）

A、High pressure compressors are more efficient than low pressure compressors  B、Mechanical efficiency divided by compressor efficiency will equal the overall efficiency of the compressor unit  C、Two stage compressors are generally more efficient than single stage compressors  D、The volumetric efficiency is decreased in multistage compressors  

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第2题
[单选题] The ratio of the brake horsepower to the indicate of a diesel engine is its （）

A、thermal efficiency  B、mechanical efficiency  C、brake thermal efficiency  D、volumetric efficiency  

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第3题
[单选题] What happens to the efficiency of an anchor when it is moved from sand to mud?（）

A、The efficiency increases  B、The efficiency decreases  C、The efficiency remains the same  D、The efficiency cannot be determined.  

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第4题
[] The Owners warrant that at the date of delivery and throughout the period of service the hull，machinery and equipment of the ship is in a thoroughly efficient state，with a full and efficient（）of Master，Officers and Crew.

A、A.complement  B、B.supplement  C、C.deployment  D、D.settlement  

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第5题
[] Charging-air pressure increases if there is incorrect combustion and drop in the （） of the diesel engine.

A、A.machine efficiency  B、B.machinery efficiency  C、C.mechanical efficiency  D、D.mechanics efficiency  

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第6题
[单选题] The rate of pressure rise during the period following fuel ignition in a diesel will result in （）

A、valve overlap  B、volumetric efficiency  C、turbulence of the air change  D、fuel efficiency  

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第7题
[单选题] The efficient burning of fuel in a diesel engine is dependent upon the （）

A、temperature of compression  B、atomization of the fuel  C、penetration of the fuel  D、all of the above  

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第8题
[] Which of the factors listed has the greatest effect on the mechanical efficiency of a diesel engine?（）

A、A.temperature of the intake air  B、B.friction within the engine  C、C.mechanical condition of the supercharger  D、D.mechanical condition of the turbocharger  

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第9题
[单选题] Which of the listed operating conditions would have the greatest effect on the volumetric efficiency of an operating reciprocating air compressor?（）

A、The density of the air entering the compressor  B、The temperature of the air entering the compressor  C、The designed rotating speed of the compressor  D、A leaking head gasket  

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第10题
[单选题] When working with lumber, wire and staples are not desirable to be used because（）.

A、they are not subjected to cause trouble  B、they are difficult to handle this kind of cargo  C、the efficiency of separating is raised  D、the efficiency of loading is greater  

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