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【单选题】

A diesel engine is supercharged in order to（）

A、lower the no-load RPMs

B、provide more air for combine with the fuel

C、increase the no-load RPMs

D、provide more fuel combine with the air

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更多“A diesel engine is supercharged in order to（）”相关的问题
第1题
[单选题] Proper lubrication of the main bearing is more easily obtained in a single acting four-stroke/cycle diesel engine than in a single acting two-stroke/cycle diesel engine because （）

A、bearing pressure in a four-stroke\cycle acting single diesel engine is continually reversed  B、bearing pressure in a two-stroke\cycle single acting diesel engine is continually reversed  C、the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine  D、two-stoke/cycle diesel engines require more complicated lubrication piping  

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第2题
[单选题] The size of the exhaust valve opening is （）

A、most critical in a four-stroke cycle diesel engine  B、most critical in a two-stroke/cycle diesel engine  C、most critical in a four-stroke/cycle diesel engine if it is turbocharged  D、of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine  

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第3题
[单选题] The survival craft’s engine is fueled with（）.

A、kerosene  B、unleaded gasoline  C、diesel oil  D、liquefied gas  

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第4题
[单选题] The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.

A、principle  B、principal  C、cause  D、case  

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第5题
[单选题] （） allows the engine to be placed wherever is most suitable, as they no longer have to be aligned with reduction gearing and shafting as is the case with conventional installations.

A、Diesel engine propulsion  B、Diesel electric propulsion  C、Steam engine propulsion  D、Gas turbine propulsion  

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第6题
[单选题] In conventional systems, the injection pressure（）, while it’s（）in common rail diesel engines.

A、fluctuates with the engine speed to some extent, independent of the engine speed  B、keeps constant at all engine speed, dependent on the engine speed to some extent  C、keeps constant at all engine speed, independent of the engine speed  D、is decided by the engine speed, constant at all engine speed  

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第7题
[] A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, is commonly classed as a （）.

A、A.slow-speed diesel  B、B.medium-speed diesel  C、C.high-speed diesel  D、D.constant-speed diesel  

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第8题
[单选题] White smoke issuing from the exhaust of an auxiliary diesel engine valve opening （）

A、the engine is overloaded  B、the engine is cold  C、there is too much lube oil in the cylinders  D、the turbocharger is fouled  

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第9题
[] The diesel engine is a type of （）.

A、A.turbine engine  B、B.gas turbine  C、C.steam engine  D、D.internal combustion engine  

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第10题
[单选题] （）, so they are widely used on board ship nowadays.

A、Diesel engines have more advantages in comparison with gasoline engines  B、Diesel engines have more advantages in comparison to gasoline engines  C、Gasoline engines have more advantages in comparison with diesel engines  D、Gasoline engines have more advantages in comparison to diesel engines  

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