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【单项选择题】

Gas turbines differ from steam turbines in that （）.

A、A.steam rather than gas is used to turn a shaft

B、B.vapor rather than gas is used to turn a shaft

C、C.the former uses gas to turn a shaft

D、D.the latter uses gas to turn a shaft

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更多“Gas turbines differ from steam turbines in that （）.”相关的问题
第1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2题
[单选题] Among the main propulsion units on board the ship with the same capacity, the lightest one is（）.

A、steam engine  B、steam turbine  C、gas turbine  D、diesel engine  

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第3题
[单选题] “This increase in charge air density is accomplished on most modern diesel engine types by use of exhaust gas turbo-charging, in which a turbine wheel driven by exhaust from the engine is rigidly coupled to a centrifugal type air compressor” According to this sentence, we can know that increases density（）, drives the compressor directly（）

A、a modern diesel engine；a turbine wheel  B、a modem diesel engine；exhaust gases  C、a compressor；an exhaust gas turbocharger  D、a compressor；a turbine wheel  

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第4题
[单选题] After passing through the turbine the exhaust gas is conducted out into the（）.

A、intercooler  B、compressor  C、cylinder  D、open air  

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第5题
[单选题] Propulsion of the vast majority of contemporary merchant ships (especially containerships and VLCCs) utilizes（） as prime mover.

A、gas turbine  B、diesel engine  C、steam engine  D、gasoline engine  

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第6题
[单选题] For a generator engine, after passing through the turbine the exhaust gas may be conducted out into the （）.

A、intercooler  B、open air  C、oil fired boiler  D、B and C  

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第7题
[] With（） the engine need not to be aligned with reduction gears or propeller shaft.

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

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第8题
[单选题] A(n) （） is a device which adds to the energy of a liquid or gas causing an increase in its pressure and a movement of the fluid.

A、pump  B、engine  C、turbine  D、boiler  

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第9题
[单选题] On opposite ends of a single shaft of a turboblower are a gas driven （）and a air compressor, which are sealed each other.

A、charge air receiver  B、scavenging air belt  C、turbine  D、air cooler  

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