参考答案和解析
正确答案: 把热能转换为机械功的旋转机械, 包括压气机、 加热工质的设备(如燃烧室)、 透平、 控制系统和辅助设备。
更多“燃气轮机(gas turbine)”相关问题
  • 第1题:

    Which method should be used to warm up the pump turbines prior to discharge ________.

    A.Lock the turbine rotor and slowly bleed in steam until operating temperature is reached

    B.Run the pump at high speed with the discharge valves closed

    C.Run the turbine at slow speed with the pump disconnected

    D.Shut the discharge valve and run the pump at slow speed


    正确答案:D

  • 第2题:

    燃气轮机排气温度分散度(exhaust gas temperature spread(EGT spread))


    正确答案: 燃气 透平排气口截面上的排气温度偏差, 用来间接判断高温部件的运行状态。 其中, 燃气 轮机排气温度指的是燃气透平排气口截面上的排气温度。

  • 第3题:

    燃气轮机热效率指的是()。

    • A、燃气轮机接受的热量与燃气轮机输出功率的比;
    • B、燃气轮机消耗的燃料质量流量与燃气轮机输出的功率的比;
    • C、燃气轮机接受的热量与燃气轮机燃气轮机输出的最大功率的比。

    正确答案:A

  • 第4题:

    超临界汽轮机(supercriticAl pressure turbine)


    正确答案: 主蒸汽压力高于临界压力(一般高于24.0MPa,低于28.0MPa)的汽轮机。

  • 第5题:

    燃气轮机热效率(thermal efficiency ofgas turbine)


    正确答案:燃气轮机的净能量输出与按燃料的低热值计算的燃料能量输入的百分比。

  • 第6题:

    单选题
    Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon().
    A

    cargo pump failure

    B

    blower failure

    C

    deck seal low water level

    D

    low inert gas temperature


    正确答案: C
    解析: 暂无解析

  • 第7题:

    单选题
    An exhaust gas bypass is installed on a waste heat boiler in order to ().
    A

    bypass exhaust gas at high loads to prevent excessive back pressure

    B

    bypass a portion of the exhaust gas at peak loads for better efficiency

    C

    recycle exhaust gas to the turbocharger

    D

    minimize moisture condensation in the boiler gas passages at low loads


    正确答案: B
    解析: 暂无解析

  • 第8题:

    单选题
    Diesel engine exhaust noise can be reduced in an exhaust muffler by ()
    A

    changing the direction of exhaust gas flow

    B

    increasing the exhaust gas velocity

    C

    changing the exhaust gas weight

    D

    increasing the exhaust gas static pressure


    正确答案: D
    解析: 暂无解析

  • 第9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


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    Why will a turbocharger diesel engine produce black smoke if excessive additional load is applied too quickly?()
    A

    Exhaust energy would draw excess air

    B

    The inertia of the turbocharger rotor causes a time lag which delays the turbocharger speed increase

    C

    Exhaust gas pumping losses are increased due to turbine windage

    D

    Exhaust gas back pressure falls slightly due to increased nozzle action


    正确答案: B
    解析: 暂无解析

  • 第11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


    正确答案: A
    解析: 暂无解析

  • 第12题:

    单选题
    The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products,while simultaneously cooling the inert gas,is called the().
    A

    filter

    B

    cooler

    C

    scrubber

    D

    purifier


    正确答案: B
    解析: 暂无解析

  • 第13题:

    Air Bus’ world-renowned hot-section engineering______the needs of industrial gas turbine customers.

    A.replies
    B.answers
    C.frees
    D.addresses

    答案:D
    解析:
    本题考查动词词义辨析。
      题目意为“国际知名的航空客车热区工程满足了工业燃气轮机客户的需求。” A选项“回复”,B选项“回答”,C选项“放飞”,D选项“解决,处理”。address the needs of 固定搭配,“满足……的需要”。
      

  • 第14题:

    汽轮机监视仪表(Turbine Supervisory Instruments,简称TSI)


    正确答案:是一种可靠的连续监测汽轮发电机组转子和汽缸的机械工作参数的多路监控系统,可以用于连续显示机组启停和运行中的转速、振动、差胀、偏心、轴向位移等机械参数,并在被测参数超出预设的极限值时发出报警及停机信号。同时该装置还提供用于故障诊断的各种数据。

  • 第15题:

    透平(turbine)


    正确答案:也称为涡轮, 利用工质(空气) 的膨胀产生机械动力的燃气轮机部件。

  • 第16题:

    透平进口温度(turbine inlet temperature(TIT))


    正确答案: 代表透平前流量加权平均总 温的通用术语。 因参考截面不同, 有几种不同的定义: 燃烧室出口温度、 喷嘴进口温 度、 透平转子前温度、 ISO 进口温度。 燃烧室出口温度指在燃烧室出口截面被二次空 气稀释后的燃气的流量加权平均总温; 喷嘴进口温度指来自进气缸的冷却空气加到燃 烧室出口的下游后, 进入第一级静叶的高温燃气的流量加权平均总温; 透平转子前温 度指来自第一级喷嘴和透平轮盘的冷却和密封空气加进主流高温燃气后, 第一级动叶 前的高温燃气的流量加权平均总温; ISO 进口温度指按压气机的总空气质量流量与总 燃料质量流量进行的燃烧室总热平衡计算所得出的第一级静叶前的流量加权平均温 度。

  • 第17题:

    汽轮机自启停系统Automatic Turbine Startup or Shutdown Control System(ATC)


    正确答案:根据汽轮机的热应力或其他设定参数,指挥汽轮机控制系统完成汽轮机的启动、并网带负荷或停止运行的自动控制系统。

  • 第18题:

    单选题
    The hot expanding gas rotates the blades of the exhaust turbine, thus giving out large part of its power, which drives ().
    A

    the oil separator

    B

    the fresh water generator

    C

    the compressor

    D

    fire pump


    正确答案: D
    解析: 暂无解析

  • 第19题:

    单选题
    After the initial cleaning of flue gas in an inert gas system the gas is passed through what device for final cleaning?().
    A

    Scrubber

    B

    Demister

    C

    Deck water seal

    D

    Final filter


    正确答案: B
    解析: 暂无解析

  • 第20题:

    单选题
    Which method should be used to warm up the pump turbines prior to discharge().
    A

    Lock the turbine rotor and slowly bleed in steam until operating temperature is reached

    B

    Run the pump at high speed with the discharge valves closed

    C

    Run the turbine at slow speed with the pump disconnected

    D

    Shut the discharge valve and run the pump at slow speed


    正确答案: C
    解析: 暂无解析

  • 第21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


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    Which method is used to supply inert gas from a flue gas system to the cargo tanks?()
    A

    Exhaust gas pressure from the stack

    B

    High capacity fan

    C

    Inert gas compressor

    D

    Natural aspiration


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    Gas turbines differ from steam turbines in that ().
    A

    steam rather than gas is used to turn a shaft

    B

    vapor rather than gas is used to turn a shaft

    C

    the former uses gas to turn a shaft

    D

    the latter uses gas to turn a shaft


    正确答案: D
    解析: 暂无解析