燃气模块(FUEL GAS MODULE)中有哪些主要设备?

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燃气模块(FUEL GAS MODULE)中有哪些主要设备?


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2.共用题干 Natural Gas1 Natural gas is produced from reservoirs deep beneath the earth's surface. It is a fossil fuel(矿物燃 料),meaning that it is derived from orgaiiic material buried in the earth millions of years ago.The main corn- ponent of natural gas is methane(甲烷).2 The popularity and use of clean natural gas have increased dramatically over the past 50 years as pipeline infrastructure(基础设施)has been installed to deliver it conveniently and economically to millions of residential,commercial and industrial customers worldwide.Today,natural gas service is available in all 50 states in the U.S.,and is the leading energy choice for fueling American homes and industries.More than 65 million American homes use natural gas.In fact,natural gas is the most economical source for home energyneeds,costing one-third as much as electricity.In addition to heating homes,much of the gas used in the United States is used as a raw material to manufacture a wide variety of products,from paint,to fibers for clothing,to plastics for healthcare,computing and furnishings.Natural gas is also used in a significant number of new electricity-generating power plants.3 Natural gas is one of the safest and cleanest fuels available. It emits(发出)less pollution than other fossil fuel sources. When natural gas is burned , it produces mostly carbon dioxide(二氧化碳)and water va- por一the same substances emitted when humans breathe.Compared with some other fossil fuels,natural gas emits the least amount of carbon dioxide into the air when combusted(燃烧)一making natural gas the clea-nest burning fossil fuel of all.4 The United States consumes about one一third of the world's natural gas output,making it the largest gas-consuming region in the world.The U.S.Department of Energy Information Administration forecasts that natural gas demand will grow by more than 50 percent by 2025.5 There are huge reserves of natural gas beneath the earth's surface.The largest reserves of natural gas can be found in Russia , West and North Africa and the Middle East. LNG(液化天然气)has been pro- duced domestically and imported in the United States for more than four decades.Today,the leading import- ers of LNG are Japan,Korea,France and Spain.Paragraph 3__________A:Popularity and Use of Natural GasB:Natural Gas Reserves and SupplyC:Natural Gas PricesD:Clean Fuel of ChoiceE:Disadvantages of Natural GasF:Natural Gas Consumption

更多“燃气模块(FUEL GAS MODULE)中有哪些主要设备?”相关问题
  • 第1题:

    停业登记在CTAIS中有哪些操作模块?


    正确答案:有登记部门情况、发票部门情况、征收部门情况、稽查部门情况、审批意见五个操作模块。

  • 第2题:

    重启7600设备某块板卡的命令是()

    • A、module X poweroff
    • B、set module x off
    • C、hardware module x reset
    • D、hw-module module X reset

    正确答案:D

  • 第3题:

    锌锅中有哪些主要设备?


    正确答案: 有沉没辊、稳定辊、和气刀及气刀边缘挡板等。

  • 第4题:

    燃气轮机(gas turbine)


    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。

  • 第5题:

    外部设备有哪些主要功能?可以分为哪些大类?各类中有哪些典型设备?


    正确答案: 外部设备的主要功能有数据的输入、输出、成批存储以及对信息的加工处理等。
    外部设备可以分为五大类:输入输出设备、辅助存储器、终端设备、过程控制设备和脱机设备。
    其典型设备有键盘、打印机、磁盘、智能终端、数/模转换器和键盘-软盘数据站等。

  • 第6题:

    轨道电路室内设备主要包括哪些模块?


    正确答案: 主要包括:放大滤波板、发送板、解调板、接收一板、接收二板、代码板、继电器板、报文转换板、方向转换板。

  • 第7题:

    在桥梁施工中有哪些主要的施工设备?


    正确答案: a.各种常备式结构,如万能杆件、贝雷梁等;
    b.测量设备,如经纬仪、测距仪等;
    c.基础施工设备,如打桩机、挖土机;
    d.砼施工设备,如拌和机、输送泵、振捣设备等;
    e.预应力施工设备,如各类张拉千斤顶、锚具等;
    f.运输安装设备,如汽车、缆索吹吊机、架桥机等;
    g.专用施工设备,如移动模架、沥青摊铺机、压路机等。

  • 第8题:

    单选题
    Using an inert gas system on a tanker has which advantage(s)? ()
    A

    Provides for faster loading

    B

    Lowers oxygen content in the tank

    C

    Provides better fuel economy

    D

    All of the above


    正确答案: B
    解析: 暂无解析

  • 第9题:

    单选题
    In a diesel engine, offers the heat energy directly(); works as working medium and changes the heat energy to mechanical energy()
    A

    the burning of the fuel; medium shaft

    B

    fuel spray; fresh air

    C

    fuel; fuel spray

    D

    the burning of the fuel; the burned gas mixture


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    Exhaust temperature increases in all cylinders, the possible cause may be() (1) increased scavenging air temperature (2) air in fuel pumps and fuel valves (3) fouling of air and gas passages
    A

    (1)+(2)

    B

    (1)+(3)

    C

    (2)+(3)

    D

    (1)+(2)+(3)


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    To successfully reduce an excessively high diesel engine exhaust gas temperature, you should ().
    A

    reduce the engine driven fuel pump outlet pressure

    B

    retard the fuel injector timing to reduce power

    C

    increase the fuel rack setting

    D

    reduce the load on the engine


    正确答案: D
    解析: 暂无解析

  • 第12题:

    单选题
    Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an().
    A

    Orsat apparatus

    B

    flame safety lamp

    C

    Halide torch

    D

    combustible gas indicator


    正确答案: A
    解析: 暂无解析

  • 第13题:

    SDH设备的主要功能模块有哪些?


    正确答案: 1、线路接口;
    2、支路接口;
    3、交叉矩阵;
    4、定时电路;
    5、主控单元。

  • 第14题:

    下列哪些模块属于FibreChannel互联模块?()

    • A、GBE2c switch
    • B、Brocade 4GB SAN switch
    • C、Catalyst Blade Switch 3020
    • D、HP 4GB Path-through module

    正确答案:B,D

  • 第15题:

    CMVP(Cryptographic Module Validation Program)评估需要为模块改进提供帮助


    正确答案:正确

  • 第16题:

    当两个或两个以上的可燃气探测器探测到50%高爆限浓度的可燃气时,DCS屏幕上显示()

    • A、GAS is Lower 
    • B、GAS is Hight
    • C、GAS is Highter  
    • D、其它

    正确答案:C

  • 第17题:

    探测器探测到20%低爆限的可燃气时,DCS屏幕上显示()

    • A、GAS is Lower
    • B、GAS is Hight
    • C、GAS is Highter
    • D、其它

    正确答案:A

  • 第18题:

    下列哪些模块属于Fibre Channel 互联模块?()

    • A、GBE2c switch
    • B、Brocade 4GB SAN switch
    • C、Catalyst Blade Switch 3020
    • D、HP 4GB Path-through module

    正确答案:B,D

  • 第19题:

    燃气前置系统有哪些主要设备?其作用分别是什么?


    正确答案: 1.分离器:为两级过滤/分离装置,垂直布置。第一级用惯性分离除去较大的液滴和颗粒,第二级是一只聚凝过滤器,燃气从内侧经过,外侧流出,聚凝在过滤器外侧的液滴在重力作用下收集到收集箱,可以去除直径在0.01~4μm的雾滴。
    2.性能加热器:由两台管壳式热交换器串联而成。燃气从壳侧流过,管内为给水通道。加热天然气温度至185℃,提高机组性能。
    3.启动用电加热器:在性能加热器未投运时加热天然气至52℃,保证天然气的过热度,防止天然气析烃。
    4.洗涤器:由多路惯性分离器组成,用于去除液态和固态物质,为燃气进入燃机的最后一道分离器。

  • 第20题:

    问答题
    轨道电路室内设备主要包括哪些模块?

    正确答案: 主要包括:放大滤波板、发送板、解调板、接收一板、接收二板、代码板、继电器板、报文转换板、方向转换板。
    解析: 暂无解析

  • 第21题:

    单选题
    The (auto)ignition temperature is that temperature atwhich().
    A

    no spark or flame is required to ignite gas or vapor

    B

    a fuel begins to give off explosive vapors

    C

    a fuel if ignited will continue to burn

    D

    a 1% mixture of the fuel with air will explode


    正确答案: B
    解析: 暂无解析

  • 第22题:

    单选题
    During the fuel injection period, fuel pressure must exceed cylinder gas pressure to ().
    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


    正确答案: D
    解析: 暂无解析

  • 第23题:

    问答题
    燃气模块(FUEL GAS MODULE)中有哪些主要设备?

    正确答案: 入口滤网、燃气辅助截止阀(VS4-1)、燃气速比阀(VSR-1)、气体释放阀(VA13-15)、燃气控制阀(VGC-1、VGC-2、VGC-3)、D5清吹阀(VA13-1、VA13-2)、PM4清吹阀(VA13-5、VA13-6)及有关电磁阀、压力开关等。
    解析: 暂无解析