单选题How does the engine adjust itself to different formulas of fuel?A By piping in more oxygen for ethanol.B By sensing the amount of oxygen in a car’s exhaust.C By burning in a less-than-optimal mode.D By stopping and checking the fuel tank.

题目
单选题
How does the engine adjust itself to different formulas of fuel?
A

By piping in more oxygen for ethanol.

B

By sensing the amount of oxygen in a car’s exhaust.

C

By burning in a less-than-optimal mode.

D

By stopping and checking the fuel tank.

相似考题

1.In the experiment, the burning inside the bottle can___.A. equalize the air pressure inside and outsideB. make a seal in the neck of the bottleC. finish up the oxygen inside the bottleD. produce more oxygen inside the bottle

2.How does foam extinguish an oil fire ?______.A.By cooling the oil below the ignition temperatureB.By removing the fuel souce from the fireC.By excluding the oxygen from the fireD.By increasing the weight of the oil

3.单选题How does foam extinguish an oil fire?（）A By cooling the oil below the ignition temperatureB By removing the fuel source from the fireC By excluding the oxygen from the fireD By increasing the weight of the oil

4.Using an inert gas system on a tanker has which advantage（s）________．A.Provides for faster loadingB.Lowers oxygen content in the tankC.Provides better fuel economyD.All of the above

更多“单选题How does the engine adjust itself to different formulas of fuel?A By piping in more oxygen for ethanol.B By sensing the amount of oxygen in a car’s exhaust.C By burning in a less-than-optimal mode.D By stopping and checking the fuel tank.”相关问题

  • 第1题：

    单选题
    Burning fuel with a high sulfur content in a diesel engine will （）
    A

    increase thermal efficiency

    B

    cause clogging of the fuel system

    C

    increase the ability of the engine to start in cold weather

    D

    produce corrosion in the cylinder and exhaust system at low loads


    正确答案： C
    解析： 暂无解析

  • 第2题：

    单选题
    The consistent burning of fuel oil with a high sulfur content in a diesel engine will result in （）
    A

    clogged fuel injection pumps

    B

    increased cylinder liner wear

    C

    intake valve stem corrosion

    D

    varnish deposit on pistons


    正确答案： C
    解析： 暂无解析

  • 第3题：

    单选题
    A practical way of checking for excessive fuel injection in one cylinder of an operating diesel engine is to （）
    A

    feel the high pressure fuel line

    B

    check the cylinder exhausts for white smoke frequently

    C

    check the cylinder exhaust temperature

    D

    isolate each cylinder and inspect the injector


    正确答案： A
    解析： 暂无解析

  • 第4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5题：

    单选题
    Besides heat, fuel, and oxygen, which of the following is necessary for a fire to exist?（）
    A

    Chain reaction

    B

    Thermal action

    C

    Chemical occlusion

    D

    Pyrotechnical reaction


    正确答案： C
    解析： 暂无解析

  • 第6题：

    单选题
    The best method of extinguishing a class A fire is to（）.
    A

    remove oxygen from the area

    B

    cool fuel below ignition temperature

    C

    smother with CO2

    D

    smother fire with foam


    正确答案： D
    解析： 暂无解析

  • 第7题：

    单选题
    When the incinerator is stopped, which of the following is wrong?（）
    A

    After stopping supplying sludge oil, the value and pipe should be flushed by flushed by diesel oil and the incinerator continue burning for 10 minutes

    B

    Close auxiliary burner firstly and then close main burner

    C

    After stopping fuel, restoring the position of main fuel supply valve

    D

    Stop blower as soon as stopping supplying fuel oil


    正确答案： B
    解析： 暂无解析

  • 第8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9题：

    单选题
    Which of the following machinery space operations is required to be logged in the Oil Record Book?（）
    A

    Ballasting or cleaning of fuel oil tanks

    B

    Shifting suction of main fuel pump to reserve fuel oil tank

    C

    Changing out sprayer plates to adjust for steam demand

    D

    Daily inspection of engine room bilges


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    If the engine does start on air, but combustion does not immediately begin, the cause may not be （）.
    A

    low compression

    B

    failure of the fuel pump to discharge fuel

    C

    incorrect timing of fuel pump

    D

    turning gear being still on


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    The main purpose of changing main engine to electronic controlled is not to（）
    A

    control fuel injection time more precisely

    B

    control fuel injection rate more precisely

    C

    meet the environmental requirements

    D

    meet high engine speed requirements


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    A viscosity regulator used for an engine is usually provided in order to （） for an engine burning heavy fuel oil.
    A

    regulate the fuel supply

    B

    maintain a constant fuel viscosity at the fuel valves

    C

    maintain efficient cooling

    D

    alter the fuel density


    正确答案： D
    解析： 暂无解析

  • 第13题：

    单选题
    The burning of fuel oil in a diesel engine having a high sodium content, will cause （）
    A

    corrosion and grooving of exhaust valves

    B

    corrosion and gumming of the fuel injection pump

    C

    salt deposits in the exhaust manifold

    D

    slag deposits in the fuel injection equipment


    正确答案： D
    解析： 暂无解析

  • 第14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15题：

    单选题
    The burning of the fuel adds more heat to the air charge, causing it to expand and force the engine piston to do work on the crankshaftWhat does “it” mean in this sentence?（）
    A

    the burning

    B

    the fuel

    C

    the air charge

    D

    the engine piston


    正确答案： D
    解析： 暂无解析

  • 第16题：

    单选题
    When the fuel oil is burning in the combustion chamber, it （）.
    A

    gives up large amount of heat

    B

    gives off large amount of heat

    C

    gives up large amount of steam

    D

    gives off large amount of steam


    正确答案： B
    解析： 暂无解析

  • 第17题：

    单选题
    If the engine does not start on air, it may be due to （）
    A

    low compression of the fuel pumps

    B

    incorrect timing of fuel pumps

    C

    the starting air valves stuck

    D

    air-locks in fuel oil pipeline


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    What is required in addition to the heat，fuel，and oxygen of the fire triangle to have a fire?（）
    A

    Electricity

    B

    Chain reaction

    C

    Pressure

    D

    Smoke


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    The ignition quality of a fuel oil is an important operational consideration because it（）
    A

    indicates the amount of abrasive material in the fuel

    B

    affects the starting ability of a cold engine

    C

    determines the amount of fuel penetration engine

    D

    affects the compression ratio of an operating engine


    正确答案： B
    解析： 暂无解析

  • 第20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


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    While testing a cargo tank，your oxygen indicator reads 25% oxygen in the tank. You would then （）.
    A

    enter the tank safely

    B

    suspect the accuracy of the reading

    C

    ventilate the tank

    D

    test for nitrogen


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    When the load is increased on a turbocharged diesel engine, the amount of increased air supplied by the turbocharger will（）
    A

    lag behind the increased fuel supplied to the engine

    B

    enter the engine along with the increase in the fuel

    C

    enter the engine before the increased fuel supply

    D

    leave the turbocharger as a negative pulse


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    The ash content of a fuel oil is significant to the operating engineer because it （）
    A

    is an indication of the amount of noncombustible material present in the oil

    B

    indicates the quantity of energy released by burning a unit amount of the fuel

    C

    is useful for determining proper atomization temperatures

    D

    reflects the overall thermal efficiency of the fuel oil service system


    正确答案： D
    解析： 暂无解析

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