Fuel is admitted to a diesel engine cylinder through the ______.A.injector nozzlesB.carburetorC.exhaust portsD.intake valves

题目

Fuel is admitted to a diesel engine cylinder through the ______.

A.injector nozzles

B.carburetor

C.exhaust ports

D.intake valves

相似考题

1.If the diesel engine fuel injection timing is changed to delay the start of injection until the pistons are at top dead center, the engine will_________.A.backfire through the air intakesB.develop less power under loadC.have high firing pressuresD.lift its cylinder relief valves

2.单选题Low compression in a diesel engine can be caused by （）A clogged coolant passagesB a leaking cylinder head gasketC low fuel oil pressureD worn or broken cylinder liner sealing rings

3.单选题Which of the listed problems would be indicated by an accumulation of water in one cylinder, in addition to the crankcase of an idle diesel engine?（）A Excessive cylinder linerB water in the fuel systemC Cracked cylinder linerD Leaking lube oil cooler

4.When fuel is injected late into a diesel engine cylinder_______.A.the exhaust will be clearB.fuel consumption will be lowC.all the fuel will be burned at top dead centerD.fuel consumption will be high

参考答案和解析
正确答案：A
更多“Fuel is admitted to a diesel engine cylinder through the ______.A.injector nozzlesB.carbur ”相关问题

  • 第1题：

    单选题
    Fuel oil discharged to the diesel engine cylinder is atomized at the （）
    A

    turbocharger

    B

    injection nozzle tip

    C

    carburetor

    D

    fuel oil pump


    正确答案： B
    解析： 暂无解析

  • 第2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3题：

    单选题
    A drop in compression pressure in one cylinder of a diesel engine can be caused by（）
    A

    a leaking fuel injection nozzle

    B

    a clogged air filter

    C

    early fuel injection

    D

    burned valves


    正确答案： B
    解析： 暂无解析

  • 第4题：

    单选题
    Trunk type diesel engine pistons are effectively cooled when heat is（）
    A

    radiated through the engine block

    B

    transferred to water cooled cylinder walls

    C

    conducted through the piston crown

    D

    transferred to escaping exhaust gases


    正确答案： B
    解析： 暂无解析

  • 第5题：

    单选题
    If the diesel engine fuel injection timing is changed to delay the start of injection until the pistons are at top dead center, the engine will（）
    A

    backfire through the air intakes

    B

    develop less power under load

    C

    have high firing pressures

    D

    lift its cylinder relief valves


    正确答案： D
    解析： 暂无解析

  • 第6题：

    单选题
    The longer the ignition delay period occurs in a diesel engine, the （）.
    A

    less fuel will enter the cylinder

    B

    lower will be cylinder compression temperatures

    C

    more complete will be fuel combustion

    D

    more rapid will be the rise in combustion pressure


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    Fuel is admitted to a diesel engine cylinder through the （）.
    A

    intake valves

    B

    carburetor

    C

    exhaust ports

    D

    injector nozzles


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    Engine coolant accumulating in the diesel engine lubricating oil can result from a （）
    A

    low oil pressure

    B

    high coolant pressure

    C

    leaking fuel injector

    D

    cracked cylinder head or liner


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    In the cylinder of a diesel engine fuel is ignited by the（）
    A

    spark from a plug in the pre-combustion chamber

    B

    electrical discharge from the distributor

    C

    heat of compression within the cylinder

    D

    heat from the fuel injection nozzle


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Fuel droplets injected into a diesel engine cylinder must have adequate penetration to （）
    A

    prolong the ignition delay period

    B

    ensure the beginning of fuel injection

    C

    thoroughly utilize the air charge

    D

    allow controlled fuel combustion


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    Proper dispersion of fuel in a diesel engine cylinder is dependent upon the （）
    A

    injection pressure

    B

    shape of combustion space

    C

    turbulence in combustion space

    D

    all of the above


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    The breaking-up of fuel as it enters a diesel engine cylinder is known as（）
    A

    airification

    B

    vaporization

    C

    atomization

    D

    gasification


    正确答案： B
    解析： 暂无解析

  • 第13题：

    单选题
    The ignition of the fuel in diesel engine is caused by the （） of compression of the air previously admitted into the cylinders.
    A

    vacuum pressure

    B

    specific gravity

    C

    heat

    D

    viscosity


    正确答案： B
    解析： 暂无解析

  • 第14题：

    单选题
    When fuel is injected late into a diesel engine cylinder,（）.
    A

    the exhaust will be clear

    B

    fuel consumption will be low

    C

    all the fuel will be burned at top dead center

    D

    fuel consumption will be high


    正确答案： D
    解析： 暂无解析

  • 第15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： A
    解析： 暂无解析

  • 第16题：

    单选题
    Fuel is ignited in a diesel engine cylinder by （）
    A

    a spark plug

    B

    injectors

    C

    the heat of compression

    D

    increasing jacket water temperatures


    正确答案： A
    解析： 暂无解析

  • 第17题：

    单选题
    A change in the quality of fuel atomization by a diesel engine fuel injector would be caused by a/an （）
    A

    increase in engine speed

    B

    increase in cylinder turbulence

    C

    leaking needle valve

    D

    reduction in cylinder turbulence


    正确答案： C
    解析： 暂无解析

  • 第18题：

    单选题
    One remedy for a high firing pressure, in addition to a high exhaust temperature in one cylinder of a diesel engine, is to （）
    A

    increase scavenge air pressure

    B

    reduce fuel booster pump pressure

    C

    adjust the fuel rack

    D

    retard fuel injector timing


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    Trunk-type diesel engine pistons are most effectively cooled by heat（）
    A

    conducted through the engine block

    B

    conducted to water cooled cylinder walls

    C

    conducted through the piston crown

    D

    loss to escaping exhaust gases


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
    A

    Spark plug

    B

    Heat of compression

    C

    Carburetor

    D

    Glow plug


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    Heat for igniting the fuel oil in the cylinder of a diesel engine is generated by the （）
    A

    electronic ignition system

    B

    compression of air by the piston

    C

    friction in the fuel injector

    D

    fuel oil bearing system


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Fuel oil injected into the cylinder of a diesel engine just after the piston passes top dead center, will（）
    A

    increase engine power

    B

    increase engine load

    C

    decrease engine power

    D

    improve fuel economy


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    Turbulence in a diesel engine cylinder is of major importance in providing （）.
    A

    proper fuel metering

    B

    complete fuel/air mixing

    C

    minimal fuel penetration

    D

    proper fuel timing


    正确答案： C
    解析： 暂无解析

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