单选题Poor combustion in a diesel engine can be caused by （）.A high compression pressureB low intake air temperatureC low exhaust pressureD high scavenge air pressure

题目
单选题
Poor combustion in a diesel engine can be caused by （）.
A

high compression pressure

B

low intake air temperature

C

low exhaust pressure

D

high scavenge air pressure

相似考题

1.Combustion knock occurring in a diesel engine can be caused by _____.A.low coolant temperatureB.insufficient fuelC.high ambient temperatureD.carbon buildup on the injector tips

2.单选题Black smoke exhausting from an operating diesel engine is an indication of poor combustion which may be caused by （）A water in the fuelB insufficient fuel for combustionC clogged air intake passagesD burning lubricating oil

3.单选题White smoke exhausting from a diesel engine can be caused by a （）A high combustion temperatureB high compression pressureC cracked cylinder linerD fuel with a high vanadium content

4.单选题White smoke exhausting from a diesel engine can be caused by （）A low combustion temperatureB a leaking fuel nozzle check valveC late fuel injectionD plugged oil-scraper ring hole

参考答案和解析
正确答案： B
解析： 暂无解析
更多“Poor combustion in a diesel engine can be caused by （）.”相关问题

  • 第1题：

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

    a leaking fuel injector nozzle

    B

    a clogged air filter

    C

    excessively early fuel injection

    D

    malfunctioning valves


    正确答案： A
    解析： 暂无解析

  • 第2题：

    单选题
    Poor combustion in a diesel engine can be caused by （）.
    A

    high compression pressure

    B

    low intake air temperature

    C

    low exhaust pressure

    D

    high scavenge air temperature


    正确答案： D
    解析： 暂无解析

  • 第3题：

    单选题
    Incomplete combustion in a running diesel engine can cause piston rings to become stuck as a result of （）
    A

    residual carbon deposits

    B

    lube oil viscosity breakdown

    C

    uneven heat expansion of the rings

    D

    uneven heat expansion of the piston


    正确答案： B
    解析： 暂无解析

  • 第4题：

    单选题
    High diesel engine cooling water temperatures can be caused by （）.
    A

    air in the cooling system

    B

    an overhauled water pump

    C

    correct amount of coolant

    D

    no air in the cooling system


    正确答案： C
    解析： 暂无解析

  • 第5题：

    单选题
    In a modern internal combustion diesel engine, the load carrying part of the engine is referred to as the（）
    A

    bedplate or base

    B

    sump or oil pan

    C

    cylinder block

    D

    frame


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    Combustion knock occurring in a diesel engine can be caused by （）
    A

    low coolant temperature

    B

    insufficient fuel

    C

    high ambient temperature

    D

    carbon buildup on the injector tips


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    Sludge formation in a diesel engine lube oil system is caused by（）
    A

    carbonization of oils from the combustion chambers

    B

    emulsions of lube oil and water

    C

    coagulation of unburned fuel below the piston rings

    D

    all of the above


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    Diesel engine piston seizure can be caused by （）
    A

    poor cooling of cylinder walls

    B

    improper cooling of the piston

    C

    insufficient piston lubrication

    D

    all of the above


    正确答案： B
    解析： 暂无解析

  • 第9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10题：

    单选题
    Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
    A

    a shortened ignition delay period

    B

    a lean fuel/air mixture

    C

    excess fuel in the combustion chamber

    D

    rapid vaporization of injected fuel droplets


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    Excessive lubricating oil consumption in a running diesel engine can be caused by （）
    A

    clogged lube oil piping

    B

    excessive valve-guide clearance

    C

    high lube oil viscosity

    D

    low lube oil temperature


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    A dark exhaust from a running diesel engine can be caused by （）
    A

    late ignition

    B

    water in the fuel

    C

    high compression temperature

    D

    starting valve stuck open


    正确答案： A
    解析： 暂无解析

  • 第13题：

    单选题
    High exhaust temperature and black smoke exhausting from an auxiliary diesel engine can be caused by （）.
    A

    engine overload

    B

    low combustion temperature

    C

    plugged fuel nozzle holes

    D

    excessive compression pressure


    正确答案： C
    解析： 暂无解析

  • 第14题：

    单选题
    Low compression pressure in a diesel engine can be caused by（）
    A

    improperly seating intake valves

    B

    leaking cylinder liner seal rings

    C

    late fuel injection timing

    D

    carbon deposits on the piston


    正确答案： B
    解析： 暂无解析

  • 第15题：

    单选题
    Faulty operation of diesel engine fuel injection nozzles can be directly caused by （）.
    A

    water in the fuel oil supply

    B

    excessive fuel nozzle holder cooling

    C

    a distorted fuel spray pattern

    D

    leakage past the plunger into the oil drain


    正确答案： B
    解析： 暂无解析

  • 第16题：

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

    a leaking fuel injector nozzle

    B

    a clogged air filter

    C

    excessively early fuel injection

    D

    malfunctioning valves


    正确答案： D
    解析： 暂无解析

  • 第17题：

    单选题
    The diesel engine is a type of （）.
    A

    turbine engine

    B

    gas turbine

    C

    steam engine

    D

    internal combustion engine


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    High diesel engine cooling water temperatures can be caused by （）.
    A

    a worn water pump

    B

    not enough coolant

    C

    air in the cooling system

    D

    all of the above


    正确答案： C
    解析： 暂无解析

相关内容