单选题The starting of a marine diesel engine is generally carried out with the assistance of （）.A compressed airB electricityC hydraulic oilD compressing air

题目
单选题
The starting of a marine diesel engine is generally carried out with the assistance of （）.
A

compressed air

B

electricity

C

hydraulic oil

D

compressing air

相似考题

1.Diesel engine electric starting motors generally require heavier duty motors and motors and operate at higher voltages than comparable starting motors for gasoline engines due to _____________.A.higher speed requiredB.flywheel-effectC.lower starting temperaturesD.higher compression pressures

2.Generally speaking, the fuel injected into a marine diesel engine combustion chamber is ignited by ______.A.spark plugsB.glow plugsC.heat of compressionD.a magneto

3.单选题The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.A principleB principalC causeD case

4.In an operating diesel engine, which of the following conditions is an indication of a leaking air starting valve?A.Noise coming from that air starting valveB.Continuous operation of the starting air compressorC.Zero air pressure in the air starting systemD.Overheated starting air pipe to the cylinder head

更多“The starting of a marine diesel engine is generally carried”相关问题

  • 第1题：

    单选题
    Turbocharging of marine diesel engine is achieved by two distinct methods, （） termed the constant pressure and the pulse system.
    A

    respectable

    B

    respectful

    C

    respective

    D

    respectively


    正确答案： D
    解析： 暂无解析

  • 第2题：

    单选题
    Generally speaking，the fuel injected into a marine diesel engine combustion chamber is ignited by（）.
    A

    spark plugs

    B

    glow plugs

    C

    heat of compression

    D

    a magneto


    正确答案： A
    解析： 暂无解析

  • 第3题：

    单选题
    Diesel engine starting difficulties due to cold intake air temperatures, can be overcome by using a/an（）
    A

    increase in starting air pressure

    B

    increase in lube oil viscosity

    C

    compression expansion device

    D

    jacket water heater


    正确答案： A
    解析： 暂无解析

  • 第4题：

    单选题
    Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by （）
    A

    increasing the quantity of starting air

    B

    increasing the lube oil pressure

    C

    heating the engine fuel supply

    D

    heating the engine coolant


    正确答案： A
    解析： 暂无解析

  • 第5题：

    单选题
    Before a marine diesel engine is started the cylinders and pistons must be （）.
    A

    cooled to appropriate temperature

    B

    warmed up gradually to appropriate temperature

    C

    opened up and renewed

    D

    ground and polished


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    In a diesel engine, blow-by is generally the result of worn（）
    A

    valve guides

    B

    oil control rings

    C

    valve seats

    D

    compression rings


    正确答案： D
    解析： 暂无解析

  • 第7题：

    单选题
    Cold weather starting of a diesel engine may be made easier by（）
    A

    decreasing the compression ratio

    B

    using a special fuel having a high ignition temperature

    C

    increasing the starting air supply

    D

    heating the jacket water


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    A two-stroke/cycle diesel engine requires less starting air than a four-stroke/cycle diesel engine, of equal displacement, because the two-stroke/cycle diesel engine（）
    A

    has little or no internal friction

    B

    has a lower effective compression ratio

    C

    operates with scavenge air under a positive pressure

    D

    operates without energy absorbing intake and exhaust strokes


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    In heavy marine engine the practice is to drive the engine on（）which has previously been stored in starting air reservoirs.
    A

    electric motor

    B

    hydraulic motor

    C

    compressed air

    D

    turning gear


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    In an operating diesel engine, which of the following condition is an indication of a leaking air starting valve?（）
    A

    noise coming from that air starting valve

    B

    continuous operation of the starting air compressor

    C

    zero air pressure in the air starting system

    D

    overheated starting air pipe to the cylinder head


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    The highest pressure in a diesel engine cylinder normally occurs （）.
    A

    at TDC

    B

    before TDC

    C

    after TDC

    D

    during air starting


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    A six-cylinder, two-stroke/cycle diesel engine is fitted with a rotary distributing air starting systemThe speed of the rotating distributor disc is （）
    A

    one-half engine speed

    B

    the same as engine speed

    C

    twice engine speed

    D

    four times engine speed


    正确答案： B
    解析： 暂无解析

  • 第13题：

    单选题
    Stating a large propulsion diesel engine using diesel fuel during cold weather conditions can be made easier by （）
    A

    increasing the quantity of starting air

    B

    increasing the lube oil pressure

    C

    heating the engine fuel supply

    D

    heating the engine jacket water


    正确答案： A
    解析： 暂无解析

  • 第14题：

    单选题
    One of the purposes for water cooling the exhaust manifold in marine diesel engine is to （）
    A

    reduce lube oil temperature

    B

    raise exhaust temperature reduce

    C

    excessive heating of engine room

    D

    reduce load on cooling water pump


    正确答案： C
    解析： 暂无解析

  • 第15题：

    单选题
    Diesel engine cylinder head test cocks are used to（）
    A

    check cylinder lubrication prior to starting engine

    B

    connect exhaust gas analyzers to determine engine efficiency

    C

    pressure test cylinder heads to check for leaks

    D

    remove moisture accumulations from cylinder prior to starting


    正确答案： D
    解析： 暂无解析

  • 第16题：

    单选题
    Diesel engine electric starting motors generally require heavier duty motors and motors and operate at higher voltages than comparable starting motors for gasoline engines due to（）
    A

    higher speed required

    B

    flywheel-effect

    C

    lower starting temperatures

    D

    higher compression pressures


    正确答案： A
    解析： 暂无解析

  • 第17题：

    单选题
    Lubricating oil is supplied to the crank-pin bearings in a marine diesel engine by （）.
    A

    internal crankshaft passages

    B

    immersion in oil

    C

    splash lubrication

    D

    injection lubrication


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    The following preparations are essential for any （） of marine diesel engine before it may be started.
    A

    doing

    B

    make

    C

    turn

    D

    operating


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    A large two-stroke/cycle direct reversing diesel engine is to be reversedPrior to the admission of starting air you must （）
    A

    line up the engine fore restarting with light diesel oil

    B

    reposition the fuel injection cam

    C

    change the intake and exhaust valve cam positions

    D

    place the starting cam in the intermediate position


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    Which of the listed pre-start procedures should be carried out prior to starting a crosshead type diesel engine after an overhaul?（）
    A

    Pre-lube cylinders with hand cranks

    B

    Open all air space drain cocks

    C

    Open all indicator valves

    D

    All of the above


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    When starting air is admitted, a diesel engine turns over very slowly without firingThe cause may be （）
    A

    an obstruction in an cylinder

    B

    water accumulation in some engine cylinders

    C

    low starting air pressure

    D

    low scavenge air pressure


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    Fresh water is used for the cooling of cylinder jackets and （） of the marine diesel engine.
    A

    cylinder covers

    B

    lubricating space

    C

    crosshead

    D

    exhaust manifold


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    The diesel engine must be started before it can run by it self For this purpose （） has to be used.
    A

    a starting system

    B

    the starting air

    C

    a starting operation

    D

    A, B and C


    正确答案： C
    解析： 暂无解析

相关内容