单选题Most troubles likely to occur with marine diesel engine can, if located in time, be remedied with no difficulty and many can be （）if the engine is maintained with a high sense of responsibility to the people on the part of the motormen and engineers.A

题目
单选题
Most troubles likely to occur with marine diesel engine can, if located in time, be remedied with no difficulty and many can be （）if the engine is maintained with a high sense of responsibility to the people on the part of the motormen and engineers.
A

found out

B

eliminated

C

avoided

D

lowered

相似考题

1._____ the engines, the diesel engine is ____ used engine on boardA.Between / more commonlyB.Among / the most commonlyC.Between / not more commonlyD.Among / not the most commonly

2.Persistent knocking in one cylinder of an eight cylinder diesel engine would MOST likely be caused by______.A.using fuel oil with low cetane numberB.a badly worn piston pinC.a loose flywheel keyD.a loose bed plate bolt

3.Which of the listed classes of fire would most likely occur in the engine room of a vessel?A.Classes A and BB.Classes B and CC.Classes C and DD.Classes A and D

4.One of the factors limiting the amount of toad which can be put on a modem marine diesel engine is the_______.A.governor sensitivityB.exhaust temperatureC.fuel injection pressureD.speed of the cam shaft

更多“Most troubles likely to occur with marine diesel engine can,”相关问题

  • 第1题：

    Fires of which class would most likely occur in the engine room of a vessel ________．

    A.Classes A and B

    B.Classes B and C

    C.Classes C and D

    D.Classes A and D


    正确答案：B

  • 第2题：

    单选题
    A diesel engine is turned at normal cranking speed, but fails to fireThis can occur from （）
    A

    low lube oil temperature

    B

    low starting air temperature

    C

    air in the fuel injection

    D

    water in the starting air system


    正确答案： A
    解析： 暂无解析

  • 第3题：

    单选题
    As a heat engine,（） energy is the source of power by which the diesel engine can be operated.
    A

    electric

    B

    heat

    C

    mechanical

    D

    exhaust


    正确答案： D
    解析： 暂无解析

  • 第4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5题：

    单选题
    Which of the following conditions is most likely to occur when unburned fuel contaminates the crankcase of a diesel engine?（）
    A

    Lube oil is diluted and its viscosity is reduced

    B

    Sulfuric acid is formed

    C

    Bearings become pitted ad immediately fail

    D

    Valve stems develop sludge deposits


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    Which of the listed classes of fire would most likely occur in the engine room of a vessel?（）
    A

    Classes A and B

    B

    Classes B and C

    C

    Classes C and D

    D

    Classes A and D


    正确答案： B
    解析： 暂无解析

  • 第7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8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9题：

    单选题
    One of the factors limiting the amount of load which can be put on a modern marine diesel engine is the （）
    A

    governor sensitivity

    B

    exhaust temperature

    C

    fuel injection pressure

    D

    speed of the can shaft


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    A diesel engine cranks properly during starting but immediately stallsWhich of the following systems is most likely at fault?（）
    A

    Hydraulic starting

    B

    Electric starting

    C

    Ignition

    D

    Fuel


    正确答案： A
    解析： 暂无解析

  • 第11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12题：

    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

    principle

    B

    principal

    C

    cause

    D

    case


    正确答案： D
    解析： 暂无解析

  • 第13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
    Which of the following operating conditions can occur when shims are removed from the joint between the foot of a marine type diesel engine connecting rod and the bearing box?（）
    A

    Decreased connecting rod bearing clearance

    B

    Increased connecting rod bearing clearance

    C

    Decreased compression ratio

    D

    Increased compression ratio


    正确答案： C
    解析： 暂无解析

  • 第16题：

    单选题
    Which of the listed conditions will occur if a diesel engine exhaust valve is leaking?（）
    A

    Loss of compression for that cylinder

    B

    Misfiring or rough running

    C

    Damage to the valve

    D

    All of the above


    正确答案： C
    解析： 暂无解析

  • 第17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18题：

    单选题
    In a marine diesel engine the oil sump is （）.
    A

    just below the crankcase

    B

    the oil cup for the exhaust valve

    C

    the pan for collecting drain fuel oil

    D

    oil circulating pump


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    If a diesel engine runs roughly, which of the systems listed is most likely to be at fault?（）
    A

    Fuel

    B

    Lubricating

    C

    Cooling

    D

    Ignition


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    （） the engines, the diesel engine is（） used engine on board.
    A

    Between；more commonly

    B

    Among；the most commonly

    C

    Between；not more commonly

    D

    Among；not the most commonly


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    （）uses one or two high pressure pumps for all the cylinders with one more standby, while（）have a separate high-pressure pump for each cylinder.
    A

    A common rail engine；conventional engines

    B

    A conventional engine；common rail engines

    C

    A marine diesel engine；most other engines

    D

    A two-stroke engine；four-stroke engines


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    “This increase in charge air density is accomplished on most modern diesel engine types by use of exhaust gas turbo-charging, in which a turbine wheel driven by exhaust from the engine is rigidly coupled to a centrifugal type air compressor” According to this sentence, we can know that increases density（）, drives the compressor directly（）
    A

    a modern diesel engine；a turbine wheel

    B

    a modem diesel engine；exhaust gases

    C

    a compressor；an exhaust gas turbocharger

    D

    a compressor；a turbine wheel


    正确答案： A
    解析： 暂无解析

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