单选题Vessels having main engines arranged for air starting are to be provided with at least （）A one automatic drain serving both containersB two air starting containers of approximately equal sizeC one control air container and one starting air containerD o

题目
单选题
Vessels having main engines arranged for air starting are to be provided with at least （）
A

one automatic drain serving both containers

B

two air starting containers of approximately equal size

C

one control air container and one starting air container

D

one additional means of starting the main engine

相似考题

1.Vessels having main engines arranged for air starting are to be provided with at least__.A.one automatic drain serving both containersB.two air starting containers of approximately equal sizeC.one control air container and one starting air containerD.one additional means of starting the main engine

2.Diesel engines obtain combustion air through turbo chargers，blowers，or ______．A.Air startersB.CarburetorsC.Natural aspirationD.Air receivers

3.单选题（）are increasingly used as main engine on merchant vessels, because they have a high Hp/Weight ratio.A Slow speed diesel enginesB Medium-speed diesel enginesC Steam enginesD Gasoline engines

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“Vessels having main engines arranged for air starting are to”相关问题

  • 第1题：

    单选题
    The opening or closing of the cylinder starting valve is controlled by （）.
    A

    the starting air distributor

    B

    the cut-off valve on the air main

    C

    the main starting valve

    D

    the air bottle control valve


    正确答案： D
    解析： 暂无解析

  • 第2题：

    单选题
    The main purpose of starting the diesel engine on air briefly is（）
    A

    to inspect if the cylinder has the water leakage

    B

    to expel out the residual water/gas/oil from the cylinder

    C

    to check if fuel supply is normal

    D

    A and B


    正确答案： D
    解析： 暂无解析

  • 第3题：

    单选题
    The total starting air capacity required for reversible main engines is to be sufficient for at least （）.
    A

    six consecutive starts

    B

    eight consecutive starts

    C

    ten consecutive starts

    D

    twelve consecutive starts


    正确答案： B
    解析： 暂无解析

  • 第4题：

    单选题
    Mist detectors used on large low-speed main propulsion diesel engines monitor and check for the presence of （）.
    A

    fuel oil vapor at the sludge tank vent

    B

    unburned fuel vapors in the scavenge air receiver

    C

    lube oil vapors in the crank case

    D

    lube oil vapors in the engine room


    正确答案： C
    解析： 暂无解析

  • 第5题：

    单选题
    Fire detecting systems on merchant vessels may be arranged to sense （）.
    A

    smoke

    B

    rate of temperature rise

    C

    ionized particles

    D

    all of the above


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    The primary task of the compressed air system is to deliver the starting air necessary for （）
    A

    starting the ME

    B

    starting the emergency electric alternator

    C

    driving the main turbine

    D

    driving the turbocharger


    正确答案： A
    解析： 暂无解析

  • 第7题：

    单选题
    The booster pump, which supplies diesel oil to（） , should have a possibility of being powered by compressed air or by emergency power.
    A

    the main engines

    B

    the auxiliary engines

    C

    the emergency generator engine

    D

    the auxiliary engines and the main engine(s)


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    After finished the engine, which of valves cannot be shut off by the duty engineer?（）
    A

    fuel valve

    B

    the starting air valve

    C

    the sea chest

    D

    the main sea pump inlet valve


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    Pump up the starting air reservoirs to their maximum pressure and （）the air reservoirs and air system.
    A

    open

    B

    close

    C

    drain

    D

    vent


    正确答案： C
    解析： 暂无解析

  • 第10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11题：

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

    keep all systems in normally running

    B

    the main engine is stand-by

    C

    shut off the starting air bottle outlet valve

    D

    pay attention to the changes of the system parameters


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    When restarting a heavy fuel diesel engine that has been stopped for some time, the engine should（）
    A

    increase the starting air pressure

    B

    use a higher than normal cranking speed

    C

    increase the fuel injection pressure

    D

    use a fuel having a lower ignition temperature


    正确答案： B
    解析： 暂无解析

  • 第13题：

    单选题
    When the order （） is received from the bridge, the main air stop valve in the starting air line should be shut.
    A

    stand-by engine

    B

    full ahead

    C

    finished with engine

    D

    full away


    正确答案： D
    解析： 暂无解析

  • 第14题：

    单选题
    Which of the following may cause that an engine doesnt turn on starting air?（）
    A

    too low starting air pressure

    B

    main starting valve closed

    C

    neither A nor B

    D

    A and B


    正确答案： A
    解析： 暂无解析

  • 第15题：

    单选题
    Which of the following may lead to the engine NOT to start on air?（）
    A

    starting air pressure too high

    B

    correct timing of starting air valves

    C

    three of the six starting valves stuck

    D

    the turning gear disengaged


    正确答案： B
    解析： 暂无解析

  • 第16题：

    单选题
    Which of the following methods is used to prevent throttling of compressed air through the diesel engine air starting valves?（）
    A

    Holding the valve open for a long period

    B

    Increasing the starting air pressure used

    C

    Opening the stating air valve quickly

    D

    Reducing the starting air valve size


    正确答案： D
    解析： 暂无解析

  • 第17题：

    单选题
    Which of the following may cause that an engine doesnt run on starting air?（）
    A

    too low starting air pressure

    B

    main start valve closed

    C

    neither A nor B

    D

    A and B


    正确答案： B
    解析： 暂无解析

  • 第18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19题：

    单选题
    Starting air for auxiliary engines may be taken directly from the main reservoirs or through （）.
    A

    an auxiliary reservoir

    B

    a controlling air bottle

    C

    an emergency air compressor

    D

    a main air compressor


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    On what do you depend having the air cooler of main engine chemically washed?（）
    A

    increased air pressure differenced before and aft air cooler

    B

    reduced exhaust temperature in all cylinders

    C

    reduced temperature difference between water inlet and outlet

    D

    both A and C


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    An electric heater built into some smaller diesel engines is used to （）.
    A

    raise lube oil viscosity for easier starting in cold weather

    B

    increase air inlet temperature

    C

    increase compression ratio

    D

    increase jacket water temperature for easier starting in cold weather


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    Which of the listed types of starting systems is often used on large, low-speed, direct reversing, main propulsion diesel engines?（）
    A

    Electric

    B

    Hydraulic

    C

    Air

    D

    All of the above


    正确答案： A
    解析： 暂无解析

  • 第23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

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