Before starting any diesel or gasoline engine, which of the following must be checked?____.A.Oil levelB.Flow of cooling waterC.Exhaust dischargeD.All of the above

题目

Before starting any diesel or gasoline engine, which of the following must be checked?____.

A.Oil level

B.Flow of cooling water

C.Exhaust discharge

D.All of the above

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.Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except______.A.open the indicator cocksB.supply some CYL.Oil to cylinder liner wall with lubricator (only for two stoke diesel engine)C.put the fuel handle in the "stop" positionD.pump up the air bottle

3.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

4.Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine?A.compression must be low for effective spark ignitionB.compression must be low for required horsepower and torque generationC.compression must be low to prevent pre-ignitionD.compression must be low to have effective pre-ignition

更多“Before starting any diesel or gasoline engine, which of the following must be checked?____ ”相关问题

  • 第1题：

    Before starting a gasoline engine on a motorboat，you should make sure for safety that ______．

    A.The gasoline tank is full

    B.The bilges，cabins，etc．are thoroughly ventilated

    C.You have fresh water on board

    D.Each of the above is followed


    正确答案：B

  • 第2题：

    单选题
    Before starting a gasoline engine on a motorboat，you should make sure for safety that（）.
    A

    the gasoline tank is full

    B

    the bilges，cabins，etc. are thoroughly ventilated

    C

    you have fresh water on board

    D

    Each of the above is followed


    正确答案： B
    解析： 暂无解析

  • 第3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4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5题：

    单选题
    Before starting any diesel or gasoline engine，which of the following must be checked? （）
    A

    Oil level

    B

    Flow of cooling water

    C

    Exhaust discharge

    D

    All of the above


    正确答案： A
    解析： 暂无解析

  • 第6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7题：

    单选题
    The is employed to warm up a large diesel engine before its starting（）
    A

    hot air

    B

    hot boiler water

    C

    cylinder water

    D

    hot seawater


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine?（）
    A

    compression must be low for effective spark ignition

    B

    compression must be low for required horsepower and torque generation

    C

    compression must be low to prevent pre-ignition

    D

    compression must be low to have effective pre-ignition


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    According to the relevant regulation, lifeboat should be powered by（）.
    A

    inboard diesel engine

    B

    outboard diesel engine

    C

    outboard gasoline engine

    D

    inboard gasoline engine


    正确答案： B
    解析： 暂无解析

  • 第10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11题：

    单选题
    Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except（）
    A

    open the indicator cocks

    B

    supply some CYL Oil to cylinder liner wall with lubricator (only for two stoke diesel engine)

    C

    put the fuel handle in the “stop” position

    D

    pump up the air bottle


    正确答案： C
    解析： 暂无解析

  • 第12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

  • 第13题：

    单选题
    Before starting a diesel engine, you should always（）
    A

    check the pyrometer readings

    B

    check the crankcase oil level

    C

    check the fuel oil strainers

    D

    clean the fuel system


    正确答案： B
    解析： 暂无解析

  • 第14题：

    单选题
    Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.
    A

    open the bypass line

    B

    cut in the lube oil cooler

    C

    pressurize the lube oil system

    D

    top off the expansion tank


    正确答案： C
    解析： 暂无解析

  • 第15题：

    单选题
    Which of the listed diesel engine operating conditions should be checked immediately after any diesel engine is started?（）
    A

    Exhaust temperature

    B

    Lube oil level

    C

    Lube oil pressure

    D

    Water level in the expansion tank


    正确答案： C
    解析： 暂无解析

  • 第16题：

    单选题
    As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
    A

    Exhaust temperatures

    B

    Raw water pressure

    C

    Lube oil pressure

    D

    Air box pressure


    正确答案： B
    解析： 暂无解析

  • 第17题：

    单选题
    Which one of the followings may not be checked before engine starting?（）
    A

    tank level

    B

    Various filters

    C

    Drains

    D

    seawater temperature


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    During maneuvering operations for a direct reversing large, low-speed, main propulsion diesel engine, which of the following actions is used to stop the shaft from turning prior to reversing the engine rotation?（）
    A

    Flywheel inertia

    B

    Admission of starting air

    C

    The way of the vessel

    D

    securing of fuel to the cylinders


    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 following should always be checked prior to starting a diesel engine?（）
    A

    Air filters

    B

    Fuel oil strainers

    C

    Crank case oil level

    D

    Pyrometer readings


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    Which of the following precautions must be taken if an electric immersion heater is used to keep the coolant in a diesel engine warm during the time the engine is secured?（）
    A

    The coolant temperature must be maintained at 180℃

    B

    The thermostatic bypass valves must be manually opened before the engine is started

    C

    The pressure cap must be removed while the engine is secured

    D

    Electrical power to the heater must be secured before the cooling system is drained


    正确答案： A
    解析： 暂无解析

  • 第22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23题：

    单选题
    When running a large, low-speed, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switching back over to diesel oil?（）
    A

    The diesel oil must never be allowed to mix with the heavy fuel

    B

    The temperature of the fuel from the pre–heater should be gradually reduced after switching over the three–way valve

    C

    The heating steam to the pre-heater should be secured as soon as the diesel fuel passes through the three-way valve

    D

    The heating steam must be secured before the diesel oil passes through the three-way valve


    正确答案： D
    解析： 暂无解析

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