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 airB increasing the lube oil pressureC heating the engine fuel supplyD heating the engine jacket wat

题目
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

相似考题

1.In a main propulsion turbocharged diesel engine, the speed of the turbocharger varies according to the _____.A.governor droopB.speeder spring tensionC.fuel rack lagD.load on the engine

2.The Chief and 3rd Engineers went below，changed the fuel to diesel oil and reduced the engine to slow ahead．This sentence implies all those below except that ________ ．A.the Engine was not on slow ahead before Chief and 3rd Engineers went downB.the Engine was using diesel oil before Chief and 3rd Engineers went downC.the Engine was using fuel oil before Chief and 3rd Engineers went downD.the Chief and 3rd Engineers went into the Engine Room to operate the Engine

3.单选题On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measured by using a/an （）A dial indicatorB outside caliperC bridge gaugeD tram rod

4.The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.A.large conical springsB.compressed air pressureC.hydraulic pressureD.exhaust gas pressure

参考答案和解析
正确答案： A
解析： 暂无解析
更多“Stating a large propulsion diesel engine using diesel fuel d”相关问题

  • 第1题：

    单选题
    A supercharged diesel engine when compared to a similar naturally aspirated diesel engine, will develop an increase in （）
    A

    ignition lag

    B

    engine horsepower

    C

    lube oil system pressure

    D

    specific fuel consumption


    正确答案： D
    解析： 暂无解析

  • 第2题：

    单选题
    Telescopic pipes to the piston of a large slow-speed main propulsion diesel engine are designed to prevent （）.
    A

    excessive crankcase pressure

    B

    excessive lube oil temperature

    C

    contamination of the lube oil by water

    D

    contamination of the cooling water by lube oil


    正确答案： C
    解析： 暂无解析

  • 第3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4题：

    单选题
    The power developed by a large slow-speed main propulsion diesel engine is dependent upon the （）
    A

    quantity of air it takes in and retains in the cylinders during a given time period

    B

    proportion of trapped air that is utilized in the combustion process

    C

    thermodynamic efficiency of the engine cycle

    D

    all of the above


    正确答案： B
    解析： 暂无解析

  • 第5题：

    单选题
    Which of the conditions listed could cause the cylinder relief valves on a large, low-speed, propulsion diesel engine to lift?（）
    A

    Plugged injector nozzles

    B

    Excessive fuel injection

    C

    Very late injection timing

    D

    Incorrect crankshaft clearance


    正确答案： B
    解析： 暂无解析

  • 第6题：

    单选题
    Operating a propulsion diesel engine at less than 30% of designed normal load for prolonged periods will result in （）.
    A

    decreased fuel consumption per brake horsepower

    B

    more complete cylinder scavenging

    C

    extended valve life

    D

    carbon formation on combustion chamber surfaces


    正确答案： B
    解析： 暂无解析

  • 第7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8题：

    单选题
    Large, two-stroke/cycle, main propulsion, diesel engine cylinders can be successfully pressure charged during normal operation, by using the （）.
    A

    exhaust gas temperature system

    B

    exhaust load system

    C

    constant or pulse pressure system

    D

    constant volume system


    正确答案： B
    解析： 暂无解析

  • 第9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10题：

    单选题
    Significant retardation of a diesel engine fuel injection timing will result in （）
    A

    smoother engine operation

    B

    advanced fuel ignition

    C

    increased fuel economy

    D

    reduced engine power


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    To determine the main bearing clearance of a propulsion diesel engine, you should measure the main bearing shell using a ball anvil outside micrometer and measure the crankshaft journal using a/an （）
    A

    telescoping

    B

    ring ‘snap’ gauge

    C

    inside vernier caliper

    D

    outside micrometer


    正确答案： A
    解析： 暂无解析

  • 第12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

  • 第13题：

    单选题
    While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?（）
    A

    Manually trip the over-speed device

    B

    Interrupt the fuel flow to the engine

    C

    Disengage the safety interlock

    D

    Slide the camshaft to the neutral position


    正确答案： B
    解析： 暂无解析

  • 第14题：

    单选题
    For most diesel propulsion and generator engines, the over-speed trip device will stop the engine by （）
    A

    moving the governor control to stop

    B

    shutting off the lubricating oil supply

    C

    tripping the governor emergency stop lever

    D

    shutting off the fuel supply


    正确答案： D
    解析： 暂无解析

  • 第15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16题：

    单选题
    In order to start a large, low-speed, main propulsion diesel engine on high viscosity fuel after an extended shutdown, the （）
    A

    fuel must be preheated

    B

    intake air should be preheated

    C

    lube oil outlet temperature should be increased 20℃ above normal

    D

    none of the above


    正确答案： B
    解析： 暂无解析

  • 第17题：

    单选题
    In order to reverse the rotation of a two-stroke/cycle loop scavenged, direct reversing, propulsion diesel engine, the cam positions must be changed for the （）.
    A

    starting air and fuel pumps

    B

    piston cooling pumps

    C

    exhaust valves

    D

    all of the above


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    What color exhaust will be exhibited when a slow speed two-stroke/cycle main propulsion diesel engine, designed to operate on light and heavy fuel oil, is operated on insufficiently preheated heavy fuel oil?（）
    A

    White

    B

    Black

    C

    Blue

    D

    Clear


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    In a large, slow-speed, main propulsion diesel engine, which of the parts listed is under tension when the engine is running?（）
    A

    Bed plate

    B

    Column

    C

    Entablature

    D

    Tie rod


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    A large, low-speed, main propulsion diesel engine uses sea water to directly cool the （）.
    A

    cylinder heads

    B

    exhaust valves

    C

    scavenging air

    D

    injectors


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    A large, low-speed, crosshead, main propulsion diesel engine using residual fuel oils must have a cylinder oil having a （）
    A

    low TBN value

    B

    high alkaline reserve

    C

    low flash point

    D

    high pour point


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
    A

    Spark plug

    B

    Heat of compression

    C

    Carburetor

    D

    Glow plug


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by （）.
    A

    large conical springs

    B

    compressed air pressure

    C

    hydraulic pressure

    D

    exhaust gas pressure


    正确答案： D
    解析： 暂无解析

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