单选题The over-speed trip device installed in some diesel engines is automatically actuated by（）A spring forceB hydraulic pressureC centrifugal forceD mechanical linkage

题目
单选题
The over-speed trip device installed in some diesel engines is automatically actuated by（）
A

spring force

B

hydraulic pressure

C

centrifugal force

D

mechanical linkage

相似考题

1.Proper lubrication of the main bearings is more easily obtained in a single acting, four-stroke/cycle diesel engine than in a tow-stroke/cycle diesel engine because________.A.The direction of pressure on the journal in four-stroke engine is continuouslyB.positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engineC.four-stroke engines usually utilize a heavier grade of oil than tow-stroke enginesD.Low-stroke engines usually consume less lube oil than four-stroke engines

2.While configuring a new adapter using cfgmgr, an administrator receives a warning message indicating that some device packages are not installed. Additionally, the adapter displays in the Defined state.Which command will resolve the issue and make the adapter available?（）A.shutdown -FrB.cfgmgr -i <lpp_source>C.mkdev -l <device_name>D.mknode /dev/<device_name>

3.A new computer is displaying the wrong amount of memory. Which of the following may be the cause？（）A、The module is installed backwards.B、A USB device is using some memory.C、An onboard video card is using some memory.D、The CPU is using some memory.

4.For most diesel propulsion and generator engines, the over-speed trip device will stop the engine byA.moving the governor control to stopB.shutting off the lubricating oil supplyC.tripping the governor emergency stop leverD.shutting off the fuel supply

更多“The over-speed trip device installed in some diesel engines”相关问题

  • 第1题：

    While configuring a new adapter using cfgmgr, an administrator receives a warning message indicating that some device packages are not installed. Additionally, the adapter displays in the Defined state. Which command will resolve the issue and make the adapter available?（）

    • A、shutdown -Fr
    • B、cfgmgr -i <lpp_source>
    • C、mkdev -l <device_name>
    • D、mknode /dev/<device_name>

    正确答案:B

  • 第2题：

    单选题
    Which of the devices listed is installed on a diesel engine to isolate some of the crankshaft vibrations caused by rotational and reciprocating forces?（）
    A

    Planetary gear set

    B

    Torsional vibration damper

    C

    Friction clutch

    D

    Air bladder clutch


    正确答案： D
    解析： 暂无解析

  • 第3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4题：

    单选题
    An over-speed trip serves to （）
    A

    stop the engine by cutting off the cooling water supply

    B

    stop the engine by closing the air intake

    C

    slow the engine but not stop it

    D

    slow the engine to half of normal load


    正确答案： A
    解析： 暂无解析

  • 第5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6题：

    单选题
    The reversing cams of some four-stroke/cycle diesel engines are brought into position by （）
    A

    sliding the camshaft along its axis

    B

    rotating the cam 180

    C

    rotating the cam followers 180

    D

    moving the idler sprockets in the drive chain


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    Proper lubrication of the main bearings is more easily obtained in a single acting, four-stroke/cycle diesel engine than in a tow-stroke/cycle diesel engine because（）.
    A

    The direction of pressure on the journal in four-stroke engine is continuously

    B

    positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engine

    C

    four-stroke engines usually utilize a heavier grade of oil than tow-stroke engines

    D

    Low-stroke engines usually consume less lube oil than four-stroke engines


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    Exhaust pipes for separate diesel engines can be combined only when （）
    A

    space limitations prevent separately run pipes

    B

    the engines are small auxiliary units

    C

    they are arranged to prevent gas backflow to each engine

    D

    a waste heat boiler is installed


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    Some medium and high-speed diesel engines require reduction gear units to provide a useful propeller speedIn most reduction gears, the bull gear（）
    A

    must churn the oil in the sump

    B

    is connected to the propeller shaft

    C

    is driven at the highest RPM

    D

    compensates for alignment variations between the engine and pinion gear


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    The overspeeding of the diesel engine driving an electric generator could cause （）.
    A

    low voltage trip to trip

    B

    reverse power trip to trip

    C

    damage to windings

    D

    excessive exhaust temperatures


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    All diesel engines are classified as（）.
    A

    four cycle

    B

    compression ignition

    C

    vacuum ignition

    D

    external combustion


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    Some diesel engines are fitted with a thermometer in the cooling water outlet from each cylinderIf the cooling water temperature from all cylinders begins to rise above normal, you should suspect （）
    A

    increase blow-by in all cylinders

    B

    incomplete combustion in all cylinder

    C

    overloading in all cylinders

    D

    insufficient fuel delivery to all cylinders


    正确答案： B
    解析： 暂无解析

  • 第13题：

    单选题
    The function of the after-cooler installed between the turbocharger and intake manifold on some diesel engine, is to （）
    A

    increase the density of the intake air

    B

    decrease turbocharger power usage

    C

    reduce exhaust gas temperature

    D

    compensate for turbocharger PRM fluctuations


    正确答案： D
    解析： 暂无解析

  • 第14题：

    单选题
    A new computer is displaying the wrong amount of memory. Which of the following may be the cause？（）
    A

    The module is installed backwards.

    B

    A USB device is using some memory.

    C

    An onboard video card is using some memory.

    D

    The CPU is using some memory.


    正确答案： A
    解析： 暂无解析

  • 第15题：

    单选题
    The over-speed trip device installed in some diesel engines is automatically actuated by（）
    A

    spring force

    B

    hydraulic pressure

    C

    centrifugal force

    D

    mechanical linkage


    正确答案： B
    解析： 暂无解析

  • 第16题：

    单选题
    An over-speed trip stops a diesel engine when the engine （）
    A

    runs out of fuel

    B

    has low lubricating oil pressure

    C

    exceeds a set maximum speed

    D

    has high cooling water temperature


    正确答案： B
    解析： 暂无解析

  • 第17题：

    单选题
    The over-speed trip installed on most diesel engine will stop the engine by shutting off the （）
    A

    water supply

    B

    fuel oil supply

    C

    lube oil supply

    D

    exhaust damper


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    （）, so they are widely used on board ship nowadays.
    A

    Diesel engines have more advantages in comparison with gasoline engines

    B

    Diesel engines have more advantages in comparison to gasoline engines

    C

    Gasoline engines have more advantages in comparison with diesel engines

    D

    Gasoline engines have more advantages in comparison to diesel engines


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    In conventional systems, the injection pressure（）, while it’s（）in common rail diesel engines.
    A

    fluctuates with the engine speed to some extent, independent of the engine speed

    B

    keeps constant at all engine speed, dependent on the engine speed to some extent

    C

    keeps constant at all engine speed, independent of the engine speed

    D

    is decided by the engine speed, constant at all engine speed


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    Some diesel engines are supercharged with a （）
    A

    slam charger

    B

    turbocharger

    C

    fuel atomizer

    D

    fuel injector


    正确答案： B
    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
    Valve cages are used on some large diesel engines to （）
    A

    reduce wear on the valve stem

    B

    permit the use of alloy valve seat materials

    C

    reduce heat transfer from the valve seat

    D

    facilitate valve removal for servicing


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    A waste heat boiler is installed on some diesel propelled vessels to （）.
    A

    provide steam for emergency propulsion

    B

    provide steam for the turbo-generator

    C

    heat the waste water tanks

    D

    steam for warming engines


    正确答案： D
    解析： 暂无解析

  • 第24题：

    单选题
    In some modern large diesel engines, which of the following is used as the support for the main bearings?（）
    A

    Bedplate

    B

    Block

    C

    Base

    D

    Sump


    正确答案： D
    解析： 暂无解析

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