On a diesel engine equipped with a hydraulic speed control governor, hunting in many cases can be corrected by adjusting the______.A.accumulator spring compressionB.balance pistonC.compensating(补偿) needle valveD.proportional piston
On a diesel engine equipped with a hydraulic speed control governor, hunting in many cases can be corrected by adjusting the______.
A.accumulator spring compression
B.balance piston
C.compensating(补偿) needle valve
D.proportional piston
相关考题：
If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will .A.have a larger than normal dead bandB.produce excessive speed response to a load changeC.respond slowly to any change in engine loadD.stabilize engine speed at the new governor setting
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
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
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
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
Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger? .A.Reduce engine speed to idle before removing the filterB.Soak the dirty filter in kerosene onlyC.Blow out the air inlet with compressed airD.Cover the air inlet after removing the filter
单选题If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will （）Ahave a larger than normal dead bandBproduce excessive speed response to a load changeCrespond slowly to any change in engine loadDstabilize engine speed at the new governor setting
单选题Adjustments to the compensating needle valve in a hydraulic governor should be made with the engine at （）Amaximum power at a normal loadBmaximum power and load under normal conditionsChalf speed and normal temperatureDnormal operating temperature without a load
单选题Load control on a diesel engine is accomplished by （）.Aregulating the speed of the turbochargerBrotating the fuel injector pump plungerCregulating the speed of the fuel oil transfer pumpDchanging engine timing
单选题The purpose of the compensating adjustment used in a diesel engine hydraulic governor is to （）Acompensate for low oil levelBincrease governor promptnessCprevent governor huntingDlimit engine load
单选题For most diesel propulsion and generator engines, the over-speed trip device will stop the engine by （）Amoving the governor control to stopBshutting off the lubricating oil supplyCtripping the governor emergency stop leverDshutting off the fuel supply
单选题What is the best way of stopping an over-speeding diesel engine?（）ADisconnect the battery cables from the starting motorBDrain the hydraulic fluid from the governor sumpCBlock the flow of cooling air to the radiatorDSecure the fuel supply and block the air intake
单选题With one or more cylinders out of operation, the engine speed must be reduced because（）Ain such cases, the air supply is no longer optimal, the thermal load will be higherBgovernor hunting will occurCtorsional vibrations as other mechanical vibrations may occurDall of the above are correct
单选题The device used to limit engine torque at various engine speeds is called a （）Aspeed limiting governorBvariable speed governorCconstant speed governorDload limiting governor
单选题To correct a hunting problem in a main propulsion diesel engine hydraulic governor, you should （）.Aincrease the governor oil pressureBadjust the speed droop settingCadjust the speeder spring travelDadjust the compensating needle valve
单选题If a main propulsion diesel engine hunts excessively at idle speed, you should （）Aadjusts the idle speed controlBdrain and flushes the governor and replace the oilCadjusts the compensating needle valve
单选题Defective governor in a diesel engine may lead to （）.Asmoky exhaustBstarting failureCignition relayDover speed
单选题Increasing the load on an engine equipped with a constant speed mechanical governor, will cause the engine speed to initially （）.AincreaseBdecreaseCfluctuateDremain constant
单选题On a diesel engine equipped with a hydraulic speed control governor, hunting in many cases can be corrected by adjusting the （）Aaccumulator spring compressorBbalance pistonCcompensating needle valveDproportional piston
单选题Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger?（）AReduce engine speed to idle before removing the filterBSoak the dirty filter in kerosene onlyCBlow out the air inlet with compressed airDCover the air inlet after removing the filter
单选题Fuel injection uses the jet pump system and a Woodward type hydraulic （） is used to control engine speed.AcontrollerBgovernorCinstrumentDapparatus
单选题A diesel engine is equipped with an isochronous hydraulic governorA decrease in load will cause the engine speed to （）Adecrease onlyBincrease onlyCdecrease slightly then returned to original speedDincrease slightly then returned to original speed
单选题Friction developing between the moving parts of a governor, governor linkage and control valve will cause the governor to （）.Areact with insufficient speed droopBfail to react to small speed changesChave excessive sensitivity to small speed changesDremain in the neutral position
单选题Which of the following adjustments is always required whenever the diesel engine governor oil has been drained and renewed?（）Aspeed droopBcompensationCidle speed settingDload limit control
单选题On a diesel engine equipped with an isochronous governor, if the “speed droop” control is reduced to the “zero” setting, the engine （）Aspeed will drop drastically with any increase in loadBwill stop due to zero fuel supplyCwill stall upon application of loadDspeed will remain fairly constant despite load changes
单选题A device which functions to bring a diesel engine to a full stop to protect it from damage is known as a/an （）Atorque limiterBover-speed tripCover-speed governorDload limit governor
单选题The hydraulic （） is used to control engine speed.AmotorBpumpCgovernorDcapstan