单选题The governor of a generator engine is to ().Amake the engine stopBregulate the timing of camshaftsCmake the rpm stabilize at any required valueDmake the engine run at nearly constant speed
单选题
The governor of a generator engine is to ().
A
make the engine stop
B
regulate the timing of camshafts
C
make the rpm stabilize at any required value
D
make the engine run at nearly constant speed
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相关考题:
Which of the units listed is used to combust waste in the engine room?A.BoilerB.IncineratorC.Generator
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
A governor automatically controls engine speed by regulating ___ .A.fuel supplyB.firing orderC.engine loadD.oil level
A generator is prevented from becoming motorized by the use of a/an ______.A.over-speed tripB.reverse power relayC.back pressure tripD.governor controls
An over-speed safety device is usually fitted to a generator engine for ___ in the event of over-speed.A.stabilizing the ship speedB.increasing the fuel pump settingC.braking the crankshaftD.cutting power off the engine
单选题When a ship is entering to shallow water, ship resistance will be increased and the speed of main engine reduced.Due to the function of the governor, the main engine will()Areduce fuel feedingBincrease fuel feedingCkeep original fuel feedingDbe overspeed
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() are commonly used in mechanical-hydraulic governor(调速器) to sense engine speeds.ABulbsBBulksCFlyweightsDFlywheels
单选题Defective governor in a diesel engine may lead to ().Asmoky exhaustBstarting failureCignition relayDover speed
单选题The load limitation of governor should be reduced when ship navigating at sea, the main reason is to()Aprevent the diesel engine surgingBprevent governor from being damaged because of swingCreduce the probability of the crank shaft being torsional vibrated and resonatedDprevent the main engine being overload or overspeed
单选题The load sharing characteristics of two diesel generator operating in parallel are mostly dependent on their governor ().Aload limit settingsBidle speed settingsCspeed limit settingsDspeed droop settings
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The frequency of an AC generator is adjusted by means of the ()Amain alternator field rheostatBexciter field rheostatCprime mover governor controlDequalizing reactor
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During an engine room watch if immediate action is necessary to ensure safety of the ship its machinery and crew ()Athe chief engineer must be informed at firstBthe captain must be informed at firstCit must be taken by the duty engineerDthe generator engine must be stopped
单选题Maximum horsepower of a diesel engine is attained ().Awhen the engine RPM is pulled down by overloadBat rated engine RPMCat 95 % of rated engine RPMDat 95 % of a properly adjusted governor RPM with the engine under full load
单选题A diesel generator has just been paralleled with an AC turbo-generator, but the load can not be properly divided.This could be caused by()Aan incorrect diesel generator governor speed droop adjustmentBa faulty reverse power relay within the main circuit breaker assemblyCunsynchronized isochronous load distribution adjustmentsDa different speed setting on each unit
单选题Since the burning or combustion takes place within the engine itself, the engine is known as ().Aa fire -tube boilerBan internal combustion engineCan external combustion engineDan internal combustion generator
单选题The overspeeding of the diesel engine driving an electric generator could cause ().Alow voltage trip to tripBreverse power trip to tripCdamage to windingsDexcessive exhaust temperatures
单选题Overspeed of the diesel engine driving an electric generator could cause().Alow voltage tripBreverse power tripCdamage to windingsDexcessive exhaust temperatures
单选题The ability of the governor to prevent fluctuations in engine speed is termed ().AsensitivityBstabilityCpromptnessDspeed droop