The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor ______.A.load limit settingsB.idle speed settingsC.speed limit settingsD.speed droop settings
The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor ______.
A.load limit settings
B.idle speed settings
C.speed limit settings
D.speed droop settings
相关考题:
When the prime movers of two paralleled generators are equipped with mechanical-hydraulic governors, and are operating within their designed range, the unit with the least amount of speed droop will .A.pick up more of any increase in loadB.pick up less of any increase in loadC.share an equal amount of any increase in loadD.drop an equal amount of any decrease in load
The division of kilowatt load between two paralleled alternators is determined by theA.amount of field excitation of the leading machineB.load-speed characteristics of the governorsC.amount of field excitation to the lagging machineD.type of alternator
Diesel engines driving alternators operating in parallel must maintain a set frequency regardless of load changes. The governor characteristic used to accomplish this is known as _______.A.actuationB.sensitivityC.compensationD.promptness
Which BGP option i s required when load sharing over multiple equal - bandwidth parallel links from a single CE router to a single ISP router over eBGP?() A. eBGP MultipathB. eBGP MultihopC. BGP SynchronizationD. Public AS numbers
Which BGP option i s required when load sharing over multiple equal - bandwidth parallel links from a single CE router to a single ISP router over eBGP?()A、eBGP MultipathB、eBGP MultihopC、BGP SynchronizationD、Public AS numbers
Which two of the following statements are true about HSRP load sharing?() (Choose two)A、It is achieved by using more than one HSRP group.B、It is done in regards to either round robin or weight basis.C、It is used to offload the active router in a certain HSRP group.D、Single group HSRP is used to achieve more efficient link utilization.E、The return traffic is influenced by HSRP load sharing configuration.
单选题The operating diesel generators will have their exhaust temperatures, cooling water and lubricating oil temperatures and pressures () in much the same way as for the main engine.Ato be keptBloggedCchangedDhas remained
单选题The division of the kilowatt load between two AC generators operating in parallel is controlled by the settings and characteristics of the ().Avoltage regulatorsBfield rheostatsCreverse power relaysDprime mover governors
单选题Which is a function of the voltage regulators used with AC generators?()ATo cut out generators when they are no longer requiredBTo cut in additional generators automatically as requiredCTo divide the KW load equally between generators operating in parallelDTo divide reactive current between generators operating in parallel
单选题The load between two steam-driven alternators operating in parallel may be adjusted by varying ()Athe speed of the alternatorsBthe field strength of the machinesCthe power factor of the alternatorsDsteam supply to the prime movers
单选题Diesel engines driving alternators operating in parallel must maintain set frequency regardless of load changesThe governor characteristic used to accomplish this is known as ()AactuationBsensitivityCcompensationDthrust shaft
单选题Engines, which are to be run in parallel have governors specially adapted for the same(), about 4% to obtain basic load sharing.Aspeed settingsBspeed droopsCspeed dropsDspeed changes
单选题When the prime movers of two paralleled generators are equipped with mechanical- hydraulic governors, and are operating within their designed range, the unit with the least amount of speed droop will ().Apick up more of any increase in loadBpick up less of any increase in loadCshare an equal amount of any increase in loadDdrop an equal amount of any decrease in load
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Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?()ASensitivityBPowerCSpeed droopDCompensation
单选题On commonly used ships,if two A√Cgenerators are operated in parallel, the load is distributed evenly by ().Avarying the D-Cexciter voltageBvarying the reluctance of the air gapCregulating the speed of prime moverDshorting out part of the armature windings
单选题One result of operating a diesel engine at light load with excessively low cooling water temperature is a/an ()Adecrease in ignition lagBincrease in fuel economyCreduction in lube oil viscosityDincrease in cylinder misfiring
单选题An individual injection pump is designed for variable beginning and constant ending of injectionFor diesel engines operating at constant speeds, the start of injection will()Aadvance as the load increasesBretard as the load increaseCremain unchanged regardlessDalways occur at top dead center
单选题An increase in the load on a turbocharged diesel engine operating at constant speed will result in an increase in ()AexhaustBair box pressureCbrake main effective pressureDall of the above
单选题When two DC generators operate in parallel, they are protected against motorizing by()Ablow out coilsBgovernor relayCunder voltage tripsDreverse current trips
单选题If two AC generators are to be operated in parallel, the load is distributed evenly by()Ameans of rheostat the governor settingsBa balance coil excitationCadjusting the governor settingsDchanging excitation
单选题You are attempting to parallel two AC generators, and the syncope pointer is revolving in the fast directionThis indicates that the frequency of the incoming machine is ().Ahigher than the bus frequencyBlower than the bus frequencyCthe same as the bus frequency but out of phase with itDthe same as the bus frequency and the circuit breaker may be closed at any pointer position
单选题If two AC generators are operated in parallel, the load is distributed evenly by()Aa rheostatBa balancing coilCchanging field excitationDadjusting the governor settings
单选题If two A.C.generators are to be operated in parallel, the load is distributed evenly by()Ameans of rheostat the governor settingsBa balance coil excitationCadjusting the governor settingsDchanging excitation
多选题Which two of the following statements are true about HSRP load sharing?() (Choose two)AIt is achieved by using more than one HSRP group.BIt is done in regards to either round robin or weight basis.CIt is used to offload the active router in a certain HSRP group.DSingle group HSRP is used to achieve more efficient link utilization.EThe return traffic is influenced by HSRP load sharing configuration.
单选题To equalize the power factor of two alternators operating in parallel, the ()Afield excitation of both units is adjustedBgovernors of both units are adjustedCphase sequence is alteredDkilowatt load is evenly divided
单选题The division of kilowatt load between two paralleled alternators is determined by the ()Aamount of field excitation of the leading machineBload-speed characteristics of the governorsCamount of field excitation to the lagging machineDtype of alternator