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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
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更多 “ 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 ” 相关考题
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
考题
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
考题
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
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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
考题
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
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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.
考题
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.A
to be keptB
loggedC
changedD
has remained
考题
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 （）.A
voltage regulatorsB
field rheostatsC
reverse power relaysD
prime mover governors
考题
单选题Which is a function of the voltage regulators used with AC generators?（）A
To cut out generators when they are no longer requiredB
To cut in additional generators automatically as requiredC
To divide the KW load equally between generators operating in parallelD
To divide reactive current between generators operating in parallel
考题
单选题The load between two steam-driven alternators operating in parallel may be adjusted by varying （）A
the speed of the alternatorsB
the field strength of the machinesC
the power factor of the alternatorsD
steam supply to the prime movers
考题
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 （）A
actuationB
sensitivityC
compensationD
thrust shaft
考题
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.A
speed settingsB
speed droopsC
speed dropsD
speed changes
考题
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 （）.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
考题
单选题The load sharing characteristics of two diesel generator operating in parallel are mostly dependent on their governor （）.A
load limit settingsB
idle speed settingsC
speed limit settingsD
speed droop settings
考题
单选题Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）A
SensitivityB
PowerC
Speed droopD
Compensation
考题
单选题On commonly used ships,if two A√Cgenerators are operated in parallel, the load is distributed evenly by （）.A
varying the D-Cexciter voltageB
varying the reluctance of the air gapC
regulating the speed of prime moverD
shorting out part of the armature windings
考题
单选题One result of operating a diesel engine at light load with excessively low cooling water temperature is a/an （）A
decrease in ignition lagB
increase in fuel economyC
reduction in lube oil viscosityD
increase in cylinder misfiring
考题
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（）A
advance as the load increasesB
retard as the load increaseC
remain unchanged regardlessD
always occur at top dead center
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单选题An increase in the load on a turbocharged diesel engine operating at constant speed will result in an increase in （）A
exhaustB
air box pressureC
brake main effective pressureD
all of the above
考题
单选题When two DC generators operate in parallel, they are protected against motorizing by（）A
blow out coilsB
governor relayC
under voltage tripsD
reverse current trips
考题
单选题If two AC generators are to be operated in parallel, the load is distributed evenly by（）A
means of rheostat the governor settingsB
a balance coil excitationC
adjusting the governor settingsD
changing excitation
考题
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 （）.A
higher than the bus frequencyB
lower than the bus frequencyC
the same as the bus frequency but out of phase with itD
the same as the bus frequency and the circuit breaker may be closed at any pointer position
考题
单选题If two AC generators are operated in parallel, the load is distributed evenly by（）A
a rheostatB
a balancing coilC
changing field excitationD
adjusting the governor settings
考题
单选题If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）A
means of rheostat the governor settingsB
a balance coil excitationC
adjusting the governor settingsD
changing excitation
考题
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.
考题
单选题To equalize the power factor of two alternators operating in parallel, the （）A
field excitation of both units is adjustedB
governors of both units are adjustedC
phase sequence is alteredD
kilowatt load is evenly divided
考题
单选题The division of kilowatt load between two paralleled alternators is determined by the （）A
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
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