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转速不等率（speed governing droop）
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更多 “转速不等率（speed governing droop）” 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
Engine operating conditions may be indicated by the color of the exhaust smoke Black smoke could indicate .A.an insufficient speed droop settingB.an overloaded engineC.clogged drain holes in the oil control ringsD.complete combustion
考题
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
考题
数字电液控制（DEH）系统油动机和调节汽门频繁动作必然造成部件磨损从而降低寿命，因此在DEH系统中人为引入（）以减少不必要的调门动作。A、调频限幅B、转速不灵敏区（死区）C、转速不等率D、转速偏差
考题
关于中兴ZXCTN62006300设备风扇及电源，以下说法错误的是：（）。A、中兴ZXCTN6263设备风扇转速只能是全速运行，无法降低转速B、Show powerfanstate检查电源、风扇的工作状态C、Show fan-speed检查风扇的运行状态D、Set fan-speed full设置风扇全速运行
考题
汽油发动机外特性曲线表明，当发动机运转速度（）发动机最大扭矩所对应的转速时，随着转速的逐渐增加，发动机扭矩和功率均呈现增加趋热，而燃油消耗率呈下降趋势。A、大于B、等于C、小于D、不等于
考题
单选题Air bubbles in a hydraulic governor can cause （）A
sluggish responseB
speed droop variationsC
isochronous governingD
sensitivity increase
考题
单选题A change in engine speed is required before a governor is able to make a corrective movement of fuel rackThis aspect of governing is commonly expressed as a percent and is known as （）A
governor sensitivityB
governor promptnessC
speed droopD
isochronous governing
考题
单选题Engine operating conditions may be indicated by the color of the exhaust smoke.Black smoke could indicate（）A
an insufficient speed droop settingB
an overloaded engineC
clogged drain holes in the oil control ringsD
complete combustion
考题
单选题To correct a hunting problem in a main propulsion diesel engine hydraulic governor, you should （）.A
increase the governor oil pressureB
adjust the speed droop settingC
adjust the speeder spring travelD
adjust the compensating needle valve
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（）A
an incorrect diesel generator governor speed droop adjustmentB
a faulty reverse power relay within the main circuit breaker assemblyC
unsynchronized isochronous load distribution adjustmentsD
a different speed setting on each unit
考题
单选题The ability of the governor to prevent fluctuations in engine speed is termed （）.A
sensitivityB
stabilityC
promptnessD
speed droop
考题
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 （）A
speed will drop drastically with any increase in loadB
will stop due to zero fuel supplyC
will stall upon application of loadD
speed will remain fairly constant despite load changes
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