转速不等率(speed governing droop)
转速不等率(speed governing droop)
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
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
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
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
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
单选题Air bubbles in a hydraulic governor can cause ()Asluggish responseBspeed droop variationsCisochronous governingDsensitivity increase
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 ()Agovernor sensitivityBgovernor promptnessCspeed droopDisochronous governing
单选题Engine operating conditions may be indicated by the color of the exhaust smoke.Black smoke could indicate()Aan insufficient speed droop settingBan overloaded engineCclogged drain holes in the oil control ringsDcomplete combustion
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The ability of the governor to prevent fluctuations in engine speed is termed ().AsensitivityBstabilityCpromptnessDspeed droop
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