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风机超驰作用override action of fan
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330MW机组一次风机RB动作情况（）。A、运行一次风机超驰为80%；B、延时5秒跳C磨；C、进AA层#1，3角油枪延时5秒进#2，4角油枪；D、关闭所有减温水调节门；E、负荷底限180MW。
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炉膛压力超驰控制（MFTKICKER）的目的是防止炉膛（）。其作用原理是（），当炉膛压力低于某一定值时，超驰控制回路在指令上叠加一个负值，使引风机动叶迅速关小，直到炉膛压力工况得到改善。A、外爆，引风机；B、爆燃，引风机勺管C、内爆，引风机动叶；D、内爆，引风机勺管。
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A technician has a laptop that is running slow and notices the fan is on high. Which of the following should the technician try FIRST?（）A、Clean the heatsink assembly of debris.B、Turn the fan off when the AC adapter is attached.C、Turn the fan to low in the BIOS.D、Replace the processor and fan.
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单选题The crankcase of many diesel engines are kept under a slight vacuum by the （）.A
scavenging action of the pistonB
piston type vacuum pump taking suction off a differential manometerC
gland exhausting manometerD
crankcase exhaust fan
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单选题You are discharging cargo and the inert gas system is in operation to inert the tanks. The pressure in a tank being discharged starts to drop below the allowable limit. What action should you take? （）A
Cut in another IG fan to increase gas flowB
Open the pressure control valve until the pressure increasesC
Open the tank isolation valve to the fully open positionD
Reduce the pumping rate
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单选题The air-conditioner is running in the winter and to be stopped, we should（）A
close Fan and Humidifier at the same timeB
firstly close Fan and then close humidifier immediatelyC
firstly close humidifier and then close Fan immediatelyD
firstly close humidifier and then close Fan after 30 seconds
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