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1. The function of the wind system is to properly organize the flow of indoor air so that the temperature,
humidity and cleanliness of the air in the indoor work area can better meet the technical requirements and
human comfort requirements.
A. TRUE
B. FALSE
Answer: A
2. CLF (Cooling Load Factor) is defined as the ratio of the data center cooling equipment power
consumption and IT equipment power consumption.
A. TRUE
B. FALSE
Answer: A
3. For the same MCB circuit breaker, the rated ultimate short-circuit breaking capacity Icu is generally less
than the rated operating short-circuits breaking capacity Ics.
A. TRUE
B. FALSE
Answer: B
4. In air-conditioning systems, the role of ( ) is to cool the high-temperature and high-pressure gas
discharged from the compressor by using water-cooled or air-cooled to release heat to the outside world.
A. Evaporator
B. Condenser
C. compressor
D. Expansion valve
Answer: B
5. What throttle devices does Huawei air-cooled precision air conditioning use? (Multiple choice)
A. Solenoid valve
B. Thermal expansion valve
C. Electronic expansion valve
D. Orifice
Answer: BC
6. In air conditioning systems, the role of the oil separator is to separate the lubricant from the compressor
discharge and return the separated lubricant to the compressor.
A. TRUE
B. FALSE
Answer: A
7. pPUE (Partial PUE) is an extension of the data center PUE, used to evaluate and analyzing the energy
efficiency of a data center's local area or equipment.
A. TRUE
B. FALSE
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Answer: A
8. The following () circuit breakers are typically low voltage circuit breakers for IT loads.
A. ACB
B. MCCB
C. MCB
D. RCB
Answer: C
9. The following ( ) is the correct description of 6 fixed VRLA single battery series. The rated capacity is
150Ah.
A. 150-GFM-6
B. 6-GMF-150
C. 6-GFM-150
D. MF-150
Answer: C
10. The following ( ) air supply methods are m