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H12-411_V2.0 exam torrent Huawei study guide
NEW QUESTION 38
During the construction process, if there is an object falling or hitting, it should be used ____________ .
Answer:
Explanation:
safety helmet, anti-smashing shoes
NEW QUESTION 39
____________ After starting, the alarm will send out a strong sound and light alarm signal, which has reached the purpose of reminding the on-site personnel to pay attention.
Answer:
Explanation:
Sound and light alarm
NEW QUESTION 40
For valve-regulated lead-acid batteries, the function of the safety valve is ____________ .
Answer:
Explanation:
eliminate excess gas and prevent air from entering
NEW QUESTION 41
Reflects the dryness of the air, the smaller the value, the drier the air.
- A. Dry bulb temperature
- B. Relative humidity
- C. Moisture content
- D. Wet bulb temperature
Answer: B
NEW QUESTION 42
The leakage protector is mainly divided into electronic type and electromagnetic type according to the action mode.
- A. False
- B. True
Answer: B
NEW QUESTION 43
The following parts can check whether the refrigerant contains moisture ____________ .
Answer:
Explanation:
sight glass
NEW QUESTION 44
In the air-conditioning system, the function of the ____________ is to use water cooling or air cooling to cool the high-temperature and high-pressure gas discharged from the compressor and release heat to the outside world.
Answer:
Explanation:
condenser
NEW QUESTION 45
The following components that can improve the heat exchange capacity of the heat exchanger are
____________ .
Answer:
Explanation:
fan
NEW QUESTION 46
The compressor is the core of the refrigeration cycle. It is the power device for the refrigerant to circulate in the system. It reduces the low temperature from the evaporator. The compressed steam is compressed into high temperature and high pressure steam.
- A. False
- B. True
Answer: B
NEW QUESTION 47
The role of the lead-acid battery battery is to contain electrolyte, plates, separators, etc.
- A. False
- B. True
Answer: B
NEW QUESTION 48
During the construction process, the nitrogen bottle operation must be equipped with special ____________ .
Answer:
Explanation:
nitrogen pressure reducing valve, goggles, antifreeze gloves
NEW QUESTION 49
In the data center power supply and distribution system, if a power outage occurs, it is generally caused by Complete the standby switch between mains and mains or mains and diesel generators.
- A. Diesel generator system
- B. Rack power distribution system
- C. Low-voltage power distribution system
- D. Automatic transfer switch system
Answer: D
NEW QUESTION 50
Huawei Monitoring System Neteco Can only access support SNMP Protocol equipment.
- A. False
- B. True
Answer: A
NEW QUESTION 51
Which of the following statements about the battery is wrong:
- A. The battery room should prevent the temperature from being too high to prevent thermal runaway.
- B. When the battery reaches the end of its service life, it does not require special treatment and can be sold directly to scrap for recycling.
- C. The reason for the swelling of the battery is that the pressure becomes higher due to excessive gas evolution.
- D. When the battery leaks, do not touch it directly with your hands.
Answer: B
NEW QUESTION 52
The following ____________ is correct 1A fixed valve-regulated sealed lead-acid battery 2VMonomer, the rated capacity is 800Ah.
Answer:
Explanation:
GFM-800
NEW QUESTION 53
In the air conditioning system, the function of the oil and gas separator is to separate the lubricating oil from the compressor exhaust and return the separated lubricating oil to the compressor.
- A. False
- B. True
Answer: B
NEW QUESTION 54
UPS systematic N+X System ratio 2N The power supply guarantee level of the system is higher.
- A. False
- B. True
Answer: A
NEW QUESTION 55
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