Pass Huawei H12-411_V2.0 Exam Info and Free Practice Test
New 2021 Latest Questions H12-411_V2.0 Dumps - Use Updated Huawei Exam
NEW QUESTION 69
Huawei monitoring system ECC800 The collector can be inserted at most ____________ A power supply module.
Answer:
Explanation:
2
NEW QUESTION 70
Reflects the dryness of the air, the smaller the value, the drier the air.
- A. Wet bulb temperature
- B. Dry bulb temperature
- C. Relative humidity
- D. Moisture content
Answer: C
NEW QUESTION 71
TN-S The three-phase unbalanced current in the low-voltage power distribution system makes the protection line PS Generate voltage to ground.
- A. True
- B. False
Answer: B
NEW QUESTION 72
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 73
According to the degree of equipment concentration, the air conditioning system can be divided into
____________ .
Answer:
Explanation:
centralized, semi-centralized, decentralized
NEW QUESTION 74
Leakage current protector is based on the current exceeds the specified value for a period of time, the melt is melted by its own heat, thereby breaking the circuit.
- A. True
- B. False
Answer: B
NEW QUESTION 75
The function of the fire-fighting system is to automatically capture the smoke or heat in the fire detection area when a fire occurs, so as to issue an audible and visual alarm and automatically extinguish the fire.
- A. True
- B. False
Answer: A
NEW QUESTION 76
The refrigerant used by Huawei precision air conditioner is ____________ .
Answer:
Explanation:
R410A
NEW QUESTION 77
MCB Circuit breakers can be divided into ____________ and (magnetic trip) according to the principle of tripping.
Answer:
Explanation:
thermal trip
NEW QUESTION 78
ATS The dual power supply automatic switch can realize the fast mechanical switching of the two power supplies.
- A. True
- B. False
Answer: A
NEW QUESTION 79
R410a Refrigerants can produce the greenhouse effect and destroy the ozone layer.
- A. True
- B. False
Answer: B
NEW QUESTION 80
Protective grounding: Grounding refers to the direct connection with the earth, and a certain point of the live part of an electrical device or electrical circuit is connected to a large point. When the electrical device or other device is normal, a certain point of the uncharged part is artificially connected to the earth.
- A. True
- B. False
Answer: A
NEW QUESTION 81
When the load is 60KW, Each ups The capacity is 100KVA, Power Factor 0.95, Then when the system must be redundantly configured, at least ____________ tower ups.
Answer:
Explanation:
2
NEW QUESTION 82
____________ is used to ensure that the fire extinguishing agent has been sprayed out in a specific jet form to promote the rapid gasification of the fire extinguishing agent and reach the fire extinguishing concentration in the protected space.
Answer:
Explanation:
Nozzle
NEW QUESTION 83
During the construction process, the operation with debris splashing should be used ____________ .
Answer:
Explanation:
anti-impact goggles
NEW QUESTION 84
The air-conditioning energy efficiency ratio is the ratio of the effective input power to the cooling capacity, and its value is W/W Express.
- A. True
- B. False
Answer: B
NEW QUESTION 85
Lay anti-static floor, wear anti-static shoes and socks to prevent it from forming ____________ .
Answer:
Explanation:
static electricity is conducted from the feet to the ground
NEW QUESTION 86
The dynamic environment monitoring system only has a secondary structure.
- A. True
- B. False
Answer: B
NEW QUESTION 87
Which of the following descriptions about the air supply method from top to bottom is correct ____________ .
Answer:
Explanation:
the air supply outlet is located in the upper part of the air-conditioned room, and the return air outlet is located in the lower part of the air-conditioned room
NEW QUESTION 88
The following ____________ are not harmful effects of electric current on the human body.
Answer:
Explanation:
splitting
NEW QUESTION 89
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