Latest [Apr 04, 2022] Real Huawei H12-411_V2.0 Exam Dumps Questions
H12-411_V2.0 Dumps To Pass HCIA-Data Center Facility Exam in One Day (Updated 203 Questions)
NEW QUESTION 68
ABC Circuit breakers are mainly used IT Load front end, such as ups Inside the output cabinet.
- A. True
- B. False
Answer: B
NEW QUESTION 69
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 70
The following is for high frequency ups The correct description of the rectifier components is.
- A. Realize power factor correction and boost function
- B. Complete DC to AC conversion
- C. Realize power factor correction and pressure reduction function
- D. Complete AC to DC conversion
Answer: A,D
NEW QUESTION 71
The type of compressor used by Huawei's air-cooled precision air conditioner is ____________ .
Answer:
Explanation:
vortex type
NEW QUESTION 72
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. True
- B. False
Answer: A
NEW QUESTION 73
It can be implemented in the alarm management function of the dynamic environment monitoring system
____________ .
Answer:
Explanation:
locating alarms, querying alarms
NEW QUESTION 74
In the data center power supply and distribution system, the low-voltage circuit breaker with three-stage protection feature is used for.
- A. Prevent the main circuit from breaking due to branch circuit breaking
- B. Prevent the main circuit from breaking due to a short circuit in the branch circuit
- C. Prevent branch circuit short circuit caused by branch circuit overload
- D. Prevent the main circuit from being overloaded due to the short circuit of the branch circuit
Answer: B,D
NEW QUESTION 75
____________ 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 76
The following ____________ options do not belong to the characteristics of direct air-cooled air-conditioning.
Answer:
Explanation:
unlimited installation distance
NEW QUESTION 77
____________ can complete the conversion from DC to AC.
Answer:
Explanation:
Inverter component
NEW QUESTION 78
____________ 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 79
The following ____________ are not harmful effects of electric current on the human body.
Answer:
Explanation:
splitting
NEW QUESTION 80
The function of the air system is to rationally organize the flow of indoor air, so that the temperature, humidity and cleanliness of the air in the indoor working area can better meet the process requirements and the comfort requirements of the human body.
- A. True
- B. False
Answer: A
NEW QUESTION 81
The gas fire extinguishing system consists of ____________ .
Answer:
Explanation:
extinguishing agent storage bottle group, starting device, fire fighting pipe network, sprinklers
NEW QUESTION 82
There are three different classifications of grounding forms in low-voltage power distribution systems
____________, where the first capital letter represents ____________ .
Answer:
Explanation:
TN,TT,IT , the relationship between the power system and the ground
NEW QUESTION 83
UPS It can purify the mains input, output stable AC, and protect the load.
- A. True
- B. False
Answer: A
NEW QUESTION 84
The dynamic environment monitoring system can be deployed in medium and large modular data centers, small modular data centers, container data centers, etc.
- A. True
- B. False
Answer: A
NEW QUESTION 85
The fuse can protect personal safety when the equipment leaks.
- A. True
- B. False
Answer: B
NEW QUESTION 86
UPS Also known as AC uninterrupted power supply system, for online upsWhen the AC input is normal, the
____________ will supply power to the system.
Answer:
Explanation:
inverter
NEW QUESTION 87
At present, storage batteries are mainly installed in racks and cabinets in data centers.
- A. True
- B. False
Answer: A
NEW QUESTION 88
Data centers usually use gas fire protection systems.
- A. True
- B. False
Answer: A
NEW QUESTION 89
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