[Jan 16, 2022] RealExamFree H12-421 Exam Practice Test Questions (Updated 240 Questions)
Pass Huawei H12-421 Exam Info and Free Practice Test
NEW QUESTION 18
NetCol5000-A air conditioner compressor exhaust temperature is too high, what are the reasons? (Multiple Choice)
- A. condenser filth blockage leads to poor heat dissipation
- B. Too little refrigerant charge
- C. The outdoor unit is not installed correctly.
- D. The refrigerant circuit or device is clogged
Answer: A,B,C,D
NEW QUESTION 19
The cabinet collector cannot be used for environmental data collection of IT cabinets.
- A. False
- B. True
Answer: A
NEW QUESTION 20
If the UPS5000-E-400K is bypassed and the maintenance bypass is closed, both the main power module and the bypass module stop working.
- A. False
- B. True
Answer: A
NEW QUESTION 21
() indicates the amount of electricity that can be discharged when the fully charged battery is discharged to the specified termination voltage according to certain discharge conditions. The unit is expressed in Ah (Ah) or Watt (Wh).
- A. Actual capacity
- B. Maximum capacity
- C. Rated capacity
- D. Minimum capacity
Answer: A
NEW QUESTION 22
When the status of UPS2000G battery is "NA", it may be ().
- A. Battery N line is not connected
- B. The battery is not connected
- C. Battery low voltage
- D. The battery is connected properly.
Answer: B
NEW QUESTION 23
In the Huawei NetCol5000-A line-class precision air conditioner, the () parts are optional.
- A. Fan
- B. Evaporator
- C. Compressor
- D. Electric heating
Answer: D
NEW QUESTION 24
The Netcol 5000-A35kW uses an electronic expansion valve.
- A. False
- B. True
Answer: A
NEW QUESTION 25
Two different versions of the software UPS2000-G can be implemented in parallel.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 26
The user can modify the login password in the ( ) menu of the ECC800 web interface.
- A. System upgrade
- B. Electronic label
- C. Version information
- D. User Management
Answer: D
NEW QUESTION 27
The default battery charge voltage of the UPS2000-G is ( ) V/cell.
- A. 2.35
- B. 2.45
- C. 2.15
- D. 2.25
Answer: A
NEW QUESTION 28
The ECC800 supports two AC inputs.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 29
It is necessary to remove the fixed sheet metal parts of the compressor before installing the indoor unit in the air-cooled air conditioner.
- A. False
- B. True
Answer: B
NEW QUESTION 30
In the NetCol5000-A air conditioner, if a large number of air bubbles are observed in the liquid crystal mirror, it indicates that the refrigerant system lacks refrigerant, and the refrigerant should be charged as needed.
- A. False
- B. True
Answer: B
NEW QUESTION 31
In NetEco's report management, which types of periodic tasks are there? (Multiple choice)
- A. Daily
- B. Weekly
- C. Times
- D. Monthly report
Answer: A,B,C,D
NEW QUESTION 32
Through the ECC800Web interface, what can users do? (Multiple choice)
- A. Query version information
- B. Export historical data
- C. Real-time monitoring of device status
- D. Software upgrade
Answer: A,B,C,D
NEW QUESTION 33
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