H12-421 Training & Certification Get Latest HCNP-DCF-BFDO Updated on Jan 01, 2022
Certification Training for H12-421 Exam Dumps Test Engine
NEW QUESTION 30
The Netcol 5000-A35kW uses an electronic expansion valve.
- A. False
- B. True
Answer: A
NEW QUESTION 31
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. True
- B. False
Answer: A
NEW QUESTION 32
In the Huawei NetCol5000-A line-class precision air conditioner, the () parts are optional.
- A. Fan
- B. Electric heating
- C. Evaporator
- D. Compressor
Answer: B
NEW QUESTION 33
Deploying on demand and avoiding over-investment is the only advantage of a modular data center.
- A. False
- B. True
Answer: A
NEW QUESTION 34
The UPS2000-G cannot implement a shared battery pack.
- A. False
- B. True
Answer: A
NEW QUESTION 35
When inspecting, maintaining and repairing electrical equipment in non-blackout mode, a warning sign or signage should be placed on the electrical installation and work area.
- A. True
- B. False
Answer: A
NEW QUESTION 36
The straight pipe interval fixedly supported by NetCol5000-C piping is ().
- A. 3000mm
- B. 2800mm
- C. 3200mm
- D. 2500mm
Answer: D
NEW QUESTION 37
Huawei NetCol5000-A line-level precision air conditioner mainly solves the hot issue of high-density data center.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 38
When four UPS2000G-20K parallel units are set and the number of redundant units in the parallel setting is set to "1", the capacity of the system is () KVA.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 39
On the panel of the air conditioning unit, in the group control topology diagram, the difference between this machine and other machines is that there is a green border.
- A. True
- B. False
Answer: A
NEW QUESTION 40
() 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. Minimum capacity
- B. Maximum capacity
- C. Rated capacity
- D. Actual capacity
Answer: D
NEW QUESTION 41
The NetCol5000-A35kW indoor unit installation needs to be connected to the zero line.
- A. False
- B. True
Answer: A
NEW QUESTION 42
The PDU8000 intelligent power meter parameter display is abnormal, which may be caused by (). (Multiple choice)
- A. Corresponding current transformer failure
- B. Intelligent power meter failure
- C. The corresponding voltage collection line is abnormal.
- D. Electricity or voltage ratio setting error
Answer: A,B,C,D
NEW QUESTION 43
The UPS5000-E accepts an input voltage of ( ) V range.
- A. 305-485
- B. 140-490
- C. 138-485
- D. 120-480
Answer: C
NEW QUESTION 44
When the NeCol5000-A is under nitrogen pressure, the required nitrogen bottle must be equipped with a pressure reducing valve.
- A. True
- B. False
Answer: A
NEW QUESTION 45
When the FusionModule1000 fire protection system is adjusted, the smoke detector can be heated to simulate the fire alarm of the temperature sensor.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 46
When the ECC800 detects that the connection signal to the device is interrupted, a communication interruption alarm is generated. What are the possible reasons? (Multiple choice)
- A. Equipment failure
- B. Cable connection is loose
- C. Poor cable contact
- D. Power supply is not normal
Answer: A,B,C,D
NEW QUESTION 47
When installing the Huawei air-cooled air conditioner, the refrigerant pipeline positive pressure is required to be () hours.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 48
The functions that the ECC800 can implement are (). (Multiple choice)
- A. Linkage rule settings
- B. Access control user management
- C. Historical data export
- D. Query system alarms
Answer: A,B,C,D
NEW QUESTION 49
Which humidifier is used by the NetCol 8000-A?
- A. Infrared humidifier
- B. High pressure micro-mist humidifier
- C. Electrode humidifier
- D. Wet film humidifier
Answer: A
NEW QUESTION 50
What are the working mode of the runner natural cooling scheme? (Multiple choice)
- A. Complete compressor cooling mode
- B. Direct ventilation mode
- C. Complete natural cooling mode
- D. Mixed mode
Answer: A,C,D
NEW QUESTION 51
The following () characteristics are standard features of the NetCol 8000-C air conditioner.
- A. Humidification function
- B. G4 grade filter
- C. Dual power supply
- D. Water immersion sensor
Answer: B
NEW QUESTION 52
When the status of UPS2000G battery is "NA", it may be ().
- A. The battery is not connected
- B. The battery is connected properly.
- C. Battery low voltage
- D. Battery N line is not connected
Answer: A
NEW QUESTION 53
What are the access control type of the micro module? (Multiple Choice)
- A. Password swipe access control machine
- B. Face recognition access control
- C. Fingerprint swipe access control machine
- D. Fingerprint password swipe access control machine
Answer: A,C,D
NEW QUESTION 54
What is the correct statement about the description of UPS5000-E? (Multiple choice)
- A. The main input frequency range is 40-70HZ
- B. The main input voltage range is 138V-485V
- C. Support for the maximum number of parallel units is 2
- D. Modular design
Answer: A,B,D
NEW QUESTION 55
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