Huawei H12-421-ENU Premium Exam Engine pdf - Download Free Updated 240 Questions
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NEW QUESTION 81
The NetCol5000-C has two installation scenarios with a chilled water distribution unit and no chilled water distribution unit.
- A. False
- B. True
Answer: B
NEW QUESTION 82
The straight pipe interval fixedly supported by NetCol5000-C piping is ().
- A. 2500mm
- B. 2800mm
- C. 3000mm
- D. 3200mm
Answer: A
NEW QUESTION 83
DOD (depth of discharge) indicates the percentage of battery discharge and battery rated capacity.
- A. False
- B. True
Answer: B
NEW QUESTION 84
When the temperature detector or smoke detector in the FusionModule1000 generates an alarm, ( ) emits a continuous beeping sound to remind you to take measures as soon as possible to avoid a major accident. (Multiple choice)
- A. Buzzer
- B. Temperature detector
- C. Smoke detector
- D. Sound and light alarm
Answer: A,C,D
NEW QUESTION 85
When installing the power line on the UPS5000-E, if there are different sources on the main side, you need to remove the copper bars connected to the bypass and the main circuit, and then connect the main circuit and the bypass input respectively.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 86
The NetCol5000-C requires manual adjustment of the water valve to a minimum when it is filled with water.
- A. False
- B. True
Answer: A
NEW QUESTION 87
If the customer load cannot be de-energized, pay attention to ( ) when disconnecting the maintenance bypass switch after the repair is completed.
- A. Battery input is normal
- B. The road module has no abnormal alarm and can be powered.
- C. The maintenance bypass switch can also be disconnected when the bypass module is abnormal.
- D. EPO status can be broken maintenance switch
Answer: B
NEW QUESTION 88
When installing the UPS5000-E, there should be a certain distance between the back and the top to ensure ventilation and heat dissipation.
- A. False
- B. True
Answer: B
NEW QUESTION 89
What is the control component of the modular data center closed access door?
- A. Cabinet collector
- B. sunroof actuator
- C. Multi-function sensor
- D. Access control actuator
Answer: D
NEW QUESTION 90
The refrigerant air cylinder of Huawei air-cooled air conditioner does not need to be inverted on the electronic scale when charging the refrigerant.
- A. False
- B. True
Answer: A
NEW QUESTION 91
The NetCol5000-A35kW air conditioner has a light load dehumidification function.
- A. False
- B. True
Answer: A
NEW QUESTION 92
To balance the capacity loss caused by the self-discharge of the battery during the use of the battery, it is necessary to charge the battery continuously and for a long time at constant voltage, which is called ().
- A. self-discharge
- B. charging
- C. balanced charging
- D. charging test
Answer: B
NEW QUESTION 93
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. False
- B. True
Answer: B
NEW QUESTION 94
In ECO mode, the UPS operates in the () state when the input is stable.
- A. Battery
- B. Main road inverter
- C. Bypass
- D. Maintenance bypass
Answer: C
NEW QUESTION 95
When the NetCol5000-C commissions the drainage device, lift the high floater by hand for 5 seconds. At this time, the dual water pump is turned on at the same time, and the "discharge abnormality alarm" appears.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 96
NetCol5000-C temperature and humidity sensor dial setting is incorrect may result in ().
- A. The return air temperature or fan speed fluctuates greatly
- B. Water leakage at the bottom of the equipment
- C. Equipment drainage capacity is significantly reduced
- D. Temperature and humidity sensor cannot detect temperature and humidity
Answer: D
NEW QUESTION 97
In the case of normal mains, the UPS battery in inverter mode may be executed ( ). (Multiple choice)
- A. Shallow discharge test
- B. Float charging
- C. Checking the capacity test
- D. Balanced charging
Answer: A,B,C,D
NEW QUESTION 98
The same group of batteries cannot be mixed with batteries of different capacities, different specifications, different batches, and different manufacturers.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 99
Which of the following supports the UPS5000-E-400K-FM input line voltage? (Multiple choice)
- A. 220V
- B. 380V
- C. 415V
- D. 400V
Answer: B,C,D
NEW QUESTION 100
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