[Oct-2021] H12-411 Certification with Actual Questions from Pass4sureCert
Updated H12-411 Dumps PDF - H12-411 Real Valid Brain Dumps With 185 Questions!
NEW QUESTION 15
When mains input range of voltage: 150-260VAC, frequency: 45-60HZ, which of the following UPS working range can work in the main inverter state?
- A. Input range: 180 - 240V, 45 - 55HZ
- B. Input range: 160 - 280V, 45 - 65HZ
- C. Input range: 110 - 280V, 40 - 70HZ
- D. Input range: 180 - 240V, 40 - 70HZ
Answer: C
NEW QUESTION 16
Which is the unit of UPS rated capacity?
- A. Var
- B. Kw
- C. AH
- D. KVA
Answer: D
NEW QUESTION 17
Huawei NetEco monitoring system must not support the monitoring of third-party devices.
- A. True
- B. False
Answer: B
NEW QUESTION 18
CLF (Cooling Load Factor) is defined as the data center cooling equipment power consumption and IT equipment power ratio.
- A. True
- B. False
Answer: A
NEW QUESTION 19
Compressor is the heart of the refrigeration cycle, is the power plant of the refrigerant in the system inner loop:
the low temperature and low pressure steam from the evaporator is compressed into high temperature and pressure steam.
- A. True
- B. False
Answer: A
NEW QUESTION 20
TN-S low-voltage distribution system in the three-phase unbalanced current, so that the protection line PE generate voltage to ground.
- A. True
- B. False
Answer: B
NEW QUESTION 21
A UPS capacity is 200KVA with output power factor is 0.9, then how much load does It can drive up?
- A. 200kw
- B. 222kw
- C. 180kw
- D. 190kw
Answer: C
NEW QUESTION 22
If the capacity of the UPS is 20KVA, the UPS front end input capacity may be () during normal operation.
- A. 25KVA
- B. 20KVA
- C. 19KVA
- D. 18KVA
Answer: A
NEW QUESTION 23
Common communication equipment ways have RS232, RS485, FE, etc.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 24
Computer room air conditioning is suitable for () scenes. (Multiple choice)
- A. Large and medium-sized data center
- B. Office
- C. Modular data center
- D. Container Data Center
Answer: A,C,D
NEW QUESTION 25
Dynamic environment monitoring system can be deployed in medium and large modular data center small modular data center, container data center.
- A. True
- B. False
Answer: A
NEW QUESTION 26
MCB circuit breaker C-level trip setting value between (), used in IT load situations.
- A. 3-5In
- B. 5-10ln
- C. 2-3ln
- D. 8-15ln
Answer: A
NEW QUESTION 27
UPS common system configuration are N system, N + X system and 2N system.
- A. True
- B. False
Answer: A
NEW QUESTION 28
Cryogenic components improve the continuous low pressure caused by low temperature start-up, thus allowing the air conditioner to start up normally.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 29
Which of the following is not part of the chilled water air conditioner?
- A. Condenser
- B. Exhaust valve
- C. Table cooler
- D. Fan
Answer: A
NEW QUESTION 30
What should be used during construction when low-voltage live working(below 1kV)? (Multiple choice)
- A. Insulation service
- B. Insulation gloves
- C. Helmets
- D. Insulating shoes
Answer: A,B,D
NEW QUESTION 31
Users can use the () function to assign personnel to troubleshoot
- A. Monitoring and Management
- B. Work Order Management
D Configuration Management - C. Performance Management
Answer: B
NEW QUESTION 32
The following () air supply methods are mainly applicable to the craft air conditioners in lower work area where there is a large amount of waste heat to be taken away.
- A. upper supply and bottom return
- B. middle air-supply
- C. bottom supply and upper return
- D. bottom supply and bottom return
Answer: C
NEW QUESTION 33
UPS can clean electricity input, output stable exchange, to protect the load
- A. True
- B. False
Answer: A
NEW QUESTION 34
For valve-regulated lead-acid batteries, what are the role of safety valve? (Multiple choice)
- A. Exhaust excess gas
- B. prevent air from entering
- C. Participate in chemical reactions
- D. Conductive
Answer: A,B
NEW QUESTION 35
Cooling coil controls the indoor temperature and humidity via a heat exchange with refrigerant and indoor air.
- A. True
- B. False
Answer: B
NEW QUESTION 36
The following () circuit breakers are typically low voltage circuit breakers for IT loads.
- A. ACB
- B. MCCB
- C. RCB
- D. MCB
Answer: D
NEW QUESTION 37
In a data center use fire water and foam extinguishing system will not cause damage to communications equipment.
- A. True
- B. False
Answer: B
NEW QUESTION 38
pPUE (Partial PUE) is an extension of the data center PUE, used to evaluate and analyzing the energy efficiency of a data center's local area or equipment.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 39
Which of the following options do not qualify as direct expansion air-cooled air conditioners?
- A. can not be installed over long distances, or large loss of refrigeration
- B. Refrigeration energy efficiency is relatively low
- C. Simple structure, easy installation, low cost
- D. Installation distance is unlimited
Answer: D
NEW QUESTION 40
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