[Dec-2021] H12-411 Exam Dumps - Free Demo & 365 Day Updates
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NEW QUESTION 103
Huawei NetEco supports the concept of user groups to implement role-based user group management. User group means a group of users with the same operating rights and different user groups have different permissions.
- A. True
- B. False
Answer: A
NEW QUESTION 104
When AC power equipment are introduced in by using three-phase four-wire system, in addition to the zero line on the near side of the power transformer grounding, electrical equipment and the engine room should be near the ground repeatedly.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 105
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 106
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 107
Air energy efficiency ratio is the ratio of effective input power and cooling capacity, its value will be shown as W/W.
- A. True
- B. False
Answer: B
NEW QUESTION 108
There are three different categories of earthing (TN, TT and IT) in low voltage distribution systems. What does the first letters represent?
- A. Indicates the relationship between neutral N and protective earth PE
- B. Indicates the power system on the ground
- C. Indicates the relationship of the power system to the exposed conductive parts of the power receiving system
- D. Indicates power receiving system exposed conductive parts and the relationship between the ground
Answer: B
NEW QUESTION 109
What kind of refrigerant does Huawei precision air conditioner use?
- A. R13
- B. R410A
- C. R22
- D. R407C
Answer: B
NEW QUESTION 110
Which of the following outdoor modles belongs to double fan?
- A. NetCol500-A032
- B. NetCol500-A072
- C. NetCol500-A026
- D. NetCol500-A038
Answer: B
NEW QUESTION 111
Huawei monitoring system NetEco only can access to the equipment supported SNMP protocol.
- A. True
- B. False
Answer: B
NEW QUESTION 112
In the process of battery, battery can be direct sunshine, and don't have to do any sunshade measures.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 113
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 114
Dynamic environment monitoring system can be applied to () scene. (Multiple choice)
- A. data center room
- B. Unattended substation
- C. Transfer node machine room
- D. Wireless base station
Answer: A,B,C,D
NEW QUESTION 115
() is used to ensure that the extinguishing agent is sprayed in a specific jet to promote the rapid vaporization of the extinguishing agent and to achieve the extinguishing concentration within the protected space.
- A. Fire network
- B. extinguishing agent bottle group
- C. Nozzle
- D. Start the device
Answer: C
NEW QUESTION 116
Huawei NetEco monitoring system does not support remote door open.
- A. True
- B. False
Answer: B
NEW QUESTION 117
Which of the following funcation is supported by Huawei NetEco monitoring system? (Multiple choice)
- A. Battery monitoring
- B. Configuration Management
- C. Access Management
- D. Alarm Management
Answer: A,B,C,D
NEW QUESTION 118
The function of the following () parts is to help with oil return.
- A. oil sight glass
- B. Oil trap
- C. liquid lens
- D. reverse bend
Answer: B
NEW QUESTION 119
Which of the following is not a basic function of a low-voltage circuit breaker?
- A. Break
- B. Short circuit protection
- C. dual power switch
- D. Overcurrent protection
Answer: C
NEW QUESTION 120
During construction, touching sharp appliances should use ().
- A. seat belt
- B. helmets
- C. Insulation gloves
- D. anti-mechanical damage gloves
Answer: D
NEW QUESTION 121
The type of compressor used by Huawei air-cooled precision air conditioner is ().
- A. Screw type
- B. Scroll
- C. Centrifugal
- D. Reciprocating
Answer: B
NEW QUESTION 122
The principle of evaporator is to convert refrigerant from liquid to gas, take away the heat of the object to be refrigerated, to achieve refrigeration.
- A. True
- B. False
Answer: A
NEW QUESTION 123
Which is the unit of UPS rated capacity?
- A. Var
- B. Kw
- C. AH
- D. KVA
Answer: D
NEW QUESTION 124
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