H12-411 Exam Dumps Pass with Updated Nov-2021 Tests Dumps
H12-411 exam questions for practice in 2021 Updated 185 Questions
Huawei H12-411 Exam Syllabus Topics:
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NEW QUESTION 46
Protective grounding: grounding refers to the direct connection with the earth, electrical installations or electrical parts of the live part of a point connected with the earth, electrical installations or other devices are not charged part of the normal point of the earth and man-made connection.
- A. True
- B. False
Answer: A
NEW QUESTION 47
Which of the following component can improve the heat exchanger heat exchange capability?
- A. Two-way valve
- B. Electric heating
- C. Condensate pump
- D. Fan
Answer: D
NEW QUESTION 48
Huawei NetEco monitoring system supports video real-time browsing.
- A. True
- B. False
Answer: A
NEW QUESTION 49
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 50
Huawei NetEco monitoring system supports hierarchical network management functions.
- A. True
- B. False
Answer: A
NEW QUESTION 51
Which of the following is advantages of the UPS 2N system? (Multiple choice)
- A. The UPS system can be serviced without switching the load to maintenance bypass mode
- B. no single path fault point
- C. Power supply redundancy
- D. numerous redundant components, high cost
Answer: A,B,C
NEW QUESTION 52
The principle of the condenser is to cool and release the high-pressure gaseous refrigerant to the liquid state to realize the heat transfer and release.
- A. True
- B. False
Answer: A
NEW QUESTION 53
() is a fire detector that detects smoke particles.
- A. temperature detector
B VESDA - B. sound and light alarm
- C. Smoke detector
Answer: B
NEW QUESTION 54
ATS Dual Power Automatic Transfer Switch can achieve the switching of two-way power's fast loading machine.
- A. True
- B. False
Answer: A
NEW QUESTION 55
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 56
In the UPS system, the most comprehensive description of the role of the inverter circuit is?
- A. The battery voltage is converted to AC voltage
- B. Convert AC to DC
- C. Convert the rectified DC voltage or battery voltage into AC voltage
- D. Convert the rectified DC voltage into AC voltage
Answer: C
NEW QUESTION 57
In low-voltage power distribution systems, the role of the PE line is to provide a return path for the fault current in the event of a power system failure.
- A. True
- B. False
Answer: A
NEW QUESTION 58
UPS can clean electricity input, output stable exchange, to protect the load
- A. True
- B. False
Answer: A
NEW QUESTION 59
The following () is the correct description of 6 fixed VRLA single battery series. The rated capacity is 150Ah.
- A. 6-GMF-150
- B. 150-GFM-6
- C. MF-150
- D. 6-GFM-150
Answer: D
NEW QUESTION 60
Which of the following is the correct indication of a fixed valve-regulated lead-acid batteries with 2V single cell, rated capacity of 800Ah?
- A. GFM-800
- B. 800-GMF-1
- C. 1-GFM-800
- D. 800-GFM-1
Answer: A
NEW QUESTION 61
MCB circuit breaker can be divided into B, C, D, Z, K class according to different tripping characteristics. For IT loads, the () level tripping characteristics should be used.
- A. C
- B. D
- C. Z
- D. B
Answer: A
NEW QUESTION 62
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 63
Valve-regulated lead-acid batteries in English abbreviation is VRLA.
- A. True
- B. False
Answer: A
NEW QUESTION 64
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 65
The smaller the PUE value of a data center room, the greater the power consumed by the data center infrastructure such as cooling and power supply.
- A. True
- B. False
Answer: B
NEW QUESTION 66
The main role of () is electricity distribution, in accordance with the requirements, standards and norms, assigns the forestage electric energy to various types of electrical equipments, such as UPS, air conditioners, lighting equipment and so on.
- A. High voltage power distribution system
- B. Medium voltage power distribution system
- C. DC power distribution system
- D. Low voltage power distribution system
Answer: D
NEW QUESTION 67
Administrators can not control the login time and login IP address of other users through Huawei NetEco.
- A. True
- B. False
Answer: B
NEW QUESTION 68
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