Huawei H12-411 Online Practice Questions and Exam Preparation

Huawei H12-411 Online Questions & Answers

• Question 141:

  ____________ is used to ensure that the fire extinguishing agent has been sprayed out in a specific jet form to promote the rapid gasification of the fire extinguishing agent and reach the fire extinguishing concentration in the protected space.

  Nozzle

• Question 142:

  Compared with comfort air conditioners, special air conditioners for computer rooms have the following advantages ____________ .

  large air volume, small enthalpy difference. High sensible heat ratio, more accurate temperature and humidity control. Year-round cooling

• Question 143:

  Huawei Monitoring System NETECO The system does not support remote door opening.

  A. True
  B. False
  B. False

• Question 144:

  R410a Refrigerants can produce the greenhouse effect and destroy the ozone layer.

  A. True
  B. False
  B. False

• Question 145:

  In the access control system interface, the functions that can be realized are ____________ .

  ABCD

• Question 146:

  In the main inverter mode, when the mains input voltage and frequency exceed ups When the allowable range isups Will be inverted from the main circuit. The mode shifts to static bypass mode.

  A. True
  B. False
  B. False

• Question 147:

  12V The battery is made of 6 indivual 2V It is composed of battery cells.

  A. True
  B. False
  A. True

• Question 148:

  Protective grounding: Grounding refers to the direct connection with the earth, and a certain point of the live part of an electrical device or electrical circuit is connected to a large point. When the electrical device or other device is normal, a certain point of the uncharged part is artificially connected to the earth.

  A. True
  B. False
  A. True

• Question 149:

  The abbreviation for valve-regulated lead-acid battery is VRLA.

  A. True
  B. False
  A. True

• Question 150:

  At present, the communication methods used by the dynamic environment monitoring system are ____________ .

  SNMP, Modbus, Dry contact