Huawei H12-411 Online Practice Questions and Exam Preparation

Huawei H12-411 Online Questions & Answers

• Question 71:

  The core components of the refrigeration system mainly include ____________ .

  evaporator, condenser, compressor, expansion valve

• Question 72:

  The following ____________ Circuit breakers are usually used ITLow-voltage circuit breaker for the load.

  MCB

• Question 73:

  The main purpose of the battery monitoring system is to ____________.

  monitor battery voltage, temperature, and internal resistance to ensure safe operation

• Question 74:

  The computer room air conditioner is suitable for scenarios ____________ .

  modular data centers, container data centers, medium and large data centers

• Question 75:

  Exist UPS in the system, the most comprehensive description of the role of the inverter circuit is ____________ .

  converting the rectified DC voltage of the mains or the battery voltage into AC voltage

• Question 76:

  The throttling devices used by Huawei's air-cooled precision air conditioners are ____________ .

  thermal expansion valve, electronic expansion valve

• Question 77:

  The function of the static transfer switch (STS) is to switch between two power sources automatically.

  A. True
  B. False
  A. True

• Question 78:

  same MCB Rated ultimate short-circuit breaking capacity of circuit breaker LCU Generally less than the rated operating short-circuit breaking capacity LCS.

  A. True
  B. False
  B. False

• Question 79:

  The compressor is the core of the refrigeration cycle. It is the power device for the refrigerant to circulate in the system. It reduces the low temperature from the evaporator. The compressed steam is compressed into high temperature and high pressure steam.

  A. True
  B. False
  A. True

• Question 80:

  The fuse can protect personal safety when the equipment leaks.

  A. True
  B. False
  B. False