Free H12-411 Exam Braindumps (page: 18)

Page 17 of 47

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.

  1. True
  2. False

Answer(s): A



Cryogenic components improve the continuous low pressure caused by low temperature start-up, thus allowing the air conditioner to start up normally.

  1. TRUE
  2. FALSE

Answer(s): A



Common communication equipment ways have RS232, RS485, FE, etc.

  1. TRUE
  2. FALSE

Answer(s): A



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.

  1. True
  2. False

Answer(s): A






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