Free H12-411_V2.0 Exam Braindumps (page: 12)

Page 11 of 52

RS485 The interface only supports two-wire system, not four-wire system.

  1. True
  2. False

Answer(s): B



For valve-regulated lead-acid batteries, the function of the safety valve is _______________.

  1. eliminate excess gas and prevent air from entering

Answer(s): A



There are three different classifications of grounding forms in low-voltage power distribution ________________ systems, where the first capital letter represents ________________.

  1. TNTTIT, the relationship between the power system and the ground

Answer(s): A



During the construction process, carry out low-voltage live work_______________, should be used_______________.

  1. 1KV the following, insulating shoes, insulating gloves, insulating clothing

Answer(s): A






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