Practice question

When using an electronic leak detector, the probe should be moved:

  1. Quickly across large areas to cover more ground
  2. Slowly along the bottom of hoses and fittings since refrigerant vapors are heavier than air
  3. Only around the compressor shaft seal
  4. Above all system components since refrigerant vapors rise

Answer: B — Slowly along the bottom of hoses and fittings since refrigerant vapors are heavier than air

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