Practice question

A TXV sensing bulb that has lost its charge will most likely cause the valve to:

  1. Hold a perfect superheat
  2. Default toward closed, starving the evaporator and reducing cooling
  3. Increase refrigerant charge
  4. Open the high-pressure switch

Answer: B — Default toward closed, starving the evaporator and reducing cooling

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: ASE S7 Air Conditioning Systems & Controls (School Bus) Practice Questions - ASE S7 - Air Conditioning Systems & Controls (School Bus) Certification Exam →