Question 38Refrigeration/AC - QMED70% to pass
Loss of refrigerant during the process of purging of air and non-condensable gases can be kept to a minimum by what action?
AI Explanation
The correct answer is D) cracking the purge valve briefly and allowing the refrigerant to re-settle between purges.
This is the correct answer because briefly cracking the purge valve and allowing the refrigerant to re-settle between purges helps minimize the loss of refrigerant during the process of purging air and non-condensable gases. By allowing the refrigerant to re-settle, less refrigerant is expelled from the system during each purge cycle, reducing overall refrigerant loss.
The other options are incorrect because they do not directly address the key factor of minimizing refrigerant loss during the purging process. Purging through different valves or components may help with the purging process, but do not specifically target the issue of refrigerant loss.
Related Questions
#36 Traditionally, which of the listed refrigerants has been more suitable than the others for use in a centrifugal refrigeration compressor? #37 The amount of HCFC-123 in a storage cylinder is measured by what means? #39 Before charging a refrigeration unit, unless quick disconnect fittings are used, the refrigerant charging hoses should be prepared in what way? #40 Which of the illustrated gauges is capable of measuring vacuums at the micron level for the purpose of proving system dehydration during system evacuation with a vacuum pump, but displays the achieved vacuums at incremental threshold intervals rather than continuously? Illustration GS-RA-37 #41 Which of the following statements describes the accepted method for testing a thermostatic expansion valve?