Ase A7 - Heating & A/c Questions And Answers 100% Verified A+ Guaranteed

When using an electronic refrigerant leak detector, all of the following should be observed EXCEPT: A. Leak detectors are very sensitive to many types of gases. If the area is contaminated with refrigerant or other gases, use a fan or compressed air to blow the excess refrigerant away. B. Pass the probe around the top of components and hoses as refrigerant is lighter than air and tends to rise. C. Don't move the probe faster than one inch per second. D. Never allow the probe to contact any surface, to prevent contamination of the sensing tip. {Ans: The correct answer is B. Make sure that you pass the probe around the bottom of the components and hoses as refrigerant is heavier than air and tends to settle.}All of the following could cause lower than normal high-side pressure EXCEPT: A. missing air dam B. low refrigerant charge C. worn compressor D. restricted orifice tube {Ans: The correct answer is A. A lower than normal refrigerant charge and excessive internal wear would both cause the compressor to develop less discharge pressure. A restricted orifice tune would cause refrigerant flow through the system to be slowed. When the refrigerant spends more