Ase a7 Study guides, Class notes & Summaries

A CCOT system has a high high side. Technician A says to suspect the thermostatic expansion valve. Technician B says this system contains an orifice tube. Who is correct? - ANSWER-TECH B is correct. A clogged orifice tube will result in high high side pressure. It can become clogged with contaminants, debris from a damaged compressor, or a broken desiccant bag releasing desiccant into the refrigerant. A vehicle's air conditioning performance is reduced at low speeds and stop lights, but cools...

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D. (used on a orifice tube system to absorb moisture also stores vaporized refrigerant to be sent to the compressor) Which A/C system device is in the figure above? A. Evaporator core B. Receiver/drier C. Muffler D. Accumulator/drier B. What is the LEAST LIKELY condition that could cause a blower resistor thermal element to burn up? A. Tight blower motor bearing B. Open blower motor winding C. Wire rubbing a metal bracket D. Blower motor fan blade rubbing the duct D. (the serv...

Tech A says that evacuating an AC system will remove air and moisture from the system. Tech B says evacuating an AC system removes dirt particles. Who is right? - ANSWER-A. Evacuating the system removes air and moisture. The receiver drier may contain a filter or strainer to catch and trap foreign particles and dirt, but this remains in the drier and is not removed during evacuation. There is a growling/rumbling noise at the AC compressor when the system is off and the engine is running. The ...

ASE A7 HVAC EXAM 2023 WITH QUESTIONS AND ANSWERS ...

ASE A7 Test Prep – Heating and A/C - Questions, Answers and Explanations Technician A says that the pressure cycling switch is usually located on the accumulator. Technician B says that the refrigerant must be recovered from the system before the switch can be removed. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B The pressure cycling switch senses the low-side pressure near the evaporator outlet and is usually found on the accumulator. Technician B ...

ASE A7 Practice Test 2024 Edition Questions and Answers

QUESTIONS AND ANSWERS

A CCOT system has a high high side. Technician A says to suspect the thermostatic expansion valve. Technician B says this system contains an orifice tube. Who is correct? - correct answer TECH B is correct. A clogged orifice tube will result in high high side pressure. It can become clogged with contaminants, debris from a damaged compressor, or a broken desiccant bag releasing desiccant into the refrigerant. A vehicle's air conditioning performance is reduced at low sp...