ASE T7 HVAC (Medium Heavy Truck) Practice Questions - ASE T7 - Heating, Ventilation & Air Conditioning (Medium Heavy Truck) Certification Exam

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Technician A says low airflow at the vents on a sleeper-cab truck can be caused by a clogged cabin air filter. Technician B says it can be caused by an evaporator iced over from a stuck-open expansion valve allowing too much refrigerant. Who is correct?

Technician A only Both A and B Technician B only Neither A nor B

Correct Answer:

Both A and B

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