Heating & A/C (A7)Pregunta 87 de 120
Technician A says a low refrigerant charge typically shows low readings on both gauges with poor cooling. Technician B says the leak should be repaired before recharging to the correct weight. Who is correct?
a.Technician A only
b.Technician B only
c.Both A and B
d.Neither A nor B
Explicación
An undercharge shows low readings on both gauges with weak cooling and rapid cycling, and any leak must be repaired before recharging by weight. Both technicians are correct. Dye or an electronic detector locates the leak source.
Practica las 120 preguntas gratis — sin registro.
Preguntas relacionadas de este tema
- Technician A says overcharging an A/C system improves cooling. Technician B says overcharging raises system pressures and can reduce cooling and damage the compressor. Who is correct?
- The expansion valve or orifice tube controls:
- The desiccant in a receiver-drier or accumulator is used to:
- Technician A says cabin heat comes from engine coolant flowing through the heater core. Technician B says a leaking heater core can fog the windshield and leave a sweet smell. Who is correct?
- Technician A says a stuck-closed blend-air door can cause no heat even with a good heater core. Technician B says a failed blower motor can cause no airflow from the vents. Who is correct?
- Before servicing an A/C system, refrigerant must be:
Última revisión: · proceso editorial
Equipo Editorial de PrepPass · Verificado con ASE Automobile Certification Series (A1–A8) · Cómo revisamos