Technician A says changing refrigerant from a gas to a liquid causes it to absorb heat. Technician B says the system refrigerant is used over and over. Who is right?

The spring lock coupling contains all of the following parts, except:

Which O-rings are used on R-134a systems?

All of the following statements about air doors are true, except:

Technician A says Schrader valves are used on R-134a system service valves. Technician B says every type of refrigerant is supposed to have a different service connection. Who is right?

All of the following statements about condensers are true, except:

The blend door controls the _____ of the air entering the passenger compartment.

Technician A says a multiple-pass plate and fin evaporator can be spotted by the use of an oil return line. Technician B says the multiple-pass plate and fin evaporator has been replaced by a later design. Who is right?

All of the following statements about tube and fin coils are true, except:

All of the following statements about axial compressors are true, except: