In an orifice tube type AC system, an undercharge of refrigerant in a system will cause:

Unloaded performance test is being performed. The low side pressure is 25 psig. The center vent temperature is ________ oF UPerfTestSm.jpg [BLANK-1]

Tech A says that when diagnosing a problem with a fan, a digital volt-ohmmeter (DVOM) may need to be used. Tech B says that a mechanical fan with a viscous clutch cannot fail. Who is correct?

The BILEVEL mode is being discussed. Technician A says air may be directed to the panel and floor in the cooling mode. Technician B says air may be directed to the panel and floor in the heating mode. Who is correct?

An A/C system cools the air by moving heat from the confined space of the passenger compartment to the engine cooling system.

All of the following statements about a typical system set to MAX (maximum) cooling are true, EXCEPT:

Heat is transferred from areas of:

An odor emitting from the case and duct system may be caused by all of the following, EXCEPT:

Heat always flows from a warmer object to a colder one.

Tech A says that electrolysis in the cooling system can be due to faulty grounds in the electrical system. Tech B says that electrolysis can be the result of improper coolant maintenance. Who is correct?