______ temperature coefficient thermistors are typically used in automotive HVAC applications.

In the automotive climate control system, the ______ measures the temperature of the outside air.

Tech A states that the fully automatic system control panel typically has an Auto mode that takes care of the entire system. Tech B states that the control panel usually has a digital display to show the temperature selected. Who is correct?

Tech A states that with dual-zone temperature controls, the air box must have two blend doors and two blend door actuators. Tech B states that the dual-zone temperature control panel contains the same buttons used in other systems but has two temperature control switches. Who is correct?

_______ HVAC system uses an ECU to determine when to run the compressor and the amount of heat required to match and maintain the desired temperature selected by the operator.

Technician A says that some people refer to the blower motor fan as a squirrel fan. Technician B says that changing the blower fan speed can be done by using a solenoid. Who is correct?

The air box typically contains two doors to control temperature and function. They are known as the blend door and the _______ door.

Technician A says that a vacuum servo can be controlled electronically. Technician B says that when vacuum is released from a vacuum servo, the spring will push the diaphragm back to its starting position. Who is correct?

The door that is responsible for shutting off outside airflow to the cabin when Max A/C is selected is the:

Many new vehicles are designed with HVAC systems that have built-in:

If a vehicle uses _______ servos to control the HVAC mode doors and blend door, failure in the vacuum hose(s) can result in failed operation.

_______ is necessary for checking DTC's in the ECU of the HVAC system and for performing bidirectional control of electrical loads.

If the HVAC system is computer controlled, the HVAC check should be done after a performance test, as some codes will cause the computer to store or fix the HVAC system to prevent it.

Technician A says that to check the cooling fan operation, you may be able to use bidirectional controls on the scan tool. Technician B says a scan tool is the only tool required for testing the cooling fan. Who is correct?

Tools required in diagnosing temperature control problems in the HVAC system include all of the following EXCEPT:

A jammed blower motor fan could result in:

Which three is a difference in the speed of the vent airflow with the system in recirculation mode compared to fresh air mode, may indicate:

A good way to check for a jammed blower motor fan is to measure the blower motor amperage with the fan switched on.

If the resistance of the clutch windings do not match the manufacturer's specifications, the ______ should be replaced.