Question 1

HVAC

Accepted Answer

Heating, Ventilation & Air Conditioning

Question 2

Refrigerant

Accepted Answer

Substance used for cooling and dehumidifying air in HVAC systems

Question 3

Evaporator

Accepted Answer

Component that absorbs heat from the air and cools it

Question 4

Condenser

Accepted Answer

Component that releases heat to the outside air

Question 5

Compressor

Accepted Answer

Device that pressurizes the refrigerant in the HVAC system

Question 6

Expansion valve

Accepted Answer

Component that controls the flow of refrigerant into the evaporator

Question 7

Receiver-dryer

Accepted Answer

Component that filters and dries the refrigerant

Question 8

Orifice tube

Accepted Answer

Restriction device used in some HVAC systems

Question 9

High-pressure side

Accepted Answer

Section of the HVAC system with higher pressure refrigerant

Question 10

Low-pressure side

Accepted Answer

Section of the HVAC system with lower pressure refrigerant

Question 11

Blend air door

Accepted Answer

Controls the mix of hot and cold air in the HVAC system

Question 12

Defrost mode

Accepted Answer

HVAC setting that removes condensation and ice from the windshield

Question 13

HVAC control module

Accepted Answer

Electronic control unit that regulates the HVAC system

Question 14

Heater core

Accepted Answer

Component that warms the air in the HVAC system

Question 15

Blower motor

Accepted Answer

Motor that powers the fan in the HVAC system

Question 16

Cabin air filter

Accepted Answer

Filter that removes dust and contaminants from the air entering the cabin

Question 17

Pressure switches

Accepted Answer

Devices that monitor the pressure levels in the HVAC system

Question 18

HVAC ducts

Accepted Answer

Channels that distribute air throughout the vehicle's interior

Question 19

Ambient temperature sensor

Accepted Answer

Sensor that measures the outside air temperature

Question 20

A/C clutch

Accepted Answer

Engages and disengages the compressor based on cooling demand

Question 21

HVAC system diagnostics

Accepted Answer

Procedures for troubleshooting and identifying issues

Question 22

HVAC system evacuation

Accepted Answer

Process of removing air and moisture from the system

Question 23

HVAC system recharge

Accepted Answer

Adding refrigerant to the system to reach proper levels

Question 24

HVAC system leak detection

Accepted Answer

Methods for finding and repairing refrigerant leaks

Question 25

HVAC system retrofit

Accepted Answer

Upgrading an older system to use a new type of refrigerant

Question 26

HVAC system recovery

Accepted Answer

Removing refrigerant from the system for service or repair

Question 27

HVAC system performance testing

Accepted Answer

Evaluating the system's cooling and heating capabilities

Question 28

HVAC system capacity

Accepted Answer

The amount of cooling or heating the system can provide

Question 29

HVAC system fan control

Accepted Answer

Regulating the speed and operation of the blower fan

Question 30

HVAC system air distribution

Accepted Answer

Directing air to different vents and outlets in the vehicle

Question 31

HVAC system blower resistor

Accepted Answer

Controls the speed of the blower motor

Question 32

HVAC system mode selection

Accepted Answer

Choosing between different airflow modes (e.g., floor, defrost, vents)

Question 33

HVAC system blend door actuator

Accepted Answer

Moves the blend air door to control temperature

Question 34

HVAC system recirculation mode

Accepted Answer

Circulating the cabin air instead of drawing in outside air

Question 35

HVAC system evaporator drain

Accepted Answer

Draining condensation from the evaporator

Question 36

HVAC system cabin pressure

Accepted Answer

Maintaining proper air pressure inside the cabin

Question 37

HVAC system heater control valve

Accepted Answer

Controls the flow of coolant to the heater core

Question 38

HVAC system temperature sensor

Accepted Answer

Measures the temperature of the air or coolant

Question 39

HVAC system blower motor relay

Accepted Answer

Controls power supply to the blower motor

Question 40

HVAC system vacuum pump

Accepted Answer

Removes air and moisture from the system during evacuation

Question 41

HVAC system heater hoses

Accepted Answer

Carries hot coolant to the heater core

Question 42

HVAC system evaporator temperature sensor

Accepted Answer

Measures the temperature of the evaporator

Question 43

HVAC system refrigerant pressure sensor

Accepted Answer

Monitors the pressure of the refrigerant

Question 44

HVAC system control panel

Accepted Answer

Interface for adjusting settings and controlling the system

ASE T7 HVAC Certification Flashcards