Air Conditioning System Components: Master the Basics for HVAC Success

Question 1

In an air conditioning system, which component compresses the refrigerant gas?

Accepted Answer

Compressor

Answer

Condenser

Answer

Evaporator

Answer

Expansion valve

Question 2

In an air conditioning system, which component compresses the refrigerant gas?

Accepted Answer

Compressor

Answer

Condenser

Answer

Evaporator

Answer

Expansion valve

Question 3

In an air conditioning system, which component regulates refrigerant flow into the evaporator, affecting system efficiency and cooling capacity?

Accepted Answer

Expansion valve

Answer

Compressor

Answer

Condenser

Answer

Filter

Question 4

Which design feature of an air conditioning condenser enhances heat transfer and improves system efficiency?

Accepted Answer

Larger condenser coil surface area

Answer

Smaller condenser coil surface area

Answer

Thicker condenser coils

Answer

Slower air velocity across the coil

Question 5

Which component of an air conditioning system is responsible for compressing the refrigerant?

Accepted Answer

Compressor

Answer

Condenser

Answer

Evaporator

Answer

Expansion valve

Question 6

What is the main function of a condenser in an air conditioning system?

Accepted Answer

To release heat into the surrounding environment

Answer

To absorb heat from the refrigerant

Answer

To expand the refrigerant before it enters the evaporator

Answer

To filter dust and debris from the air

Question 7

Which component of an air conditioning system cools the air inside the building?

Accepted Answer

Evaporator

Answer

Condenser

Answer

Expansion valve

Answer

Compressor

Question 8

What is the purpose of an expansion valve in a refrigeration system?

Accepted Answer

To regulate the flow of refrigerant

Answer

To remove moisture from the air

Answer

To collect condensation

Answer

To lubricate the compressor

Question 9

What safety precautions should be taken while working on an air conditioning system?

Accepted Answer

Wear protective gear, isolate the system, and ensure proper ventilation

Answer

Use only soapy water to clean the system

Answer

Never attempt to repair the system while it is operating

Answer

Inspect the system regularly for pests

Question 10

What is the primary function of a thermostat in an air conditioning system?

Accepted Answer

To regulate the temperature of the conditioned space

Answer

To monitor the refrigerant pressure

Answer

To control the fan speed

Answer

To detect smoke and fire hazards

Question 11

Which component in an air conditioning system is responsible for removing moisture from the air, aiding in the process of dehumidification?

Accepted Answer

Evaporator

Answer

Compressor

Answer

Condenser

Answer

Expansion valve

Question 12

What is the purpose of the condenser in an air conditioning system?

Accepted Answer

Removing heat from the refrigerant

Answer

Lowering the pressure of the refrigerant

Answer

Filtering impurities from the refrigerant

Answer

Circulating air throughout the system

Question 13

Where does the evaporation of refrigerant occur in an air conditioning system?

Accepted Answer

Evaporator

Answer

Compressor

Answer

Condenser

Answer

Expansion valve

Question 14

What is the primary role of an expansion valve in an air conditioning system?

Accepted Answer

Control the flow of refrigerant

Answer

Adjust the temperature of the refrigerant

Answer

Remove impurities from the refrigerant

Answer

Increase the pressure of the refrigerant

Question 15

Which of the following components is NOT typically found in an air conditioning system?

Accepted Answer

Furnace

Answer

Compressor

Answer

Condenser

Answer

Evaporator

Question 16

What is the primary purpose of a filter drier in an air conditioning system?

Accepted Answer

Remove moisture and impurities from the refrigerant

Answer

Adjust the pressure of the refrigerant

Answer

Lubricate the compressor

Answer

Detect refrigerant leaks

Question 17

Which tool is commonly used to measure the temperature and pressure of refrigerants in an air conditioning system?

Accepted Answer

Manometer

Answer

Multimeter

Answer

Thermometer

Answer

Anemometer

Question 18

In residential air conditioning systems, which compressor type employs a scroll mechanism to compress the refrigerant gas?

Accepted Answer

Scroll compressor

Answer

Reciprocating compressor

Answer

Centrifugal compressor

Answer

Rotary compressor

Question 19

In an air conditioning system, what component is responsible for absorbing heat from the indoor air?

Accepted Answer

Evaporator

Answer

Compressor

Answer

Condenser

Answer

Expansion valve

Question 20

Which type of refrigerant is most commonly employed in residential air conditioning systems?

Accepted Answer

R-410A

Answer

R-22

Answer

R-134a

Answer

R-407C

Question 21

Which component in an air conditioning system is responsible for increasing the pressure of the refrigerant?

Accepted Answer

Compressor

Answer

Condenser

Answer

Evaporator

Answer

Thermostat

Question 22

What is the primary purpose of a condenser in an air conditioning system?

Accepted Answer

To remove heat from the refrigerant

Answer

To cool the indoor air

Answer

To circulate the refrigerant

Answer

To control the temperature of the system

Question 23

What is the primary function of a thermostat in an air conditioning system?

Accepted Answer

To monitor the temperature and regulate the system's operation

Answer

To filter the air

Answer

To circulate the refrigerant

Answer

To remove heat from the refrigerant

Question 24

What is the recommended frequency for maintenance of an air conditioning system?

Accepted Answer

Annually

Answer

Monthly

Answer

Quarterly

Answer

Every few years

Question 25

What is the role of an expansion valve in an air conditioning system?

Accepted Answer

Regulating refrigerant flow

Answer

Removing heat from the refrigerant

Answer

Circulating the refrigerant

Answer

Sensing the system's temperature

Question 26

Which of the following is the primary function of a compressor in an air conditioning system?

Accepted Answer

Increase pressure and temperature of refrigerant

Answer

Circulate refrigerant through the evaporator

Answer

Remove heat from the air

Answer

Cool the air

Question 27

Where does the heat from the indoor air transfer to in an air conditioning system?

Accepted Answer

Refrigerant in the evaporator

Answer

Refrigerant in the condenser

Answer

Outdoor air

Answer

Air filter

Question 28

Which component of an air conditioning system is responsible for cooling the refrigerant?

Accepted Answer

Evaporator

Answer

Compressor

Answer

Condenser

Answer

Thermostat

Question 29

What type of refrigerant is commonly used in modern air conditioning systems?

Accepted Answer

R-410A

Answer

R-12

Answer

R-22

Answer

R-134a

Question 30

Which of the following is a characteristic of a split air conditioning system?

Accepted Answer

Condenser and evaporator in separate units

Answer

Condenser and evaporator in one unit

Answer

Uses refrigerant only to cool the air

Answer

Requires a separate heating system

Question 31

What is the purpose of a capillary tube in an air conditioning system?

Accepted Answer

Restrict refrigerant flow and maintain system pressure

Answer

Allow for expansion of the refrigerant

Answer

Filter out impurities in the refrigerant

Answer

Measure the temperature of the refrigerant

Question 32

What is the recommended temperature setting for most air conditioning systems during summertime?

Accepted Answer

68-72°F (20-22.2°C)

Answer

60-65°F (15.6-18.3°C)

Answer

75-78°F (23.9-25.6°C)

Answer

80-85°F (26.7-29.4°C)

Question 33

What is the purpose of a sight glass in an air conditioning system?

Accepted Answer

Monitor refrigerant flow

Answer

Measure refrigerant pressure

Answer

Adjust refrigerant charge

Answer

Lubricate the compressor

Question 34

Which type of air conditioning system is best suited for a large commercial building?

Accepted Answer

Central system

Answer

Window unit

Answer

Wall-mounted unit

Answer

Portable unit

Question 35

In an air conditioning system, which component is responsible for removing moisture from the air?

Accepted Answer

Evaporator

Answer

Compressor

Answer

Condenser

Answer

Expansion valve

Question 36

Which design feature of an air conditioning condenser optimizes heat transfer, leading to improved system efficiency?

Accepted Answer

Expanded surface area

Answer

Increased operating pressure

Answer

Multiple refrigerant circuits

Question 37

In an air conditioning system, which component regulates the flow of refrigerant entering the evaporator, influencing system efficiency and cooling capacity?

Accepted Answer

Expansion Valve

Answer

Condenser

Answer

Compressor

Answer

Evaporator

Question 38

Which component of an air conditioning system compresses the refrigerant gas, increasing its pressure and temperature?

Accepted Answer

Compressor

Answer

Expansion valve

Answer

Condenser

Answer

Evaporator

Question 39

In an air conditioning system, what is the primary function of the condenser?

Accepted Answer

To release heat from the refrigerant, allowing it to condense into a liquid.

Answer

To absorb heat from the air being cooled.

Answer

To expand the refrigerant, lowering its pressure.

Answer

To regulate the flow of refrigerant through the system.

Question 40

Which component in an air conditioning system is responsible for absorbing heat from the air being cooled?

Accepted Answer

Evaporator

Answer

Compressor

Answer

Condenser

Answer

Expansion valve

Question 41

Which component of an air conditioning system controls the flow rate of refrigerant, adjusting it based on system conditions?

Accepted Answer

Thermostatic expansion valve

Answer

Condenser

Answer

Evaporator

Answer

Compressor

Question 42

What is the purpose of a filter drier in an air conditioning system?

Accepted Answer

To remove moisture and contaminants from the refrigerant, preventing system damage.

Answer

To cool the refrigerant, lowering its temperature.

Answer

To expand the refrigerant, reducing its pressure.

Question 43

In an air conditioning system, which component circulates air across the evaporator coil, facilitating heat transfer?

Accepted Answer

Blower fan

Answer

Expansion valve

Answer

Condenser fan

Answer

Compressor

Question 44

What is the primary function of a suction line accumulator in an air conditioning system?

Accepted Answer

To prevent liquid refrigerant from entering the compressor, protecting against damage.

Answer

To cool the refrigerant, reducing its temperature.

Answer

To expand the refrigerant, lowering its pressure.

Question 45

Which component of an air conditioning system releases heat from the refrigerant to the outside environment?

Accepted Answer

Condenser coil

Answer

Blower fan

Answer

Evaporator coil

Answer

Expansion valve

Question 46

Which component of an air conditioning system compresses refrigerant vapor?

Accepted Answer

Compressor

Answer

Expansion valve

Answer

Condenser

Answer

Evaporator

Question 47

Within an air conditioning system, in which component does the refrigerant undergo a phase change from liquid to gas?

Accepted Answer

Evaporator

Answer

Filter

Answer

Receiver

Answer

Condenser

Question 48

Which component is responsible for releasing heat from the refrigerant in an air conditioning system?

Accepted Answer

Condenser

Answer

Expansion valve

Answer

Evaporator

Answer

Compressor

Question 49

In an air conditioning system, what is the primary purpose of the expansion valve?

Accepted Answer

To control the flow of refrigerant into the evaporator

Answer

To compress refrigerant vapor

Answer

To filter the refrigerant

Question 50

What is the primary function of the condenser fan in an air conditioning system?

Accepted Answer

To dissipate heat from the condenser coils

Answer

To compress refrigerant vapor

Answer

To expand refrigerant liquid

Answer

To circulate air over the evaporator coils

Question 51

In an air conditioning system, the filter drier serves what primary purpose?

Accepted Answer

To remove moisture and contaminants from the refrigerant

Answer

To cool the refrigerant

Answer

To circulate the refrigerant

Question 52

In an air conditioning system, what is the primary function of the accumulator?

Accepted Answer

To prevent liquid refrigerant from entering the compressor

Answer

To cool the refrigerant

Answer

To store refrigerant