313D Fundamentals of Air Conditioning Systems

Question 1

What is the primary function of an evaporator coil in an air conditioning system?

Accepted Answer

Absorb heat from indoor air

Answer

Compress refrigerant to high pressure

Answer

Release heat to outdoor air

Answer

Regulate refrigerant flow

Question 2

Which component of the system compresses refrigerant to increase its pressure and temperature?

Accepted Answer

Compressor

Answer

Condenser coil

Answer

Expansion valve

Answer

Evaporator coil

Question 3

What occurs to the refrigerant in the condenser coil during the refrigeration cycle?

Accepted Answer

It releases heat and condenses into a liquid

Answer

It absorbs heat and vaporizes

Answer

It expands and cools

Answer

It decreases in pressure

Question 4

Which principle explains the heat absorption in the evaporator coil?

Accepted Answer

Latent heat transfer during phase change

Answer

Sensible heat transfer

Answer

Thermal conduction

Answer

Adiabatic cooling

Question 5

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

Accepted Answer

Reduce refrigerant pressure and temperature

Answer

Control the flow of outdoor air

Answer

Compress the refrigerant

Answer

Condense the refrigerant

Question 6

Why is refrigerant with a low boiling point ideal for air conditioning systems?

Accepted Answer

It ensures efficient heat absorption at room temperature

Answer

It condenses easily in the evaporator

Answer

It prevents overcooling

Answer

It minimizes energy use