Quiz on Principles of Air Conditioning Systems

What does refrigeration primarily do?

• Increases humidity

• Removes heat from a space

• Adds thermal energy

• Creates cool air

Which of the following is a common refrigerant?

• Nitrogen

• Ammonia

• Water

• Oxygen

What is the function of the compressor in a vapor compression refrigeration cycle?

• Absorbs heat

• Regulates refrigerant flow

• Condenses refrigerant

• Compresses refrigerant into high-pressure vapor

What is the purpose of the expansion valve?

• To condense refrigerant

• To compress refrigerant

• To regulate refrigerant flow and decrease pressure

• To absorb heat

What type of cooling system uses water-soaked pads?

• Thermoelectric refrigeration

• Evaporative cooling

• Vapor absorption

• Mechanical compression

What does HVAC stand for?

• Heating, Ventilation, and Air Control

• Heating, Ventilation, and Air Conditioning

• Heating, Ventilation, and Air Circulation

• Heating, Ventilation, and Air Cooling

What is the Coefficient of Performance (COP)?

• The efficiency of the evaporator

• The amount of heat removed per hour

• The ratio of cooling capacity to power consumption

• The total energy used by the system

Which system does not use refrigerant or water?

• Mechanical compression

• Thermoelectric refrigeration

• Vapor absorption

• Evaporative cooling

What is the cooling capacity measured in?

• Watts

• BTUh

• Cubic meters

• Kilograms

What is the primary function of the evaporator?

• To condense refrigerant

• To compress refrigerant

• To regulate refrigerant flow

• To absorb heat from the space