HVAC and Vehicle AC Systems Quiz

What is the main function of the expansion valve in an HVAC system?

• To increase refrigerant pressure

• To reduce refrigerant pressure

• To cool the refrigerant

• To heat the refrigerant

Which component measures the temperature in the evaporator?

• Expansion valve

• Thermostatic bulb

• High-pressure inlet

• Thermal sensor

What does the evaporator do to the air passing through it?

• Increases humidity

• Cools and dehumidifies the air

• Heats the air

• Filters the air

What is the purpose of the drainage tray in the evaporator?

• To collect refrigerant

• To collect condensed water

• To filter air

• To increase airflow

Which type of HVAC system uses ducts to distribute conditioned air throughout a building?

• Rooftop system

• Variable refrigerant flow system

• Centralized system

• Split system

What is a common problem associated with the evaporator in vehicle AC systems?

• Overheating

• Dirt accumulation

• Excessive pressure

• Low refrigerant

What does HVAC stand for?

• Heating, Ventilation, and Air Quality

• Heating, Ventilation, and Air Conditioning

• Heating, Ventilation, and Air Control

• Heating, Ventilation, and Air Flow

What is the role of the compressor in a vehicle's AC system?

• To filter the air

• To regulate temperature

• To pressurize the refrigerant

• To cool the air

What can cause a foul odor in the vehicle's AC system?

• Mold or bacteria growth

• High pressure

• Dirt accumulation

• Low refrigerant

Which component is responsible for dissipating heat from the refrigerant?

• Expansion valve

• Condenser

• Compressor

• Evaporator