HVAC Basics

What is the purpose of air conditioning?

• To provide light in the room

• To control temperature, humidity, and air quality

• To make the air smell better

• To keep insects away

Name three common HVAC components.

• 1. Air conditioner 2. Furnace 3. Thermostat

• 1. Water heater 2. Dishwasher 3. Washing machine

• 1. Microwave 2. Blender 3. Toaster

• 1. Radiator 2. Dehumidifier 3. Ceiling fan

What is the function of an evaporator coil in an HVAC system?

• Absorbing heat from the air

• Regulating the flow of electricity

• Filtering dust from the air

• Releasing heat into the air

Explain the role of a compressor in an air conditioning system.

• It decreases the pressure and temperature of the refrigerant gas.

• It increases the pressure and temperature of the refrigerant gas.

• It only works when the air conditioning system is turned off.

• It has no role in the air conditioning system.

What are the primary types of air conditioning systems?

• Radiant floor heating, baseboard heaters, and wood stoves

• Central air conditioning, ductless mini-split systems, window units, and portable air conditioners

• Ceiling fans, swamp coolers, and dehumidifiers

• Humidifiers, air purifiers, and space heaters

What is the difference between a split system and a packaged unit?

• The split system has separate indoor and outdoor units, while the packaged unit has all components in one outdoor unit.

• The split system is more energy efficient than the packaged unit.

• The split system uses ducts to distribute air, while the packaged unit does not use ducts.

• The split system has all components in one outdoor unit, while the packaged unit has separate indoor and outdoor units.

Describe the function of a thermostat in an HVAC system.

• Controlling the humidity level

• Regulating the temperature

• Adjusting the air pressure

• Switching the power on and off

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

• To remove dust, pollen, and other particles from the air

• To make the air smell better

• To add more dust and pollen to the air

• To cool down the air

Explain the concept of refrigerant in an air conditioning system.

• Refrigerant is a type of filter used to clean the air in air conditioning systems.

• Refrigerant is a substance used to absorb and release heat in an air conditioning system.

• Refrigerant is a type of insulation used in air conditioning systems.

• Refrigerant is a type of fuel used to power air conditioning systems.

What are the key factors to consider when selecting an HVAC system for a building?

• Size of the building, energy efficiency, cost, and maintenance requirements

• Color of the walls, type of flooring, and furniture design

• Number of windows, location of the building, and nearby restaurants

• Brand of the HVAC system, color of the roof, and type of door handles