HVAC Trainee Interview Questions and Answers

Chiller is a machine that cools water or air for air conditioning systems. AHU is a device that circulates air in a building. VRV is a type of HVAC system that uses refrigerant to cool or heat multiple rooms.

• Chiller cools water or air for air conditioning systems

• AHU circulates air in a building

• VRV uses refrigerant to cool or heat multiple rooms

• AHU and VRV are components of HVAC systems

HVAC stands for Heating, Ventilation, and Air Conditioning. AC stands for Air Conditioning.

• HVAC refers to the entire system that controls the temperature, humidity, and air quality of a building.

• AC specifically refers to the cooling aspect of the HVAC system.

• Examples of HVAC components include furnaces, air handlers, ductwork, and thermostats.

• Examples of AC components include compressors, evaporators, and condensers.

BTU is a unit of measurement for heat energy while CFM is a unit of measurement for air flow.

• BTU stands for British Thermal Unit and is used to measure the amount of heat energy needed to raise the temperature of one pound of water by one degree Fahrenheit.

• CFM stands for Cubic Feet per Minute and is used to measure the amount of air flow in a space.

• In HVAC systems, BTU is used to determine the heating or cooling capacity needed for a space while CFM is used to determine the s...read more