HVAC Trainee

HVAC Trainee Interview Questions and Answers

Updated 7 Nov 2022

Q1. What is Chiller, AHU,vrv

Ans.

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

Q2. Full Form of HVAC and AC

Ans.

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.

Q3. What is BTU and CFM

Ans.

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

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