FREE ASHRAE HVAC System Design and Operation Questions and Answers

Question 1

What is the primary function of an HVAC system in a commercial building?

Accepted Answer

Regulate temperature, humidity, and air quality.

Answer

Improve exterior insulation.

Answer

Increase heating costs.

Answer

Eliminate airborne bacteria.

Question 2

Which component is responsible for removing heat from an HVAC system?

Accepted Answer

Evaporator coil

Answer

Compressor

Answer

Expansion valve

Answer

Air filter

Question 3

What is the main purpose of a Variable Air Volume (VAV) system?

Accepted Answer

Adjust airflow based on demand for efficiency.

Answer

Increase overall air velocity.

Answer

Reduce energy usage in heating applications.

Answer

Eliminate the need for ductwork.

Question 4

Why is duct insulation important in HVAC systems?

Accepted Answer

Minimizes energy loss and maintains temperature.

Answer

Prevents air contamination.

Answer

Eliminates the need for air filters.

Answer

Increases airflow speed.

Question 5

What is the benefit of using a heat recovery ventilation system?

Accepted Answer

Transfers heat between intake and exhaust air to save energy.

Answer

Enhances indoor humidity levels.

Answer

Eliminates the need for HVAC maintenance.

Answer

Increases system cooling capacity.

Question 6

What is the primary role of an HVAC thermostat?

Accepted Answer

Controls temperature by activating heating or cooling.

Answer

Regulates refrigerant levels.

Answer

Filters indoor air pollutants.

Answer

Monitors air quality.