Duct and System Design Quiz

What was the main focus of the initial discussion on duct and system design?

• The importance of duct insulation

• The role of air filtration and the SALT test

• The cost of duct installation

• The history of air conditioning systems

Why is it important to size return ducts properly?

• To reduce noise levels

• To ensure proper air velocity and filtration

• To increase the lifespan of the air conditioning unit

• To minimize energy consumption

What is the rule of thumb for sizing a return air grill for a 2-ton unit?

• 15x15

• 20x20

• 25x25

• 10x10

What does a higher MERV rating indicate about a filter?

• It is less efficient

• It is more efficient

• It is cheaper

• It is more durable

Why might a dirty filter sometimes work better than a clean one?

• It allows more air to pass through

• It is easier to maintain

• It can filter out smaller particles

• It reduces static pressure