ASCS Cleaning Methods and Techniques

Question 1

What is the primary method used to remove debris from air ducts during cleaning?

Accepted Answer

Source removal

Answer

Source removal is the most effective method for air duct cleaning, using mechanical agitation and vacuum collection to extract debris.

Question 2

Which tool is commonly used for mechanical agitation in air duct cleaning?

Accepted Answer

Rotary brush

Answer

Rotary brushes are commonly used to loosen dust and debris inside air ducts before vacuum collection.

Question 3

What type of vacuum is recommended for effective air duct cleaning?

Accepted Answer

HEPA-filtered vacuum

Answer

HEPA-filtered vacuums are ideal for air duct cleaning as they capture fine particles and prevent them from being released back into the air.

Question 4

Which method is used to verify cleanliness after air duct cleaning?

Accepted Answer

Visual inspection

Answer

A visual inspection is the most common method for verifying cleanliness, ensuring no dust or debris remains in the ducts.

Question 5

What is the purpose of negative air pressure in air duct cleaning?

Accepted Answer

Prevent contaminants from escaping

Answer

Negative air pressure prevents contaminants from escaping into the indoor environment during duct cleaning by containing them within the system.

(ASCS) Air Systems Cleaning Specialist Certification Practice Test