Air Systems Cleaning Specialist (ASCS) — Question 19

A mechanical means of agitation which an ASCS can use to clean ductwork is:

Answer options

• A. compressed air needle gun.
• B. compressed air washing.
• C. water blasting.
• D. sand blasting.

Correct answer: C

Explanation

Water blasting is effective for cleaning ductwork because it utilizes high-pressure water to remove debris and contaminants. The other options, while they may be used for cleaning, are not specifically mechanical means of agitation suited for ductwork cleaning in the same way that water blasting is.