Air Systems Cleaning Specialist (ASCS) Free Practice Exam Questions

20 real Air Systems Cleaning Specialist (ASCS) exam questions with answers and AI explanations. NADCA certification prep — page 2 of 2.

1. Question 11: According to ACR, The NADCA Standard, properly performed HVAC system cleaning services should:
2. Question 12: Of the following, which is the MOST aggressive agitation tool available for cleaning HVAC systems?
3. Question 13: What does ACR, The NADCA Standard recommend while cleaning internally-lined fiberglass ductwork, microbial contamination is observed within the fiberglass line…
4. Question 14: After completion of an air duct cleaning and visual inspection, the client states, "I expected the ducts to be cleaner.” What is the next step an ASCS should r…
5. Question 15: According to The NADCA White Paper on Using Chemical Products in HVAC Systems, The Environmental Protection Agency (EPA) has not registered any product for use…
6. Question 16: During a water damage restoration, the Institute of Inspection Cleaning and Restoration Certification (IICRC) Standard S500 states HVAC systems should
7. Question 17: A package unit contains which of the following components?
8. Question 18: What type of supply fan transfers large volumes of air with a minimal wheel diameter?
9. Question 19: A mechanical means of agitation which an ASCS can use to clean ductwork is:
10. Question 20: According to ACR, The NADCA Standard, which of the following is the PRIMARY purpose of a written work plan?