ASCS Quality Assurance & Compliance 2

Question 1

Which NADCA standard establishes the benchmark cleanliness level for HVAC system components after cleaning?

Accepted Answer

NADCA ACR 2013

Answer

NADCA ACR 2013 (Assessment, Cleaning, and Restoration of HVAC Systems) sets the industry benchmark for cleanliness verification.

Question 2

When performing a visual inspection of ductwork post-cleaning, which lighting level is recommended by NADCA for adequate assessment?

Accepted Answer

50 foot-candles at the duct surface

Answer

NADCA recommends a minimum of 50 foot-candles of illumination at the duct surface to conduct an adequate visual inspection.

Question 3

A client requests third-party verification of duct cleanliness. Which test method involves collecting a surface sample and analyzing it under a microscope?

Accepted Answer

Tape lift sample

Answer

A tape lift sample collects debris from duct surfaces and is analyzed microscopically to quantify contamination levels.

Question 4

Under NADCA guidelines, what is the maximum acceptable level of non-fibrous particulate on duct surfaces after cleaning?

Accepted Answer

0.75 mg per 100 cm²

Answer

NADCA ACR 2013 specifies that non-fibrous particulate should not exceed 0.75 mg per 100 cm² after cleaning.

Question 5

Which document should an ASCS technician provide to the building owner upon project completion to demonstrate compliance?

Accepted Answer

Project completion report with pre/post inspection findings

Answer

A project completion report documenting pre- and post-cleaning inspection findings demonstrates that work met NADCA standards.

(ASCS) Air Systems Cleaning Specialist Certification Practice Test

(ASCS) Air Systems Cleaning Specialist Certification Practice Test

ASCS Quality Assurance & Compliance 2