Practice ASCS Exam Online

Question 1

A client is noticing black particulate coming out of the diffusers and ending up on desks. During the initial inspection, the ASCS should pay close attention to the:

A : condition of the ceiling tiles.

B : condition of the internal duct insulation.

C : condition of the external insulation on the return.

D : closed cell foam insulation covering the AC line set.

Answer: B

Question 2

According to ACR, The NADCA Standard, if the preliminary determination indicates that extensive mold growth is visible,

A : the ASCS should recommend a building-wide evacuation.

B : it is recommended that the cause and extent of microbial growth be determined.

C : an air balance professional is required to diagnose the problem.

D : an Indoor Environmental Professional (IEP) should recommend a building-wide evacuation.

Answer: B

Question 3

Which of the following represents the static pressure, for each area listed, that is MOST likely to be found in a

typical HVAC system?

Supply Return Outside Air

Ductwork Ductwork Intake

A : Negative Positive Negative

B :

Positive Positive Negative

C : Positive Negative Positive

D : Positive Negative Negative

Answer: C

Question 4

Turning vanes are PRIMARILY designed to:

A : direct airflow

B : reduce pressure.

C : control temperature.

D : reduce sound.

Answer: A

Question 5

Significant contaminant build-up in ductwork is MOST likely found in areas affected by:

A : heat loss.

B : pressure drops.

C : temperature differences.

D : pressure increases.

Answer: B

Name:	Air Systems Cleaning Specialist
Exam Code:	ASCS
Certification:	NADCA Certifications
Vendor:	NADCA
Total Questions:	150
Last Updated:	Apr 23, 2024

NADCA ASCS