Question 1

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

Options :

A : heat loss.

B : pressure drops.

C : temperature differences.

D : pressure increases.

Answer: B

Question 2

Having a regular HVAC filter replacement plan can help:

Options :

A : protect the system components.

B : double the system’ airflow.

C : humidify the airflow.

D : sanitize the system components.

Answer: A

Question 3

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

Options :

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 4

Transite (asbestos) pipe is often found in which type of HVAC systems?

Options :

A : Dual duct system

B : Sub-slab system

C : Constant volume system

D : Variable air system

Answer: C

Question 5

During an HVAC system cleaning project, an ASCS encounters vents that have been painted over. What is the usual course of action?

Options :

A : Inform the over that the ductwork cannot be cleaned because removing the vent may damage the paint.

B : Proceed with the use of agitation tools without removing the vent.

C : Continue with the cleaning process, avoiding the use of agitation tools where vents have been painted over.

D : Inform the owner that a razor knife will be used to cut the paint before continuing with cleaning.

Answer: D

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