RMS System Design & Installation 3

Question 1

According to EPA guidelines, radon vent pipe discharge must terminate at least how far from any window or opening into the conditioned space?

Accepted Answer

10 feet horizontally or 2 feet above

Answer

EPA requires discharge points to be at least 10 feet from any opening, or 2 feet above openings within 10 feet, to prevent re-entry of radon.

Question 2

What is the primary reason a radon fan should NOT be installed in a conditioned living space?

Accepted Answer

Motor failure could release radon into the home

Answer

If the fan fails or pipe connections loosen while the fan is in conditioned space, radon can be drawn into living areas, creating a serious health hazard.

Question 3

What is the standard pipe size for most residential sub-slab depressurization systems?

Accepted Answer

3-inch PVC

Answer

3-inch PVC Schedule 40 is the standard pipe size for most residential SSD systems, providing adequate airflow with minimal resistance.

Question 4

A system performance indicator (SPI) or warning device should be installed in which location?

Accepted Answer

In a visible location in the living area

Answer

EPA and AARST standards require the SPI to be installed in a visible location within the living area so occupants can easily monitor system operation.

Question 5

When is block wall depressurization (BWD) an appropriate radon mitigation technique?

Accepted Answer

In homes with hollow masonry block foundation walls where radon enters through the block

Answer

BWD is specifically used when radon migrates through the hollow cores of concrete masonry unit (CMU) block foundation walls, creating suction inside the block cavities.

(RMS) Radon Mitigation Specialist Practice Test

(RMS) Radon Mitigation Specialist Practice Test

RMS System Design & Installation 3