RMS Mitigation System Design & Installation 2

Question 1

When installing a sub-slab depressurization (SSD) system in a house with multiple isolated sub-slab areas, what is the recommended approach?

Accepted Answer

Install separate suction points for each isolated section

Answer

Each isolated sub-slab area requires its own suction point because air cannot flow between disconnected sections.

Question 2

Which pipe diameter is most commonly specified for radon mitigation suction pipes in residential installations?

Accepted Answer

4-inch PVC

Answer

4-inch PVC pipe is the most commonly used diameter for residential radon mitigation suction pipes per EPA guidelines.

Question 3

A diagnostic test shows very high sub-slab air resistance (low communication). Which mitigation technique is MOST appropriate?

Accepted Answer

Multiple suction points or sub-membrane depressurization

Answer

Poor sub-slab communication requires multiple suction points or alternative methods like sub-membrane depressurization to achieve adequate depressurization.

Question 4

What is the purpose of a U-tube manometer installed as part of a radon mitigation system?

Accepted Answer

Indicate whether the fan is creating negative pressure in the suction pipe

Answer

A U-tube manometer (system performance indicator) shows homeowners that the fan is operating and maintaining negative pressure in the pipe.

Question 5

When routing the radon mitigation pipe through conditioned living space, what is required?

Accepted Answer

All pipe joints must be gas-tight and the pipe must be clearly labeled

Answer

Pipes routed through living space must have gas-tight joints and be labeled 'Radon Reduction System' to prevent accidental disconnection.

(RMS) Radon Mitigation Specialist Practice Test

(RMS) Radon Mitigation Specialist Practice Test

RMS Mitigation System Design & Installation 2