MRS Mold Remediation Techniques and Procedures 2

Question 1

When remediating a large mold-contaminated area (>100 sq ft), what type of containment is typically required?

Accepted Answer

Full containment with negative air pressure and airlock entry

Answer

Large mold remediation projects require full containment with negative air pressure and an airlock entry to prevent cross-contamination to unaffected areas.

Question 2

Which HEPA vacuum filter efficiency is required for mold remediation work?

Accepted Answer

99.97% efficiency at 0.3 microns

Answer

HEPA filters used in mold remediation must capture 99.97% of particles at 0.3 microns to effectively capture mold spores.

Question 3

After physically removing mold-contaminated materials, what is the next critical step before applying antimicrobial treatments?

Accepted Answer

Damp wipe and HEPA vacuum all affected surfaces

Answer

Damp wiping and HEPA vacuuming removes residual mold spores and debris from surfaces before any antimicrobial treatment is applied.

Question 4

What does a negative air machine do during mold remediation containment?

Accepted Answer

Creates negative pressure to pull air through HEPA filters before exhausting

Answer

A negative air machine creates negative pressure inside the containment zone, drawing air through HEPA filters before exhausting it outside, preventing spore migration.

Question 5

When demolishing mold-contaminated drywall, workers should use which cutting technique to minimize spore dispersal?

Accepted Answer

Scoring and snapping after misting with water

Answer

Scoring and snapping drywall after misting with water minimizes dust and aerosolized spore dispersal compared to power cutting.

(MRS) Mold Remediation Specialist Practice Test

(MRS) Mold Remediation Specialist Practice Test

MRS Mold Remediation Techniques and Procedures 2