exam 133 Correct Solutions.
Mold Remediation Contractor TX State
exam 133 Correct Solutions.
Can mold be found anywhere? - ANSWER yes, they can grow on virtually any organic substance (food)
What is needed for mold to to grow? - ANSWER moisture and oxygen must be present
What is the key to mold control? - ANSWER Moisture control
According to the EPA, what is the ideal RH? - ANSWER 30 - 50% (below 60%)
If water is detected how quickly should it be cleaned and dried to prevent mold growth? - ANSWER
within 48 hours
What are the EPA regulations for mold? - ANSWER There are no EPA regulations for mold
What is PPE? - ANSWER personal protection equipment
What is the minimum PPE recommended? - ANSWER N-95 respirator, gloves and eye protection.
What should a remediation plan include? - ANSWER 1. Steps to fix the water/moisture problem
2. The use of PPE
3. The steps to contain and remove moldy building materials to avoid spreading
What is the remediation manager's highest priority? - ANSWER The protection of the occupants and
remediators health and safety.
,Mold Remediation Contractor TX State
exam 133 Correct Solutions.
Remediation involves what 3 steps according to the EPA book? - ANSWER 1. Fix the water/humidity
problem
2. Continue to communicate with building occupants
3. Completely clean up mold and dry water -damaged areas
What are possible locations for hidden mold according to the EPA book? - ANSWER pipe chases, utility
tunnels, walls behind furniture, condensate drain pans inside air handler, porous thermal/acoustic liners
in duct, roof materials above ceiling tiles
What three water (clean) damaged materials are recommended to discard and replace? - ANSWER 1.
ceiling tiles
2. cellulose insulation
3. fiberglass insulation
What should you do if the building occupants are reporting serious health concerns? - ANSWER Advise
them to consult a health professional
According to the EPA, what are the 4 clean-up methods? - ANSWER 1. Wet Vacuum
2. Damp-wipe
3. HEPA Vacuum
4. Discard
What 2 clean-up methods are the same for concrete or cinder block regardless of the square footage? -
ANSWER 1 and 3 - Wet vac or HEPA vac
Which clean up method can be used on every piece of material or furnishing affected? - ANSWER 3 -
HEPA vacuum
For non-porous, hard surfaces such as plastics and metals, regardless of amount, which cleaning
methods are recommended. - ANSWER 1,2 and 3
, Mold Remediation Contractor TX State
exam 133 Correct Solutions.
Wet vacuum, damp wipe or HEPA vacuum
According to the EPA, why is it recommended to clean up mold? - ANSWER It gradually destroys the
things it grows on.
How should materials that cannot be salvaged be disposed of? - ANSWER Double bagged using 6 mil
poly. Bags must be sealed before disposal to minimize mold dispersion. Large items with heavy mold
should be covered with poly sheeting and sealed with duct tape.
Is there special disposal instructions once bagged? - ANSWER No, mold can be disposed of like regular
garbage.
What size surface area is limited containment? - ANSWER 10 to 100 sq feet
What size surface area is full containment used? - ANSWER More than 100sf
What is a PAPR and when is it recommended? - ANSWER Power air purifying respirator used in full
containment situations. It uses a blower to force air through the HEPA filter that is supplied to a mask
that covers the entire face.
The containment must be maintained by what type of pressure? - ANSWER Negative
Double layers of 6 mil poly should be used in what type of containment? - ANSWER Full - surface area
greater than 100 square feet
What type of containment is recommended in the EPA guidance for 10 to 100sf? - ANSWER Minimum
1. one layer of fire retardant 6mil poly
2. hvac return/supply blocked
3. slit opening and flap on the outside of containment
4. objects being removed must be cleaned/remediated prior to removal