IICRC WRT FINAL TEST 2025 QUESTIONS AND
ANSWERS GUARANTEED TO PASS
◉ true or false .. when making a decision on removing materials, we
should cut out most materials if practical Answer: False
◉ drywall is ideally cut straight at what heights ? Answer: Below
top of the base 1:2:4 or higher if affected area requires
◉ true or false ... Hepa vacuums are a good tool for cleaning up dust
after material removal Answer: true
◉ true or false .... when making a decisiion on removing material we
should cut out most materials if practical Answer: False
◉ Name 2 steps in minimizing particulate aerosolization Answer:
Filtering the air , Pre cleaning
◉ How might you determine if air filtration is needed on a Category
1 water project ? Answer: Ask the customer for their preference
,◉ What meter measures the number of particles in the air ?
Answer: Particle counter
◉ What piece of equipment specifically filters the air ? Answer: air
filtration device
◉ For an area that is 25x25x10 you need 6 ACH. How many 500 CFM
air filtration devices are needed ? Answer: 2
◉ Name 2 steps in minimizing particulate aerosolization. Answer:
Filtering the air , pre cleaning
◉ When should a restorer consider bringing in an IEP on a CAT 2 or
CAT 3 water intrusion ? Answer: Where there are high risk
individuals or situations or situations
◉ significant amount of water absorption into low evaporation
materials or assemblies . Answer: Class 4
◉ uses pins for finding the perimeter of water under carpet and
padding Answer: Moisture sensor
, ◉ What catergory of water contains significant contamination and
can make you sick Answer: Cat 2
◉ IR cameras help find water that is evaporating because the surface
is Answer: cooler
◉ when water is evaporating from a surface, the surface gets
Answer: cooler
◉ If dew point temperature changes what 2 other humidity
measurements changes with it ? Answer: Vapor pressure . humidity
Ratio
◉ What is measurable force that vapor creates on the things around
it ? Answer: Vapor Pressure
◉ What is the term used when air reaches 100% relative humidity
also known as saturation Answer: Dew point
◉ The Ratio of the mass of the mass of vapor to the mass of dry air is
called Answer: Humidity ratio
◉ reducing the amount of water vapor in the air is called Answer:
dehumidification
ANSWERS GUARANTEED TO PASS
◉ true or false .. when making a decision on removing materials, we
should cut out most materials if practical Answer: False
◉ drywall is ideally cut straight at what heights ? Answer: Below
top of the base 1:2:4 or higher if affected area requires
◉ true or false ... Hepa vacuums are a good tool for cleaning up dust
after material removal Answer: true
◉ true or false .... when making a decisiion on removing material we
should cut out most materials if practical Answer: False
◉ Name 2 steps in minimizing particulate aerosolization Answer:
Filtering the air , Pre cleaning
◉ How might you determine if air filtration is needed on a Category
1 water project ? Answer: Ask the customer for their preference
,◉ What meter measures the number of particles in the air ?
Answer: Particle counter
◉ What piece of equipment specifically filters the air ? Answer: air
filtration device
◉ For an area that is 25x25x10 you need 6 ACH. How many 500 CFM
air filtration devices are needed ? Answer: 2
◉ Name 2 steps in minimizing particulate aerosolization. Answer:
Filtering the air , pre cleaning
◉ When should a restorer consider bringing in an IEP on a CAT 2 or
CAT 3 water intrusion ? Answer: Where there are high risk
individuals or situations or situations
◉ significant amount of water absorption into low evaporation
materials or assemblies . Answer: Class 4
◉ uses pins for finding the perimeter of water under carpet and
padding Answer: Moisture sensor
, ◉ What catergory of water contains significant contamination and
can make you sick Answer: Cat 2
◉ IR cameras help find water that is evaporating because the surface
is Answer: cooler
◉ when water is evaporating from a surface, the surface gets
Answer: cooler
◉ If dew point temperature changes what 2 other humidity
measurements changes with it ? Answer: Vapor pressure . humidity
Ratio
◉ What is measurable force that vapor creates on the things around
it ? Answer: Vapor Pressure
◉ What is the term used when air reaches 100% relative humidity
also known as saturation Answer: Dew point
◉ The Ratio of the mass of the mass of vapor to the mass of dry air is
called Answer: Humidity ratio
◉ reducing the amount of water vapor in the air is called Answer:
dehumidification
