IICRC Water Restoration Technician Exam
Questions with 100% Verified Answers 2025
A+ Rated
Vapor pressure
The pressure exerted by the water (vapor) molecules in the air on
surrounding surfaces is called
Saturation point
When the air is at 100% Rh, it is also at its
Permeance
When vapor passes through solid material this is the materials...
Areas of high vapor pressure seeks areas of low vapor
pressure
What does it mean when we say, "nature always seeks an
equilibrium?"
70 F/70%
Considering the following measurements, which is the highest
humidity ratio (or dewpoint temperature or vapor pressure)
90F/30% OR 40F/40% OR 50 F/80% OR 70 F/70%
40 F/40%
Considering the following measurements, which is the lowest
humidity ratio (or dewpoint temperature or vapor pressure)
90F/30% OR 40F/40% OR 50 F/80% OR 70 F/70%
Warmer and dryer
If the inside is "warm and wet" then what conditions would be
necessary outside if we were to use the outdoor air to dry the
structure?
Warm the structure up
, Category one water; 45°F in the house. How would you address
the drain?
Cooler because the molecules absorb energy
When water evaporates, does the surface become cooler or
hotter? Why?
70%
What relative humidity (and above) can support microbial growth?
terms of payment
What should be indicated on that contract?
GPP humidity ratio/dewpoint/vapor pressure. They are
related to each other only in the way they move
What three pieces of information on the right hand side of the
psychometric chart? Are they related to each other?
60
Inside of the house is 75°F and 60% relative humidity. How cold is
the windows have to be in order to collect condensation?
29%
If the humidity ratio is 45GPP at 80°F... What is the relative
humidity?
92
At 70°F and 60% relative humidity... What temperature is required
to bring relative humidity to 30%?
Length by width by height
How do you determine cubic feet in a room?
7.48
How many gallons are in a cubic foot of water?
38,148
How many gallons are in a basement that is 40' x 30' with a 4'3"
water depth?
1
How many air movers are installed in each affected room to start?
50 to 70
Questions with 100% Verified Answers 2025
A+ Rated
Vapor pressure
The pressure exerted by the water (vapor) molecules in the air on
surrounding surfaces is called
Saturation point
When the air is at 100% Rh, it is also at its
Permeance
When vapor passes through solid material this is the materials...
Areas of high vapor pressure seeks areas of low vapor
pressure
What does it mean when we say, "nature always seeks an
equilibrium?"
70 F/70%
Considering the following measurements, which is the highest
humidity ratio (or dewpoint temperature or vapor pressure)
90F/30% OR 40F/40% OR 50 F/80% OR 70 F/70%
40 F/40%
Considering the following measurements, which is the lowest
humidity ratio (or dewpoint temperature or vapor pressure)
90F/30% OR 40F/40% OR 50 F/80% OR 70 F/70%
Warmer and dryer
If the inside is "warm and wet" then what conditions would be
necessary outside if we were to use the outdoor air to dry the
structure?
Warm the structure up
, Category one water; 45°F in the house. How would you address
the drain?
Cooler because the molecules absorb energy
When water evaporates, does the surface become cooler or
hotter? Why?
70%
What relative humidity (and above) can support microbial growth?
terms of payment
What should be indicated on that contract?
GPP humidity ratio/dewpoint/vapor pressure. They are
related to each other only in the way they move
What three pieces of information on the right hand side of the
psychometric chart? Are they related to each other?
60
Inside of the house is 75°F and 60% relative humidity. How cold is
the windows have to be in order to collect condensation?
29%
If the humidity ratio is 45GPP at 80°F... What is the relative
humidity?
92
At 70°F and 60% relative humidity... What temperature is required
to bring relative humidity to 30%?
Length by width by height
How do you determine cubic feet in a room?
7.48
How many gallons are in a cubic foot of water?
38,148
How many gallons are in a basement that is 40' x 30' with a 4'3"
water depth?
1
How many air movers are installed in each affected room to start?
50 to 70
