WRT Certification Questions and Answers
What is the most important aspect to the beginning of a job?
Risk/Hazard assessment for the safety of all individuals involved
Employers must provide training, a fit test, and a medical evaluation for employees who will be utilizing what equipment?
...
what is the most important aspect to the beginning
employers must provide training a fit test and a
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WRT Certification Questions and
Answers
What is the most important aspect to the beginning of a job? - answer Risk/Hazard
assessment for the safety of all individuals involved
Employers must provide training, a fit test, and a medical evaluation for employees who
will be utilizing what equipment? - answer Respirator and cartridges
What should be completed before starting emergency mitigation services? - answer
A work authorization (contract) has been signed.
Often found in older structures, lead and asbestos are hazardous materials regulated by
the federal government. - answer True
Water that has a significant degree of contamination and could cause illness is which of
these? - answer Category 2
Water that is grossly contaminated - answer Category 3
If stopped from removing highly porous materials (carpet) on a Category 3 job, what
should the restorer do? - answer Stop work to prevent liability
Secondary damage is more likely to occur when relative humidity levels are - answer
65%
When a water loss occurs, the most important factor in reducing damage is - answer
Rapid response to start mitigation procedures
What steps should be taken when working in an area with potential contamination? -
answer Wear proper PPE, contain the area
Which of the following would be considered category 1 water?
- is grossly contaminated
- from a sanitary source
- has significant contamination
- contains regulated materials - answer From a sanitary source
Performing a thorough extraction or repeated extractions accomplishes what? - answer
reduces drying times
Water extracted from a jobsite should be - answer disposed of according to local
laws
, In a crawlspaces that measures 37' x 42' and has water standing at a depth of 1' 9",
how many total gallons are there? - answer 20,341 gallons
A moisture reading obtained from an unaffected material that allows the restorer to set
drying goals for the affected structure - answer Dry standard
When is a drying job done? - answer a moisture meter indicates we have met our dry
goal
The moisture sensor can be used to verify our drying goal has been met - answer
false
Moisture sensors and IR camera are effective tools for - answer quickly locating
moisture in carpet
What does a thermo-hygrometer measure? - answer Temperature and relative
humidity
Why do IR infarred cameras indicate possible moisture in materials? - answer
Materials surface temperature cools as water evaporates
Once an area is identified with an infared camera as a suspect of being wet, that area
must be verified with - answer A thermal hygrometer???
Psychometric conditions have a direct effect on the rate at which moisture moves within
materials, as well as from wet materials - answer True
The amount of moisture in the air, as a percentage of the maximum amount the air
could hold at a given temperature is known as which of these - answer Relative
humidity
What is the ratio of the weight of water vapor mixed with one pound of dry air called -
answer Humidity ratio
To promote effective drying, restorers need to control - answer Surface temperature
of the wet materials, air temperature of the drying chamber, vapor pressure of the drying
chamber
A surface with a temperature at or below dew point results in what? - answer
Condensation
If you increase the temperature in a drying chamber, what change will occur in the
relative humidity? - answer Decrease
Evaporation will increase when - answer wet materials are made warmer
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