IICRC WRT Questions V2
1. The amount of moisture in the air as compared to how much can be put into the air at that
temperature is called .:
RelativeHumidity
2. Evaporation can occur at a greater rate when the materials surface temper- ature is above the
point .: Dew Point Temperature
3. What two readings do we need from a thermo-hygrometer in order to work the
psychrometric chart?: Relative Humidity and Dry Bulb Temperature
4. Surfaces that are absorb moisture until they reach equi-
librium and are sometimes permanently damaged.: Hygroscopic
5. At what point does condensation occur at a condition of 750F (240C) at60% RH? : 60
degrees faranhieght
6. What does PPE stand for?
: Personal Protective Equipment
7. Check how far moisture has spread in carpet with pad: M S : Moisture sensor
8. Can the tool in #2 tell us which layer is wet? Yes or No: No
9. To check the temperature and RH: - .:
Thermo-Hy-grometer
10. All individuals who will be wearing respirators must be medically cleared,
tested, and trained to don/ the respirator and safety equipment.:
Fit tested and don/doff
11. Check behind a ceramic tiled wall or wood below a linoleum floor:
: Non penetrating moisture meter
12. To check subfloor below strip hardwood flooring: H P
.: Hammer probe
13. What is the best extraction tool for hard surfaces?
: Vacuum squeegee wand
14. Equipment with frayed cords should be tagged, removed from service and
.: Repaired
15. The airmover is an important piece of equipment used to create
.: Evaporation
16. To check a vinyl wallpapered wall: N P .:
, Non pen-etrating moisture meter
17. Never allow intakes of airmovers to become blocked or restricted due themotor possibly
.: Overheating
18. What does HEPA stand for?: high-efficiency particulate air
19. Dehumidifiers are generally classified as either a
or
.: Refrigerant or desiccant
20. The AHAM test condition is 0F % RH
hours: 80°F
, 60%, 24 hours
21. Dehumidifiers should be considered when the indoor humidity is above
% RH.: 40%RH
22. Which type refrigerant dehumidifier works down to 330F (10C) and a gppof 34 grains?:
Low grain refrigerant
23. A standard refrigerant dehumidifier requires a minimum temperature of
.: 68°F
24. Commercial and LGR dehumidifiers offer a bypass
systemallowing the dehumidifiers to operate down to 330F (10C).: Hot Gas Bypass
25. The dehumidifier that delivers air at or below 10% RH is:
: Desiccant
26. Desiccants utilize or as a method of dehumidifi-
cation.: Absorbent or adsorbent
27. dehumidifiers are the most common utilized in restora-tion.:
Refrigerant
28. Which dehumidifier creates the lowest vapor pressure?
: Desiccant
29. How do dehumidifiers work scientifically?: They create a forceful magneticcenter of low
vapor pressure
30. When entering a structure with severe mold buildup, you should wear
.: PPE
31. Blowing air directly on visible mold will :-
Aerosolize/ contaminate the area
1. The amount of moisture in the air as compared to how much can be put into the air at that
temperature is called .:
RelativeHumidity
2. Evaporation can occur at a greater rate when the materials surface temper- ature is above the
point .: Dew Point Temperature
3. What two readings do we need from a thermo-hygrometer in order to work the
psychrometric chart?: Relative Humidity and Dry Bulb Temperature
4. Surfaces that are absorb moisture until they reach equi-
librium and are sometimes permanently damaged.: Hygroscopic
5. At what point does condensation occur at a condition of 750F (240C) at60% RH? : 60
degrees faranhieght
6. What does PPE stand for?
: Personal Protective Equipment
7. Check how far moisture has spread in carpet with pad: M S : Moisture sensor
8. Can the tool in #2 tell us which layer is wet? Yes or No: No
9. To check the temperature and RH: - .:
Thermo-Hy-grometer
10. All individuals who will be wearing respirators must be medically cleared,
tested, and trained to don/ the respirator and safety equipment.:
Fit tested and don/doff
11. Check behind a ceramic tiled wall or wood below a linoleum floor:
: Non penetrating moisture meter
12. To check subfloor below strip hardwood flooring: H P
.: Hammer probe
13. What is the best extraction tool for hard surfaces?
: Vacuum squeegee wand
14. Equipment with frayed cords should be tagged, removed from service and
.: Repaired
15. The airmover is an important piece of equipment used to create
.: Evaporation
16. To check a vinyl wallpapered wall: N P .:
, Non pen-etrating moisture meter
17. Never allow intakes of airmovers to become blocked or restricted due themotor possibly
.: Overheating
18. What does HEPA stand for?: high-efficiency particulate air
19. Dehumidifiers are generally classified as either a
or
.: Refrigerant or desiccant
20. The AHAM test condition is 0F % RH
hours: 80°F
, 60%, 24 hours
21. Dehumidifiers should be considered when the indoor humidity is above
% RH.: 40%RH
22. Which type refrigerant dehumidifier works down to 330F (10C) and a gppof 34 grains?:
Low grain refrigerant
23. A standard refrigerant dehumidifier requires a minimum temperature of
.: 68°F
24. Commercial and LGR dehumidifiers offer a bypass
systemallowing the dehumidifiers to operate down to 330F (10C).: Hot Gas Bypass
25. The dehumidifier that delivers air at or below 10% RH is:
: Desiccant
26. Desiccants utilize or as a method of dehumidifi-
cation.: Absorbent or adsorbent
27. dehumidifiers are the most common utilized in restora-tion.:
Refrigerant
28. Which dehumidifier creates the lowest vapor pressure?
: Desiccant
29. How do dehumidifiers work scientifically?: They create a forceful magneticcenter of low
vapor pressure
30. When entering a structure with severe mold buildup, you should wear
.: PPE
31. Blowing air directly on visible mold will :-
Aerosolize/ contaminate the area
