Carpet Cleaning Extraction Tools and Techniques Quiz

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Questions and Answers

What is the purpose of the WRT Study Guide?

  • To focus solely on Safety Data Sheets (SDS)
  • To provide a detailed microbiology course
  • To enhance the learning experience in the water restoration field (correct)
  • To replace the need for attending the WRT class

What does the SDS (Safety Data Sheet) identify?

  • Where to purchase chemicals
  • Characteristics of chemicals and what to do if ingested or in contact with eyes, skin, etc. (correct)
  • Characteristics of chemicals and their taste
  • What to do if chemicals are ingested, but not in contact with eyes or skin

Where should the SDS be kept according to the text?

  • In a separate building from where the work is being done
  • Under the driver's seat of the vehicle
  • In the glove compartment of the vehicle
  • Within reaching distance of the vehicle's driver while wearing a seatbelt (correct)

What is a Work Authorization in the context of water restoration?

<p>A contract between the contractor and the home or business owner or party responsible for payment (B)</p> Signup and view all the answers

What is the purpose of an Antimicrobial (Biocide) Authorization?

<p>To give consent for using antimicrobials within a structure (D)</p> Signup and view all the answers

Who should sign the Antimicrobial (Biocide) Authorization according to the text?

<p>All parties involved in the project (C)</p> Signup and view all the answers

In Class 3 water damage, what percentage of the combined floor, wall, and ceiling surface area in the space is represented by wet, porous materials?

<p>More than 40% (C)</p> Signup and view all the answers

Which class of water damage involves deeply held or bound water?

<p>Class 4 (A)</p> Signup and view all the answers

For Class 2 water damage, what percentage of the combined floor, wall, and ceiling surface area in the space is represented by wet, porous materials?

<p>Between 5% and 40% (A)</p> Signup and view all the answers

Which materials are described as low evaporation materials in the context of water damage classification?

<p>Plaster, wood, concrete (A)</p> Signup and view all the answers

What defines Class 1 water damage in terms of the amount of water absorption and evaporation load?

<p>Least amount of water absorption and evaporation load (B)</p> Signup and view all the answers

Which class of water damage includes scenarios where wet, porous materials represent less than ~5% of the combined floor, wall, and ceiling surface area in the space?

<p>Class 1 (B)</p> Signup and view all the answers

What is a tool used for sub-surface 'sealed' extraction?

<p>Water Claw (A)</p> Signup and view all the answers

Which type of dehumidifier works through condensation and is most efficient in 70Ëš-90ËšF temperatures?

<p>Refrigerant dehumidifier (A)</p> Signup and view all the answers

How can you determine the amount of standing water in a crawl space or basement?

<p>Calculating cubic feet of water (Length x Width x Depth of water) (C)</p> Signup and view all the answers

Which tool is used for compression during water extraction?

<p>Weighted tool like Drieaz's Rover (D)</p> Signup and view all the answers

What type of dehumidifier is useful in colder conditions and produces low vapor pressure ideal for drying class 4 water losses?

<p>Desiccant dehumidifier (A)</p> Signup and view all the answers

What equipment enhances evaporation during the drying process?

<p>Air mover (D)</p> Signup and view all the answers

What is the dry standard based on?

<p>Moisture reading of an unaffected material (A)</p> Signup and view all the answers

Which tool is used to determine the edge of water migration in carpet and pad?

<p>Moisture sensor (A)</p> Signup and view all the answers

What is the relationship studied in psychrometry?

<p>Airflow, humidity, and temperature (C)</p> Signup and view all the answers

What does GPP stand for in psychrometry?

<p>Grains Per Pound (C)</p> Signup and view all the answers

What does dew point represent?

<p>Temperature at which humidity condenses (D)</p> Signup and view all the answers

How is relative humidity expressed?

<p>As a percentage (C)</p> Signup and view all the answers

What is the purpose of an AFD (Air Filtration Device) in the context mentioned?

<p>To dry out structural cavities (D)</p> Signup and view all the answers

What does the formula Refrigerant-cubic feet (LxWxH of area) ÷ factor = initial pints needed minimum represent?

<p>Total AHAM pints required (A)</p> Signup and view all the answers

What is the purpose of the AHAM rating for dehumidifiers mentioned in the text?

<p>To express the number of pints of water removed (C)</p> Signup and view all the answers

Which formula is used to calculate the minimum CFM (cubic feet per minute) required for dehumidifiers?

<p>Desiccant- cubic feet × factor = total CFH ÷ 60 = initial CFM (A)</p> Signup and view all the answers

What is the role of the 'four knows' of drying mentioned in the text?

<p>To assess if an area is wet, how wet it is, if it is drying, and if it is dry (D)</p> Signup and view all the answers

What does the Desiccant formula (cubic feet × factor = total CFH ÷ 60) calculate?

<p>Initial CFM (cubic feet per minute) needed (A)</p> Signup and view all the answers

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