Carpet Cleaning Extraction Tools and Techniques Quiz

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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?

A contract between the contractor and the home or business owner or party responsible for payment Signup and view all the answers

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

To give consent for using antimicrobials within a structure Signup and view all the answers

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

All parties involved in the project 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?

More than 40% Signup and view all the answers

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

Class 4 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?

Between 5% and 40% Signup and view all the answers

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

Plaster, wood, concrete Signup and view all the answers

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

Least amount of water absorption and evaporation load 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?

Class 1 Signup and view all the answers

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

Water Claw Signup and view all the answers

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

Refrigerant dehumidifier Signup and view all the answers

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

Calculating cubic feet of water (Length x Width x Depth of water) Signup and view all the answers

Which tool is used for compression during water extraction?

Weighted tool like Drieaz's Rover 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?

Desiccant dehumidifier Signup and view all the answers

What equipment enhances evaporation during the drying process?

Air mover Signup and view all the answers

What is the dry standard based on?

Moisture reading of an unaffected material Signup and view all the answers

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

Moisture sensor Signup and view all the answers

What is the relationship studied in psychrometry?

Airflow, humidity, and temperature Signup and view all the answers

What does GPP stand for in psychrometry?

Grains Per Pound Signup and view all the answers

What does dew point represent?

Temperature at which humidity condenses Signup and view all the answers

How is relative humidity expressed?

As a percentage Signup and view all the answers

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

To dry out structural cavities Signup and view all the answers

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

Total AHAM pints required Signup and view all the answers

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

To express the number of pints of water removed Signup and view all the answers

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

Desiccant- cubic feet × factor = total CFH ÷ 60 = initial CFM Signup and view all the answers

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

To assess if an area is wet, how wet it is, if it is drying, and if it is dry Signup and view all the answers

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

Initial CFM (cubic feet per minute) needed Signup and view all the answers