CPR Contents Pack-Out & Restoration 3 — Questions and Answers
Question 1: Ultrasonic cleaning is best suited for which category of contents?
- Large upholstered furniture
- Hard, non-porous items such as ceramics, metals, and plastics (Correct answer)
- Draperies and soft goods
- Paper documents and books
Correct answer: Hard, non-porous items such as ceramics, metals, and plastics
Ultrasonic cleaning uses high-frequency sound waves in a liquid medium and is most effective on hard, non-porous items like ceramics, metals, and plastics.
Question 2: Which cleaning method uses high-pressure hot water to remove soot and smoke residue from non-porous hard surfaces in a controlled environment?
- Dry-ice blasting
- Pressure washing in a contents cleaning facility (Correct answer)
- Dry sponge wiping
- Gamma irradiation
Correct answer: Pressure washing in a contents cleaning facility
Pressure washing with hot water in a controlled facility effectively removes soot and smoke residue from durable non-porous surfaces without risking secondary damage to other items.
Question 3: When cleaning contents affected by a Category 3 (grossly contaminated) water loss, what additional step is required beyond standard cleaning?
- Applying a deodorizer only
- Disinfection or antimicrobial treatment in addition to cleaning (Correct answer)
- Exposing items to UV light for 24 hours
- Re-packaging in original manufacturer boxes
Correct answer: Disinfection or antimicrobial treatment in addition to cleaning
Category 3 water losses involve grossly contaminated water, so contents must be disinfected or treated with antimicrobials after cleaning to eliminate pathogens.
Question 4: What is the correct sequence of steps when using dry sponge wiping to clean soot from a surface?
- Apply chemical, then wipe in circular motions
- Wipe with a dry chemical sponge using straight strokes, replacing or rotating the sponge as it becomes loaded (Correct answer)
- Wet the sponge first, then wipe in any direction
- Apply a light mist of water before using the dry sponge
Correct answer: Wipe with a dry chemical sponge using straight strokes, replacing or rotating the sponge as it becomes loaded
Dry chemical sponges must be used dry with straight strokes to lift and trap soot particles; circular motions or moisture smear the residue further into the surface.
Question 5: Which odor-elimination technique is most appropriate for textiles and soft goods in a closed environment after cleaning?
- Ozone treatment after all biological occupants have vacated the space (Correct answer)
- Applying fragrance sprays to mask odors
- Sealing items in plastic bags indefinitely
- Wiping with bleach solution
Correct answer: Ozone treatment after all biological occupants have vacated the space
Ozone treatment is highly effective for deodorizing textiles and soft goods, but must be performed only after all humans, pets, and plants have vacated the treated space due to ozone's toxicity.
Question 6: When restoring contents with a combination of fire and water damage, what is the recommended order of operations?
- Address water damage first, then smoke and soot (Correct answer)
- Address smoke and soot first, then water damage
- Treat all damage simultaneously using combined products
- Consult only the insurance adjuster before any cleaning
Correct answer: Address water damage first, then smoke and soot
Water damage should be addressed first to prevent further secondary damage like mold, after which smoke and soot can be addressed through appropriate dry and wet cleaning methods.
Question 7: What is the primary risk of using an alkaline cleaning solution on aluminum contents items during smoke restoration?
- It may leave a residue that attracts insects
- It can cause oxidation and permanent pitting or discoloration of the aluminum surface (Correct answer)
- It will void the cleaning contractor's liability coverage
- It creates a fire hazard when combined with soot
Correct answer: It can cause oxidation and permanent pitting or discoloration of the aluminum surface
Strong alkaline cleaners react chemically with aluminum and can cause oxidation, pitting, or permanent discoloration, making pH-appropriate cleaners essential for metal contents.
CPR Contents Pack-Out & Restoration 3
Ultrasonic cleaning is best suited for which category of contents?