IICRC Carpet Cleaning
Technician Exam Series 2025
Questions and Verified
Answers
filament ------------CORRECT ANSWERS--------a single strand of a natural or synthetic fiber
natural fibers ------------CORRECT ANSWERS--------More expensive, require more drying
time
Ex: Wool Cotton Silk
Synthetic Fibers ------------CORRECT ANSWERS--------By-product and man made
Ex:Nylon Polyester Olefin Acrylic
Two types of Natural Fibers ------------CORRECT ANSWERS--------cellulosic=plant and
protein=animals
Wool ------------CORRECT ANSWERS--------Natural crimp so springs back, stains easily, high
alkalinity can damage it, very absorbing, comes from fleece, most common natural fiber
What fiber type is Opaque and what does that mean? ------------CORRECT ANSWERS--------
Wool, it hides soil well BUT wool absorbs dye therefore it stains easily
Cellulosic Fiber Facts ------------CORRECT ANSWERS--------Strong, absorbent, shrinks (often
used as backing of carpet so carpets don't shrink the backing shrinks)
, Browning out ------------CORRECT ANSWERS--------When a cellulosic fiber gets too wet it
releases brown dye and you must use an acid rinse to fix it
Sisal ------------CORRECT ANSWERS--------Type of cellulosic fiber, color can be removed
when cleaned so best to use dry powder cleaning technique
Dry Powder Cleaning ------------CORRECT ANSWERS--------Sprinkle a powder use a machine
to brush it in after 20mins soil should be absorbed then vacuum all the powder up
Encapsulation ------------CORRECT ANSWERS--------Neutral Cleaner... machine like cymax
machine to brush powder in to absorb soil and then vacuum up
Jute ------------CORRECT ANSWERS--------Plant fiber so *cellulosic*, susceptible to *mold*
damage and if over wet it will *shrink*
Abrasion ------------CORRECT ANSWERS--------Scratches on the side of carpet, typical reason
why people replace carpet, happens to planet fiber carpets
5 Gen of Nylon ------------CORRECT ANSWERS--------1. *round* fibers which *magnified*
dirt so 2. The *shape* was *changed* in order to *reduce apparent soiling* 3. Then *carbon core
fiber* was added to reduce static 4. Then *Fluorochemical soil repellent* *ex: Teflon*was added to
reduce soiling 5. Then when things like kool aid was invented, *acid dye resistance* was applied b/c
fluoro is only for soil and didn't repel dyes
Nylon is dissolved by ------------CORRECT ANSWERS--------Formic acid
2 kinds of ions ------------CORRECT ANSWERS--------cations and anions acid dye resistant
carpet is cationic so must use anionic cleaning products on it
Polyester ------------CORRECT ANSWERS--------Synthetic, PET, either disperse dyed or
solution dyed, naturally stain resistant, low absorbable bc moisture goes around the fiber, eco
friendly and cheaper, hard to dye, attracts oil, crimp loss so can matte and appear darker typically
happens in straight lines or sections
Solution dyed ------------CORRECT ANSWERS--------Color is added to the polymer solution
prior to extrusion (so it's dyed before becoming a fiber)
Technician Exam Series 2025
Questions and Verified
Answers
filament ------------CORRECT ANSWERS--------a single strand of a natural or synthetic fiber
natural fibers ------------CORRECT ANSWERS--------More expensive, require more drying
time
Ex: Wool Cotton Silk
Synthetic Fibers ------------CORRECT ANSWERS--------By-product and man made
Ex:Nylon Polyester Olefin Acrylic
Two types of Natural Fibers ------------CORRECT ANSWERS--------cellulosic=plant and
protein=animals
Wool ------------CORRECT ANSWERS--------Natural crimp so springs back, stains easily, high
alkalinity can damage it, very absorbing, comes from fleece, most common natural fiber
What fiber type is Opaque and what does that mean? ------------CORRECT ANSWERS--------
Wool, it hides soil well BUT wool absorbs dye therefore it stains easily
Cellulosic Fiber Facts ------------CORRECT ANSWERS--------Strong, absorbent, shrinks (often
used as backing of carpet so carpets don't shrink the backing shrinks)
, Browning out ------------CORRECT ANSWERS--------When a cellulosic fiber gets too wet it
releases brown dye and you must use an acid rinse to fix it
Sisal ------------CORRECT ANSWERS--------Type of cellulosic fiber, color can be removed
when cleaned so best to use dry powder cleaning technique
Dry Powder Cleaning ------------CORRECT ANSWERS--------Sprinkle a powder use a machine
to brush it in after 20mins soil should be absorbed then vacuum all the powder up
Encapsulation ------------CORRECT ANSWERS--------Neutral Cleaner... machine like cymax
machine to brush powder in to absorb soil and then vacuum up
Jute ------------CORRECT ANSWERS--------Plant fiber so *cellulosic*, susceptible to *mold*
damage and if over wet it will *shrink*
Abrasion ------------CORRECT ANSWERS--------Scratches on the side of carpet, typical reason
why people replace carpet, happens to planet fiber carpets
5 Gen of Nylon ------------CORRECT ANSWERS--------1. *round* fibers which *magnified*
dirt so 2. The *shape* was *changed* in order to *reduce apparent soiling* 3. Then *carbon core
fiber* was added to reduce static 4. Then *Fluorochemical soil repellent* *ex: Teflon*was added to
reduce soiling 5. Then when things like kool aid was invented, *acid dye resistance* was applied b/c
fluoro is only for soil and didn't repel dyes
Nylon is dissolved by ------------CORRECT ANSWERS--------Formic acid
2 kinds of ions ------------CORRECT ANSWERS--------cations and anions acid dye resistant
carpet is cationic so must use anionic cleaning products on it
Polyester ------------CORRECT ANSWERS--------Synthetic, PET, either disperse dyed or
solution dyed, naturally stain resistant, low absorbable bc moisture goes around the fiber, eco
friendly and cheaper, hard to dye, attracts oil, crimp loss so can matte and appear darker typically
happens in straight lines or sections
Solution dyed ------------CORRECT ANSWERS--------Color is added to the polymer solution
prior to extrusion (so it's dyed before becoming a fiber)
