PRACTICE EXAM 150 QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT) /A+ GRADE
filament -CORRECT ANSWER a single strand of a natural or synthetic fiber
natural fibers -CORRECT ANSWER More expensive, require more drying time
Ex: Wool Cotton Silk
Synthetic Fibers -CORRECT ANSWER By-product and man made
Ex:Nylon Polyester Olefin Acrylic
Two types of Natural Fibers -CORRECT ANSWER cellulosic=plant and protein=animals
Wool -CORRECT ANSWER 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 ANSWER Wool, it
hides soil well BUT wool absorbs dye therefore it stains easily
Cellulosic Fiber Facts -CORRECT ANSWER Strong, absorbent, shrinks (often used as
backing of carpet so carpets don't shrink the backing shrinks)
Browning out -CORRECT ANSWER When a cellulosic fiber gets too wet it releases
brown dye and you must use an acid rinse to fix it
Sisal -CORRECT ANSWER Type of cellulosic fiber, color can be removed when cleaned
so best to use dry powder cleaning technique
Dry Powder Cleaning -CORRECT ANSWER Sprinkle a powder use a machine to brush it
in after 20mins soil should be absorbed then vacuum all the powder up
Encapsulation -CORRECT ANSWER Neutral Cleaner... machine like cymax machine to
brush powder in to absorb soil and then vacuum up
, Jute -CORRECT ANSWER Plant fiber so *cellulosic*, susceptible to *mold* damage and
if over wet it will *shrink*
Abrasion -CORRECT ANSWER Scratches on the side of carpet, typical reason why
people replace carpet, happens to planet fiber carpets
5 Gen of Nylon -CORRECT ANSWER 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 ANSWER Formic acid
2 kinds of ions -CORRECT ANSWER cations and anions acid dye resistant carpet is
cationic so must use anionic cleaning products on it
Polyester -CORRECT ANSWER 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 ANSWER Color is added to the polymer solution prior to
extrusion (so it's dyed before becoming a fiber)
Ohliphilic -CORRECT ANSWER Attracts oil (polyester and olefin)
New Polyester is called -CORRECT ANSWER Triexta
Olefin -CORRECT ANSWER Also called polypropylene which is the backing of the
carpet, least absorbent fiber 10% of moisture, hard to stain, attracts oil, always solution
dyed, does not have dye blocker in it so can use cationic cleaners
Loop like carpet -CORRECT ANSWER Berber carpet
What carpet does not have dye blocker in it -CORRECT ANSWER Olefin
What fiber type floats on water -CORRECT ANSWER Olefin
Volatile Solvents -CORRECT ANSWER Evaporates quickly and reacts with chemicals so
doesn't need to be rinsed
What fiber type does not bounce back -CORRECT ANSWER Olefin