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TAM Final Exam Prep 2024 Dec with complete solution; University of Illinois, Urbana Champaign
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TAM Final Exam Prep 2024 Dec with complete solution; University of Illinois, Urbana Champaign
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TAM Final Exam Prep 2024 Dec with complete solution;University of Illinois, Urbana Champaign
The first stage in textile product is _
_________? - ANSWERfiber
Assemblage of fiber that is twisted together to form a continuous strand - ANSWERyarn
______________ describes how well a product meets consumers' needs and
expectations - ANSWERserviceability
What does the diameter of a fiber affect? - ANSWERfabric hand
The burn test can distinguish between__________ - ANSWERlinen and wool
Modification of the cross-sectional shape of a fiber can impact what? -
ANSWERaesthetic properties of the fiber
The ability of a fiber to stretch - ANSWERElongation
Is Cotton a hydrophobic fiber? - ANSWERno
Common properties of cellulosic fibers - ANSWERgood absorbency
good heat resistance
low resilience
What is not a common property of cellulosic fibers? - ANSWERstrong resistance to
sunlight
Natural cellulosic fibers are generally _______ wet than dry. - ANSWERstronger
prevents the wool fiber from returning to its original position - ANSWERfelting
are protein fibers flame retardant? - ANSWERno
Is rayon a regenerated fiber? - ANSWERyes
does polyester have great resiliency? - ANSWERyes
What happens to synthetic fibers when exposed to heat? - ANSWERget soft and melt
What is the fundamental difference between regenerated fibers and synthetic fibers? -
ANSWERthe source of polymer
,Does nylon have good absorbency? - ANSWERno
When polyester is used in blended fabrics, it looks like ___________ fibers -
ANSWERnatural
This fiber is seldom used alone in fabrics because it is not comfortable against the skin -
ANSWERspandex
Steps to produce a spun yarn - ANSWERopening
carding
drawing
combing
roving
What determines the number of filaments in a yarn? - ANSWERnumber of holes in a
spinneret
What are yarns that are made by a third twisting operation called? - ANSWERPlies
The finer the yarn, the _______ the number - ANSWERhigher
the ratio of warp yarns to filling yarns in a fabric - ANSWERbalance
___________ refers to any substance or hair-like components that can be processed
into many different textile products. - ANSWERfiber
Greige goods are___________ - ANSWERany fabric that has not been finished
a characteristic of textile quality that ensures identical textile products are the same -
ANSWERconsistency
when molecular chains are randomly organized within the fiber, they are? -
ANSWERAmorphous
Is it true that natural fibers have less of an enviromental impact than manufactured or
synthetic fibers? - ANSWERno
increases absorbency and skin-contact comfort, but reduces luster - ANSWERfiber
crimp
filaments that are crimped and then cut into shorter lengths are called_______ -
ANSWERfilament tow
a low level of thermal retention is favored in warm weather and a high level in ____
weather - ANSWERcold
, Cotton's high absorbency contributes to its.... - ANSWERgood comfort characteristic
good dyeability
increases risk of mildew damage
do the twists in a cotton fiber help add cohesiveness to the fiber? - ANSWERyes
Examples of what a natural cellulosic fiber is - ANSWERseed fiber
leaf fiber
bast fiber
The process of separating cotton fibers from seeds is called__________ -
ANSWERginning
Which natural fiber is a major component of blended fabrics? - ANSWERcotton
cotton is _________ and polyester is ___________ - ANSWERhydrophilic, hydrophobic
Name an example of a bast fiber - ANSWERRamie
What is the basic monomer of cellulose? - ANSWERglucose
what is wool very sensitive to? - ANSWERalkalis
who are the two largest wool producers in the world? - ANSWERAustralia and New
Zealand
what is the cross sectional shape of silk? - ANSWERtriangular
__________ has good resiliency due to natural cross-links and crimps - ANSWERwool
when silk is stretched even a tiny amount, does it return to its original shape? -
ANSWERno
what is the trade name for manufactured fiber? - ANSWERdacron polyester
a controlled stretching of fibers immediately after extrusion produces high______ fibers
- ANSWERtenacity
a _________ fiber is a fiber that consists of two polymers that are chemically different,
physically different or both - ANSWERbicomponent
what was originally developed as an alternative to silk? - ANSWERrayon
rayon has a series of ___________, lengthwise lines in the fiber - ANSWERstriations
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