TT 105 FINAL

Question 1

Towels and bed-linens are examples of fabricated textile products in the ….

Answer 1

Household and
Institutional Textiles

Question 2

are Paper and leather products textiles?

Answer 2

No

Question 3

Textile fibers have a length of …

Answer 3

100 times its diameter

Question 4

Interstices

Answer 4

are holes or void space within a textile fabric which contain air

Question 5

Supply chain management implies a sequence of events getting desired products to
customers.

Answer 5

true

Question 6

Supply chain management involves

Answer 6

forecasting, purchasing, scheduling, financing,
distribution and service.

Question 7

Fibers can be classified as

Answer 7

natural vs. manufactured fibers

Question 8

Natural fibers can be

Answer 8

cellulosic (cotton), protein (wool) or mineral (asbestos)

Question 9

Manufactured fibers can be called what if produced from synthetic polymers

Answer 9

synthetic

Question 10

Rayon and acetate are..

Answer 10

cellulosic fibers

Question 11

nylon, aramid (Kevlar®), polypropylene and
polyester are

Answer 11

synthetic fibers

Question 12

Cashmere, mohair, qiviut, angora and tussah silk are examples of what

Answer 12

natural protein fibers
harvested from animals.

Question 13

Flax, industrial hemp, jute and ramie are all examples of

Answer 13

natural cellulosic fibers harvested
from plants

Question 14

Fiber properties often depend upon their

Answer 14

structure (morphology), temperature, humidity and
light exposure

Question 15

Mechanical properties depend on

Answer 15

polymer type, morphology of fiber (shape, length), etc.

Question 16

Applying force (i.e., tension or stress) to a yarn causes it to ____ in length

Answer 16

increase

Question 17

Elongation to break measures

Answer 17

how much a material stretches before it breaks.

Question 18

Hydrophobic fibers absorb

Answer 18

little moisture

Question 19

hydrophilic fibers absorb

Answer 19

moisture readily

Question 20

Small slope in the stress-strain curve means easy to stretch

Answer 20

true

Question 21

Swimsuit or hosiery should use a fiber with

Answer 21

high elongation

Question 22

Yield point is where stress-strain curve begins to

Answer 22

flatten

Question 23

. Tenacity refers to

Answer 23

stress at which fiber breaks

Question 24

Natural fibers can readily be identified using

Answer 24

microscopy

Question 25

Wool has how much moisture regain

Answer 25

13-18%

Question 26

materials get stronger when wet

Answer 26

cotton

Question 27

materials get weaker when wet

Answer 27

silk

Question 28

Fibers can have many different cross-sectional shapes

Answer 28

true

Question 29

Polymer properties depend on

Answer 29

chemical composition, degree of polymerization, intermolecular forces, copolymer, and morphology of polymer

Question 30

Biocomponent

Answer 30

Two polymers through different parts of the same spinneret hole to form one fiber

Question 31

Bicomponent filaments can have variable properties depending upon the properties of each polymer component.

Answer 31

true

Question 32

Crystal is a solid that has

Answer 32

regularly repeating internal arrangement of its atoms

Question 33

High crystallinity implies that it is

Answer 33

stiffer, stronger, and harder to dye

Question 34

Dependent upon arrangement, copolymer can be

Answer 34

random, alternating and block formats

Question 35

Yarn is an intermediate product for manufacturing fabric; Thread is a product for joining parts and components

Answer 35

true

Question 36

Filament yarn characteristics can be affected by

Answer 36

filament count, cross-section, etc.

Question 37

Filament yarn size is measured by the

Answer 37

linear density

Question 38

Denier shows several parameters

Answer 38

number of piles, denier per ply, and number of filaments

Question 39

. Increase in yarn stretch can lead to a

Answer 39

greater elongation and recovery

Question 40

Thermoplastic polymers can be melt spun into

Answer 40

continuous filaments.