Polyisoprene
Nylon-66
Polystyrene
Bakelite
✅ The correct answer is option A.
Polymer Technology MCQs
Mastication of rubber means
its softening.
a treatment to retard its deterioration due to oxidation.
improving its curing rate.
depression of its freezing point.
✅ The correct answer is option A.
Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten
teflon
bakelite
SBR
PVC
✅ The correct answer is option D.
Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser ?
Ethylene glycol
Stearic acid estors
Tricresyl phosphate
Esters of phthalic acid
✅ The correct answer is option A.
Contact lenses for eyes are made of perspex, which is nothing but
polymethylmethacrylate
polystyrene
unsaturated polyester
polypropylene
✅ The correct answer is option A.
Automobile steering wheels are normally made of
cellulose acetate
cellulose nitrate
PVC
high density polythene
✅ The correct answer is option A.
Which of the following is not present in bagasse fibre ?
Cellulose
Lignin
Pentogens
None of these
✅ The correct answer is option D.
Cross linked polymers are
thermoplastic
thermosetting
either (a) or (b)
fibres only
✅ The correct answer is option B.
In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the __________ fibres.
viscose rayon
acrylic
polyvinyl acetate
saturated polyester
✅ The correct answer is option D.
Cross linked polymers formed from bi-and trifuctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties.
thermoplastic
thermosetting
elastometric
brittleness
✅ The correct answer is option C.