Teflon
Perspex
Silicones
Bakelite
✅ The correct answer is option C.
Polymer Technology MCQs
92. __________ is an addition polymer
Nylon
Bakelite
Polythene
none of these
✅ The correct answer is option C.
93. Polymethyl methacrylate (PMMA) is known as
bakelite
teflon
perspex
nylon-6
✅ The correct answer is option C.
94. Liners of bags are usually made of
polythene
PVC
polypropylene
polyesters
✅ The correct answer is option C.
95. In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
polythene
PVC
rayon
polyvinyl acetate
✅ The correct answer is option B.
96. Low pressure Zeigler process of polythene manufacture
employs a pressure of 30 kgf/cm2.
achieves an yield of 95-98% based on ethylene.
produces very low density polythene.
does not use any catalyst for polymerisation.
✅ The correct answer is option B.
97. Thermosetting plastic materials
can be repeatedly melted.
is useful for melt casting.
can not be melted after forming.
is useful for spinning.
✅ The correct answer is option C.
98. Rain coats are made of
neoprene
PVC
polyurathane
SBR
✅ The correct answer is option B.
99. Buna-S is a __________ material.
fibrous
plastic
resinous
rubbery
✅ The correct answer is option D.
100. Polythene is a/an
addition polymerisation product.
condensation polymerisation product.
thermosetting material.
none of these.
✅ The correct answer is option A.