WorksheetsPlastics & Elastomers
Total questions: 7
Worksheet time: 4mins
Plastics and elastomers differ due to their properties of ________
a) Resistivity
b) Dielectric strength
c) Acoustic insulation
d) Extensibility
Which of the following is not a characteristic of rubber?
a) Non-crystalline
b) Electrical conductivity
c) Chemical resistance
d) Low softening temperature
Natural rubber is ____________
a) Poly isoprene
b) Ethylene glycol
c) Butadiene
d) Acrylonitrile
Select the incorrect statement from the following option.
a) Raw rubber is weak and have low tensile strength
b) Raw rubber is attacked by oxidizing agent
c) In organic solvents, it undergoes swelling and disintegration
d) Raw rubber is durable
Which one of the following is a natural polymer
Bakelite
Silk
Kevlar
None of the above
Which of the following is a thermosetting polymer
Terylene
POlystyrene
Bakelite
Neoprene
The nonmetal used in vulcanisation of rubber
Phophorous
Sulphur
Graphite
Iodine
