POLYMER TECHNOLOGY QUIZ

Polymerisation of poly functional monomers produces polymers having

Low melting point

Low viscosity

Good machanical strength

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Properties of a polymer is affected by the

All of these

Chain length

Branching & cross-linking

Intermolecular forces

TRUE ANSWER : ?
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Flexible plastic pipes are made of

Polypropylene

High density polyethylene (HDPE)

Unsaturated polyester

Low density polyethylene (LDPE)

TRUE ANSWER : ?
YOUR ANSWER : ?

Main constituent of cotton fibre is

Cellulose

Starch

Gelatine

Lignin

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ is not a polyester fibre.

Nylon

Dacron

Polyacrylonitrite

Terylene

TRUE ANSWER : ?
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Diphenylamine is added to rubber to

Valcanise it

Make it non-inflammable

Make it thermosetting

Protect it from deterioration on exposure to air

TRUE ANSWER : ?
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Polymethyl methacrylate, which is an acrylic resin, is also called

Plexiglass or lucite

Teflon

Thiokol

Dacron

TRUE ANSWER : ?
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Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are

- 20°C and 1 kgf/cm²

0°C and 3 kgf/cm²

5°C and 1 kgf/cm²

0°C and 1 kgf/cm²

TRUE ANSWER : ?
YOUR ANSWER : ?

Styrene butadiene rubber is commercially manufactured by

Solution polymerisation

Emulsion polymerisation

Suspension polymerisation

Bulk polymerisation

TRUE ANSWER : ?
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Addition of stabiliser during PVC manufacture is done to

Prevent its thermal degradation

Improve its impact strength

Reduce the melt viscosity & glass transition temperature

Improve its elasticity

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YOUR ANSWER : ?

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