POLYMER TECHNOLOGY QUIZ

Softening point of high density polythene is about __________ °C.

85

165

135

205

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following polymers does not belong to the class of polyacrylate polymer?

PMMA

Polyacrylonitrile

Polyethyl acrylate

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The rate controlling step in the manufacture of silicone rubber is the

Initial hydrolysis of silicone monomer

Condensation of siloxane to silicone

None of these

Polymer termination step

TRUE ANSWER : ?
YOUR ANSWER : ?

The generic chemical name for the class of polymers which are commerically known as nylons is

Polyurathane

Polyamide

Polyacrylate

Polyolefins

TRUE ANSWER : ?
YOUR ANSWER : ?

Size range of polymer molecules varies from __________ metre.

10⁻² to 10⁻⁵

10⁻⁸ to 10⁻¹⁰

10⁻¹ to 10⁻²

10⁻⁴ to 10⁻⁷

TRUE ANSWER : ?
YOUR ANSWER : ?

Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as

Anti-shrinkage agents

Transparency improver

Hardeners

Plasticisers

TRUE ANSWER : ?
YOUR ANSWER : ?

Bakelite is a/an

Thermoplastic

Addition polymer

None of these

Elastomer

TRUE ANSWER : ?
YOUR ANSWER : ?

Main constituent of cotton fibre is

Lignin

Gelatine

Starch

Cellulose

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is generally not used as eord for synthetic rubber tyre casing?

Cellulose

Nylon

None of these

Dacron

TRUE ANSWER : ?
YOUR ANSWER : ?

β - glucose is the monomer of

Starch

Protein

None of these

Cellulose

TRUE ANSWER : ?
YOUR ANSWER : ?

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