POLYMER TECHNOLOGY QUIZ

__________ polymer is used for making unbreakable crockery.

Thermoplastic

None of these

Melamine

Addition

TRUE ANSWER : ?
YOUR ANSWER : ?

Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent.

2000-2500

1500-2000

1000-1500

1-1000

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Density of high density polythene is about __________ gm/c.c.

1.18

0.95

0.99

1.05

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following low molecular weight (

PVC

Cellulose acetate

Polyvinyl acetate

Thiokol

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Which of the following is generally not drawn into fibre?

Unsaturated polyesters

Polyacrylonitrile

Polyamide

Saturated polyesters

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YOUR ANSWER : ?

__________ is produced by polymerisation of chloroprene.

Neoprene

Thiokol (a polysulphide rubber)

Butyl rubber

Polyurathane rubber

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Polyvinyl alcohol is used as a

Non-sticky coating on frying pans

Cation/anion exchanger

Textile fibre

Water soluble adhesive

TRUE ANSWER : ?
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Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is

Bakelite

Teflon

Polyester

Nylon-66

TRUE ANSWER : ?
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Polythene is a/an

Thermosetting material

None of these

Addition polymerisation product

Condensation polymerisation product

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Vulcanisation of rubber does not increase its

Elasticity & water solubility

Softness

Oxidation resistance

Weight & strength

TRUE ANSWER : ?
YOUR ANSWER : ?

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