POLYMER TECHNOLOGY QUIZ

Which of the following is not a natural polymer?

Polyisoprene

Nucleic acids e.g. RNA and DNA

Polyurethane

Polysaccharides

TRUE ANSWER : ?
YOUR ANSWER : ?

Thiokol is nothing but

Polysulphide rubber

Polyamide fibre

Engineering plastic

Exponded polystyrene

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

1-1000

1000-1500

TRUE ANSWER : ?
YOUR ANSWER : ?

Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used

As plasticiser for PVC & nitrocellulose

For surface coating of automobiles & air crafts

For fibre making

For film forming materials

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a natural fibre?

Wool

Viscose rayon

Cotton

Silk

TRUE ANSWER : ?
YOUR ANSWER : ?

Styrene butadiene rubber (SBR) is never used for making

Soles of shoes

Front wheel tyres of aeroplanes (i.e., heavy duty tyres)

Coated fabrics

Gaskets

TRUE ANSWER : ?
YOUR ANSWER : ?

Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten

Teflon

Bakelite

SBR

PVC

TRUE ANSWER : ?
YOUR ANSWER : ?

Polymerisation of poly functional monomers produces polymers having

Good machanical strength

Low melting point

Low viscosity

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Polycaprolactum (Nylon - 6) is produced by the condensation polymerisation of caprolactum at 240-280°C in which the conversion of caprolactum is about __________ percent.

90

99

50

75

TRUE ANSWER : ?
YOUR ANSWER : ?

Polyvinyl acetate is never used for making

Fibres

All of these

Moulded articles

Adhesives

TRUE ANSWER : ?
YOUR ANSWER : ?

↑