Polymer Technolgy MCQs

Question 1

The synthetic fibres produced from __________ are known as rayon.

Accepted Answer

Cellulose

Answer

Lignin

Answer

Polyamides

Answer

Ethylene glycol

Question 2

__________ is a natural fibre.

Accepted Answer

Cellulose

Answer

Dacron

Answer

Nylon-6

Answer

None of these

Question 3

Plasticisers are added to synthetic plastics to

Accepted Answer

All of the above

Answer

Impart flexibility

Answer

Improve workability during fabrication

Answer

Develop new improved properties not present in the original resin

Question 4

Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically

Accepted Answer

Polymethyl methacrylate (PMMA)

Answer

Polytetraflouroethylene(PTFE)

Answer

Polycarbonates

Answer

Phenolic resins

Question 5

Alkyd resin is a/an

Accepted Answer

Polyester

Answer

Polyamide

Answer

Polyolefin

Answer

Addition polymer

Question 6

Trade name of __________ is neoprene.

Accepted Answer

Polychloroprene

Answer

Polyisoprene

Answer

Polytetraflouroethylene

Answer

Poly vinyl acetate

Question 7

SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at

Accepted Answer

1:3

Answer

3:1

Answer

1:2

Answer

2:1

Question 8

Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their

Accepted Answer

Magnitude of intermolecular forces

Answer

Molecular sizes

Answer

Resistance to heat

Answer

Polymerisation mechanism

Question 9

Polyurathane can not be used for making

Accepted Answer

Bottles

Answer

Mattresses & foam

Answer

Coating material

Answer

Adhesives