Polymer Technolgy MCQs

Question 1

Thermal pyrolysis of ethylene dichloride produces

Accepted Answer

Vinyl chloride

Answer

Trichlorethylene

Answer

Ethanol amine

Answer

Ethylene oxide

Question 2

The monomer of poly vinyl chloride (PVC) is

Accepted Answer

Chloroethene

Answer

Ethylene dichloride

Answer

Ethyl chloride

Answer

Chloroform

Question 3

Molecular weight of polymers are in the range of

Accepted Answer

10 2 - 10 7

Answer

10 - 10 3

Answer

10 7 - 10 9

Answer

10 9 - 10 11

Question 4

Vulcanisation of rubber does not increase its

Accepted Answer

Plasticity

Answer

Elasticity

Answer

Ductility

Answer

None of these

Question 5

__________ fibres are made of polyamides.

Accepted Answer

Nylon

Answer

Dacron

Answer

Rayon

Answer

Orion

Question 6

Gutta parcha rubber is

Accepted Answer

An isomer of natural rubber

Answer

Soft & tacky at room temperature

Answer

A thermosetting resin

Answer

Recovered by coagulation of rubber latex

Question 7

Which of the following is an elastomer?

Accepted Answer

Thiokol

Answer

Phenol formaldehyde

Answer

Urea formaldehyde

Answer

Polystyrene

Question 8

The repeating units of PTFE are

Accepted Answer

F 2 C = CF 2

Answer

Cl 2 CH = CH 3

Answer

F 3 C = CF 3

Answer

FClC = CF 2

Question 9

Which of the following polymers shows the highest anti-tacking properties?

Accepted Answer

Melamine formaldehyde resin

Answer

Phenolic resin

Answer

Epoxy resin

Answer

Alkyd resin