Polymer Technolgy MCQs

Question 1

Pickout the wrong statement.

Accepted Answer

Polymers made of only one monomer is called homopolymer

Answer

Polymers made of more than one monomer is called copolymer or mixed polymer

Answer

Vulcanised rubber is more elastic than natural rubber

Answer

The intermoleculer forces in ther-mosplastic polymers are intermediate to that of elastomers & fibres

Question 2

The monomer for the production of neoprene rubber is

Accepted Answer

Chloroprene

Answer

Acetylene

Answer

Isoprene

Answer

None of these

Question 3

Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of

Accepted Answer

Butyl rubber

Answer

Cold SBR

Answer

Bunai N

Answer

Buna S

Question 4

In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

Accepted Answer

Hexamethylene diamine and the adipic acid

Answer

Hexamethylene diamine and the ring

Answer

Adipic acid and the ring

Answer

None of these

Question 5

Which of the following is not a polyolefin?

Accepted Answer

Neoprene

Answer

Polystyrene

Answer

Polypropylene

Answer

None of these

Question 6

Which of the following is not an elastomer?

Accepted Answer

None of these

Answer

Polyisoprene

Answer

Neoprene

Answer

Nitrile-butadiene

Question 7

Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids?

Accepted Answer

Proteins

Answer

Starch

Answer

Cellulose

Answer

Nucleic acids

Question 8

Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is

Accepted Answer

7 kgf/cm 2 and 70°C

Answer

1000 kgf/cm 2 and 100°C

Answer

7 kgf/cm 2 and 700°C

Answer

1 kgf/cm 2 (gage) and 70°C

Question 9

Polymerisation of poly functional monomers produces polymers having

Accepted Answer

Good machanical strength

Answer

Low viscosity

Answer

Low melting point

Answer

None of these