Polymer Technolgy MCQs

Question 1

The generic chemical name for the class of polymers which are commerically known as nylons is

Accepted Answer

Polyamide

Answer

Polyolefins

Answer

Polyacrylate

Answer

Polyurathane

Question 2

Transistor parts and refrigerator components are normally made of

Accepted Answer

Polystyrene

Answer

Polyester

Answer

High density polythene

Answer

Polyurathane

Question 3

Ion exchange resins are made of

Accepted Answer

Sulphonated bakelite

Answer

Lucite

Answer

Polystyrene

Answer

Teflon

Question 4

Which of the following types of polymers has the strongest inter particle forces?

Accepted Answer

Thermosetting polymers

Answer

Elastomers

Answer

Fibres

Answer

Thermoplastics

Question 5

Pick out the wrong statement.

Accepted Answer

Dacron fibres, acrylic fibres, viscose rayon fibres & cellulose acetate fibres are all prepared by wet spinning

Answer

Denier is defined as weight in gm of 9000 metres length of a fibre, while tex is defined as weight in gm of 1000 metres length of fibre

Answer

Crimp is a measure of the difference between the length of the straightened and unstraightend fibre

Answer

Nylon fibres have greater water absorption capacity than polyester fibres

Question 6

Orion is

Accepted Answer

Obtained by polymerising vinyl cyanide

Answer

A copolymer

Answer

A condensation polymer

Answer

All of the above

Question 7

__________ moulding is used for shaping of thermosetting plastics exclusively.

Accepted Answer

Transfer

Answer

Compression

Answer

Injection

Answer

Extrusion

Question 8

Which of the following is not a polymer of two monomers?

Accepted Answer

Teflon

Answer

Bakelite

Answer

SBR

Answer

None of these

Question 9

Catalyst used in the production of high density polythene by low pressure Ziegler process is

Accepted Answer

Aluminium triethyl activated with TiCl 4

Answer

Platinum

Answer

Molybdenum

Answer

Nickel