Polymer Technolgy MCQs

Question 1

Rayon is superior to cotton in making gauge for wound treatment, because rayon

Accepted Answer

Does not stick to the wound unlike cotton

Answer

Is a synthetic polymer

Answer

Can absorb over 90% of its own weight of water

Answer

Both B & C

Question 2

Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is

Accepted Answer

Teflon

Answer

Nylon-66

Answer

Polyester

Answer

Bakelite

Question 3

Plastic tubes & pipes are generally made by __________ moulding.

Accepted Answer

Extrusion

Answer

Injection

Answer

Transfer

Answer

Compression

Question 4

Polypropylene compared to polythene is

Accepted Answer

All of the above

Answer

Harder

Answer

Stronger

Answer

Lighter

Question 5

Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but

Accepted Answer

Polyacrylonitrile

Answer

Polyamide

Answer

Saturated polyester

Answer

Alkyd resin

Question 6

Softening point of high density polythene is about __________ °C.

Accepted Answer

135

Answer

85

Answer

165

Answer

205

Question 7

Zeigler process

Accepted Answer

Produces high density polythene

Answer

Uses no catalyst

Answer

Produces low density polythene

Answer

Employs very high pressure

Question 8

Pick out the wrong statement.

Accepted Answer

Neoprene is a natural rubber

Answer

Polystyrene is a thermoplastic polymer

Answer

Protein is a natural polymer

Answer

Polythene is a copolymer, while SBR is a homopolymer

Question 9

β - glucose is the monomer of

Accepted Answer

Cellulose

Answer

Starch

Answer

Protein

Answer

None of these