POLYMER TECHNOLOGY QUIZ

Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres.

Polyester

Nylon 6:6

Acrylic

Polypropylene

TRUE ANSWER : ?
YOUR ANSWER : ?

Polymethyl methacrylate, which is an acrylic resin, is also called

Thiokol

Dacron

Plexiglass or lucite

Teflon

TRUE ANSWER : ?
YOUR ANSWER : ?

Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature.

Polyacrylonitrile

Nylon

Polypropylene

Polyester

TRUE ANSWER : ?
YOUR ANSWER : ?

All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it can not be used for the production of plastic

Buckets

Filaments

Pipes

Tubings

TRUE ANSWER : ?
YOUR ANSWER : ?

90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C.

500-600

250-280

-5

10-30

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has the weakest intermolecular forces?

Bakelite

Polystyrene

Nylon-66

Polyisoprene

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is stretched into fibres?

Saturated polyester

Bakelite

Unsaturated polyester

Isoprene

TRUE ANSWER : ?
YOUR ANSWER : ?

Density of low density polythene is about __________ gm/c.c.

0.81

0.56

0.91

0.38

TRUE ANSWER : ?
YOUR ANSWER : ?

Bristles of tooth brushes are made of

Nylon-6

Nylon-66

PVC

Polystyrene

TRUE ANSWER : ?
YOUR ANSWER : ?

Cellulose is the main contituent of most __________ fibres.

Spandex

Synthetic

Natural

Acrylic

TRUE ANSWER : ?
YOUR ANSWER : ?

↑