POLYMER TECHNOLOGY QUIZ

Contact lenses for eyes are made of perspex, which is nothing but

Polymethylmethacrylate

Unsaturated polyester

Polypropylene

Polystyrene

TRUE ANSWER : ?
YOUR ANSWER : ?

Amino resins are used in paper treatment to improve its

Wet tear and bursting strength

Wet rub resistance

Folding endurance

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The major component of acrylic fibres is

Polyolefins

Polyacrylonitrile

Polyamides

Polyesters

TRUE ANSWER : ?
YOUR ANSWER : ?

Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6.

250-280

-20 to 25

50 to 75

100 to 150

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a condensation polymer?

Melamine polymer

None of these

Polymethylmethacrylate (PMMA)

Bakelite

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is generally not used as eord for synthetic rubber tyre casing?

Dacron

Cellulose

None of these

Nylon

TRUE ANSWER : ?
YOUR ANSWER : ?

Valcunisation of rubber decreases its

Working temperature range

Tackiness

Tensile strength

Resistance to organic solvents

TRUE ANSWER : ?
YOUR ANSWER : ?

Polymerisation process in which two or more monomers of chemically different nature take part is called

None of these

Copolymerisation

Addition polymerisation

Chain polymerisation

TRUE ANSWER : ?
YOUR ANSWER : ?

Dacron (or terylene) fibres as compared to nylon fibres have

Poorer dyeability

Poorer resistance to alkalis

Better heat & acid resistant properties

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following low molecular weight (

Cellulose acetate

Polyvinyl acetate

PVC

Thiokol

TRUE ANSWER : ?
YOUR ANSWER : ?

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