ALTERNATING CURRENT AND VOLTAGE QUIZ

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

1.05

0.99

0.95

1.18

TRUE ANSWER : ?
YOUR ANSWER : ?

Bakelite (phenol-formaldehyde) resin can not be used as

Electrical insulation

Glass reinforced plastics

Decorative laminates

Decorative paint

TRUE ANSWER : ?
YOUR ANSWER : ?

Nylon-66 compared to nylon-6 has

All of these

More abrasion resistant properties

Higher hardness

Lower melting point

TRUE ANSWER : ?
YOUR ANSWER : ?

Thermoplastic resins usually

Less brittle than thermosetting resins

Can not be reclaimed from waste

Remain hard as long as they are hot

Permanent setting resins

TRUE ANSWER : ?
YOUR ANSWER : ?

Liners of bags are usually made of

Polypropylene

PVC

Polythene

Polyesters

TRUE ANSWER : ?
YOUR ANSWER : ?

Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins.

Melamine formaldehyde

Urea formaldehyde

Epoxy

Phenol formaldehyde

TRUE ANSWER : ?
YOUR ANSWER : ?

Branched chain polymers compared to linear polymers have higher

Melting point

Tensile strength

Degree of irregularity in atomic packing

Density

TRUE ANSWER : ?
YOUR ANSWER : ?

The only natural thermoplastic resin, which is a product of animal life is

Amber

Rosin

Shellac

Copal

TRUE ANSWER : ?
YOUR ANSWER : ?

Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is

Chloroethane

Chlorophrene

None of these

Isoprene

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Polyacrylonitrile

Alkyd resin

Saturated polyester

Polyamide

TRUE ANSWER : ?
YOUR ANSWER : ?

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