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Polymer Technology

Polymer Technology
Cellulose is the main contituent of most __________ fibres.

Spandex
Natural
Acrylic
Synthetic

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Polymer Technology
__________ is normally used for the manufacture of refrigerator components and transistor parts.

Polyproylene
Polyester
Polystyrene
Polyurathene

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

1.18
0.95
0.99
1.05

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Polymer Technology
Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber?

Carbon
Magnesium
Alkylated diphenyl amine
Thiokol

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Polymer Technology
Branched chair polymers as compared to linear polymers have

Lower density
Higher tensile strength
None of these
Higher melting point

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Polymer Technology
Non sulphonated hard bakelites are not used for making

Formica table tops
Fountain pen barrels
Ion-exchange resins
Combs

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