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Polymer Technology

Polymer Technology
Which of the following is not a polyolefin?

Polystyrene
Neoprene
None of these
Polypropylene

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Polymer Technology
Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness?

Rosin
Phosphorous
Carbon black
Pine oil

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Polymer Technology
Plasticisers are added to synthetic plastics to

Develop new improved properties not present in the original resin
Impart flexibility
Improve workability during fabrication
All of these

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Polymer Technology
__________ is not a condensation polymer.

Polystyrene
Nylon-66
Teflon
Dacron

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Polymer Technology
__________ moulding is used for shaping of thermosetting plastics exclusively.

Extrusion
Compression
Injection
Transfer

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Polymer Technology
Flexible plastic pipes are made of

Polypropylene
High density polyethylene (HDPE)
Unsaturated polyester
Low density polyethylene (LDPE)

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