Polymer Technology

A. Same as Dacron
B. A polyester
C. Both A. & B.
D. Neither A. nor B.

A. Polythene
B. Teflon
C. Bakelite
D. PVC

A. Decorative paint
B. Decorative laminates
C. Electrical insulation
D. Glass reinforced plastics

A. Nylon-6
B. Nylon-66
C. Dacron
D. Rayon

A. Density
B. Tensile strength
C. Melting point
D. Degree of irregularity in atomic packing

A. Is produced by Polycondensation reaction
B. Uses either emulsion or suspension polymerisation methods
C. Can be made thermosetting by adding a plasticiser
D. Softening temperature is 200°C

A. Automobile cushion
B. Thermal insulation in refrigerator
C. Coating and adhesive
D. Fibre reinforced plastic (FRP)

A. Can be repeatedly melted
B. Is useful for melt casting
C. Cannot be melted after forming
D. Is useful for sning

A. Condensation polymerisation product of Hexamethylene diamine and adipic acid
B. Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol
C. Thermosetting material
D. None of these

A. Direct
B. Indirect
C. Impact
D. None of these