A. Same as Dacron
B. A polyester
C. Both A. & B.
D. Neither A. nor B.
Terylene is_________________? Read More »
Polymer Technology A. Polythene
B. Teflon
C. Bakelite
D. PVC
Which of the following is the lowest cost plastic commercially available ? Read More »
Polymer Technology A. Decorative paint
B. Decorative laminates
C. Electrical insulation
D. Glass reinforced plastics
Bakelite (phenol-formaldehyde) resin cannot be used as________________? Read More »
Polymer Technology A. Nylon-6
B. Nylon-66
C. Dacron
D. Rayon
Polycaprolactam is____________________? Read More »
Polymer Technology A. Density
B. Tensile strength
C. Melting point
D. Degree of irregularity in atomic packing
Branched chain polymers compared to linear polymers have higher ____________________? Read More »
Polymer Technology 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
Polyvinyl chloride (PVC) ____________________? Read More »
Polymer Technology A. Automobile cushion
B. Thermal insulation in refrigerator
C. Coating and adhesive
D. Fibre reinforced plastic (FRP)
Polyurethane cannot be used to make____________________? Read More »
Polymer Technology A. Can be repeatedly melted
B. Is useful for melt casting
C. Cannot be melted after forming
D. Is useful for sning
Thermosetting plastic materials___________________? Read More »
Polymer Technology 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
Dacron is a _____________________________? Read More »
Polymer Technology A. Direct
B. Indirect
C. Impact
D. None of these
Collapsible tubes for tooth paste are produced by _____________ extrusion? Read More »
Polymer Technology