Category: Polymer Technology

A. Melamine formaldehyde resin
B. Phenolic resin
C. Epoxy resin
D. Alkyd resin

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

A. Coated fabrics
B. Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
C. Gaskets
D. Soles of shoes

A. Plastics are good conductors of heat and electricity
B. All the polymers are highly crystalline in nature
C. Polymers can be vaporised by heating to a very high temperature
D. The liquid polymer becomes greasy, then waxy and finally solid on increasing the degree of
polymerisation

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

A. Electrical insulation
B. Toys making
C. Coating and films
D. Packaging

A. Lower melting point
B. More abrasion resistant properties
C. Higher hardness
D. All A., B. and C.

A. Low density polythene
B. Poly vinyl chloride
C. Polystyrene
D. Polyhexamethylene adipamide

A. Cellulose acetate
B. Cellulose nitrate
C. PVC
D. High density polythene

A. Polystyrene
B. Melamine
C. Polystyrene
D. Polyurethane