Category: Polymer Technology

A. -5
B. 10-30
C. 250-280
D. 500-600

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

A. Greater the degree of cross-linking in the polymer, lesser is its solubility
B. Polymers having more aliphatic character are more soluble in aliphatic solvents, while those polymers having more aromatic character are more soluble in aromatic solvents
C. Swelling tendency or solubility of polymers in a particular solvent decreases with increase in molecular weight of the solvent
D. High molecular weight polymers on dissolving gives solution of very low viscosity

A. Polyamide
B. Thermosetting resin
C. Polyester
D. None of these

A. Unsaturated polyester
B. Alkyd resins
C. Saturated polyester
D. Amino resins

A. Cellulose
B. Dacron
C. Nylon-6
D. None of these

A. Elasticity
B. Plasticity
C. Ductility
D. None of these

A. Hexamethylene diamine and adipic acid
B. Adipic acid and methyl amine
C. Vinyl chloride and formaldehyde
D. None of these

A. Polysulphide rubber
B. Polyamide fibre
C. Engineering plastic
D. Expanded polystyrene

A. Chain length
B. Intermolecular forces
C. Both A. and B.
D. None of these