Category: Polymer Technology

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

A. Thiokol (a polysulphide rubber)
B. Butyl rubber
C. Neoprene
D. Polyurethane rubber

A. Tensile strength
B. Chemical resistance
C. Flexibility
D. All A., B. & C.

A. Cellulose
B. Starch
C. Protein
D. None of these

A. Polystyrene
B. Polyisoprene
C. Polybutadiene
D. Poly chloroprene

A. Starch
B. Cellulose
C. Proteins
D. Nucleic acids

A. Denier is defined as weight in gm of 9000 metres length of a fibre, while tex is defined as weight in gm of 1000 metres length of fibre
B. Crimp is a measure of the difference between the length of the straightened and unstraightened fibre
C. Dacron fibres, acrylic fibres, viscose rayon fibres & cellulose acetate fibres are all prepared by wet spinning
D. Nylon fibres have greater water absorption capacity than polyester fibres

A. Polyamides
B. Polyolefins
C. Polyacrylonitrile
D. Polyesters

A. Bakelite
B. Nylon-66
C. Epoxy resin
D. Silicone rubber

A. 25
B. 50
C. 70
D. 90