A. Rigid foam
B. Engineering plastic
C. Thermosetting polymer
D. Spongy rubber
A. Carbon
B. Alkylated diphenyl amine
C. Thiokol
D. Magnesium
A. 50°C and 3 – 4 kg/cm2
B. 50°C and 1 kgf/cm2
C. 250°C and 10 kgf/cm2
D. 250°C and 1 kgf/cm2
A. Polyamide
B. Polystyrene
C. Polyester
D. Polyacrylonitrile
A. Lignin
B. Cellulose
C. Starch
D. Gelatine
A. Epoxy
B. Phenol formaldehyde
C. Urea formaldehyde
D. Melamine formaldehyde
A. Remain hard as long as they are hot
B. Cannot be reclaimed from waste
C. Permanent setting resins
D. Less brittle than thermosetting resins
A. Thermoplastic
B. Thermosetting
C. Elastometric
D. Brittleness
A. Employs a pressure of 30 kgf/cm2
B. Achieves an yield of 95-98% based on ethylene
C. Produces very low density polythene
D. Does not use any catalyst for polymerisation
A. Vulcanite or ebonite
B. Spandex fibre
C. Polysulphide rubber
D. Epoxy resin