Polymer Technology

A. Low temperature thermal insulation as in refrigerator and air conditioners
B. Acoustic control and ceiling for building
C. High temperature thermal insulation in furnaces
D. Packing of delicate electronic gadgets

A. Sulphur
B. Bromine
C. Platinum
D. Alumina

A. Polythene
B. PVC
C. Polypropylene
D. Polyesters

A. Nylon
B. Bakelite
C. Polythene
D. None of these

A. Thiokol
B. Phenol formaldehyde
C. Urea formaldehyde
D. Polystyrene

A. Injection
B. Transfer
C. Extrusion
D. Compression

A. Vulcanise it
B. Protect it from deterioration on exposure to air
C. Make it non-inflammable
D. Make it thermosetting

A. -20
B. 50
C. 250
D. 500

A. Green sand
B. Injection
C. Shell
D. Dry sand

A. Ni
B. V2O5
C. Fe
D. Aluminium triethyl combined with titanium tetrachloride