Polymer Technology

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

A. 50
B. 75
C. 90
D. 99