A. Polystyrene
B. Polyester
C. High density polythene
D. Polyurethane
Related Mcqs:
- _______________ is normally used for the manufacture of refrigerator components and transistor parts?
A. Polypropylene
B. Polystyrene
C. Polyester
D. Polyurethane - Neoprene is rendered non-inflammable, because of_____________________?
A. Its cross-linked structure
B. Its linear chain structure
C. The presence of chlorine atoms in its monomer
D. The absence of chlorine atoms in its monomer - Automobile steering wheels are normally made of__________________?
A. Cellulose acetate
B. Cellulose nitrate
C. PVC
D. High density polythene - Lavatory cisterns are normally made of ________________?
A. Expanded polystyrene
B. Saturated polyester
C. Perspex
D. PVC - Plastic articles are normally produced by _____________ moulding?
A. Green sand
B. Injection
C. Shell
D. Dry sand - ______________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine?
A. Epoxy
B. Amino
C. Alkyd
D. Phenolic - Which of the following is the most important rubber compounding ingredient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness ?
A. Phosphorous
B. Carbon black
C. Pine oil
D. Rosin - Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces________________?
A. Nylon-6
B. Dacron
C. Polyester
D. PVC - Which of the following is a natural polyamide fiber?
A. Wool
B. Silk
C. Cotton
D. None of these - Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the ___________________?
A. Electrical insulation purpose
B. Tanning of leather
C. Strengthening of plaster of Paris
D. Decorative laminates
