1. Pick out the wrong statement
2. Most of the plastics are safe to be used upto a maximum temperature of __________ °C
3. __________ is a natural fibre
4. Pick out the correct statement
5. Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness ?
6. Nylon 6 as compared to nylon 6, 6 has lower
7. Ion exchange resins are made of
8. Which of the following polymers has the tendency of decomposing before melting ?
9. Plastic tubes & pipes are generally made by __________ moulding
10. Which of the following polymers belong to the class of formaldehyde resin ?
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