Q1. Describe the significance of hardness test for plastics.
Q2. Illustrate a method to find out the flexibility of a plastic film.
Q3. Describe the significance of resistance of plastic materials for microorganism.
Q4. Describe the principle included in the determination of abrasion resistance of a plastic.
Q5. Describe in general, the creep-behavior of plastics.
Q6. Define the given terms:
a) Thixotropy
b) Viscosity
c) Tack
d) Length
Q7. By using a suitable diagram represent flexographic printing method.
Q8. Describe the four properties of computer inks.
Q9. Explain in detail intaglio printing process.
Q10. List out the two advantages, two limitations and two applications of the screen printing technique?