Q1. What do you mean by palletizing unit? Where it is employed? Describe a process plant layout for the sheet extrusion of plastic.

Q2. Compare and contrast the calendaring and extrusion: any four points.

Q3. prepare down the materials and application which are used for calendaring.

Q4. prepare down the properties and applications of the polyurethane foam?

Q5. Describe the fundamental process to manufacture the PS foam.

Q6. What do you mean by structural foams? Describe its properties and applications.

Q7. prepare down the properties and applications of the PVC foam?

Q8. Draw and describe the method of ultrasonic welding.