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Plastic Processing Operator Practice Test: Extrusion Moudling Techniques
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Related: Plastic Processing Operator Practice Test: Blow moulding techniques

Plastic Processing Operator Practice Test: Extrusion Moudling Techniques
Time left 00:00
25 Questions

1. Which process produce long plastic rods and tubes?
2. Which material is used for thermoforming process?
3. What is the couse for continuous line defect on the extruded pipe?
4. Why streaks occurs on surface of sheet?
5. What is blow-ratio?
6. What type of energy is developed by rotation of screw?
7. What is the function of die in extrusion?
8. Which is reinforced by a breaker plate since the pressure at this point can exceeds 5000 psi in extrusion?
9. How casing- caping is sized in extrusion process?
10. What is the material of screw in the extrusion process?
11. What type of material is used to make garden pipe?
12. Which material is used in huge quantities to make agriculture pipes?
13. What is meant by L/D ration?
14. What is the length of screw in metering zone?
15. Which is a heat sensitive polymer?
16. How the poly propylene film is manufactured?
17. What is the principle of 4 R?
18. What is the function of breaker plate in extrusion?
19. What is the length of compression zone in a screw in the extrusion process?
20. Which media is used to blow the film?
21. What is the application of polymer extrusion?
22. What is the use of PVC in electrical field?
23. How to construct the base of Impact extrusion compare to its side wall?
24. What type of sizing unit is used for sizing internal diameter of pipe?
25. Which type of production having no punch fitted centrally into die?

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