Plastic Materials & Testing Paper

          CENTRAL  INSTITUTE  OF PLASTICS ENGINEERING & TECHNOLOGY

                                                      Question Bank

1 MARK—QUESTION

2 MARK ---QUESTION

3 MARK --- QUESTION

4/5 MARK ----QUESTION

COURSE : DPMT 

SEMESTER : III 

SUBJECT : Plastic Materials & Testing

2 MARK ---QUESTION

                                                              ...........

1. WHAT IS NUMBER AVERAGE MOLECULAR WEIGHT

2. EXPLAIN THE TERM “POLYDISPERSITY INDEX”

3. NAME A FEW APPLICATIONS OF POLYSTYRENE

4. WRITE THE STRUCTURE PROPERTY RELATIONSHIP BETWEEN ALIPHATIC AND

AROMATIC POLYESTERS WITH MELTING POINT

5. GIVE EXAMPLES OF TOUGH AND SOFT PLASTIC MATERIAL

6. WHAT IS A STRESS STRAIN CURVE USED, INCASE OF PLASTIC MATERIALS

7. WHAT IS THE FULL FORM OF BIS & ASTM STANDARDS

8. WHAT IS PRECONDITIONING? WHY DO WE DO IT PRIOR TO TESTING?

9. WHAT ARE THE DIFFERENT TYPES OF POLYMERIZATION

10. DIFFERENCE BETWEEN HOMOPOLYMER AND COPOLYMER, WITH EXAMPLES

11. DIFFERENCE BETWEEN HETEROCHAIN POLYMER AND HOMO CHAIN POLYMER,

WITH EXAMPLES

12. DIFFERENCE BETWEEN ORGANIC POLYMERS AND INORGANIC POLYMERS,

WITH EXAMPLES

13. WHAT IS A POLYMER BLEND

14. EXPAIN THE TERM “FRP”

15. WHAT ARE PET FIBERS? MENTION TWO APPLICATIONS

17. APPLICATIONS OF ARAMID FIBERS

18. NAME ANY FOUR MECHANICAL PROPERTIES FOR TESTNG OF PLASTIC

19. WHAT IS GLASS TRANSITION TEMPERATURE

20. WHAT IS Tg GLASS TRANSITION TEMPERATURE?

21. WHAT ARE THE APPLICATIONS OF PHENOL FORMALDEHYDE?

22. WHAT IS MELAMINE FORMALDEHYDE?

23. WHY ARE PLASTICS YUSED IN FOOD PACKAGING INDUSTRIES?

24. EXPLAIN MFI. ALSO MENTION ITS UNITS

25. WHAT IS THE FULL FORM OF NABL & ISO.

26. MENTION THE APPLICATIONS OF PHENOL FORMALDEHYDE

27. WRITE DOWN THE WORKING PRINCIPLE OF DIELECTRIC CONSTANT TESTER

28. WHAT IS DSC. HOW IS IT USEFUL IN FINDING THE PROPERTIES OF POLYMERS?

29. WHAT IS CRYSTALLANITY? NAME AY ONE POLYMER HAVING HIGHEST

CRYSTALLINITY?

30. WHAT DO YOU MEAN BY “SELF EXTINGUISHING IN NATURE”. GIVE ONE

EXAMPLE.

31. WHAT IS LCP? WRITE TWO APPLICATIONS OF LCP POLYMERS.

32. WHAT ARE FIBERS? WHICH FIBERS ARE USED FOR HIGH TEMPERATURE

COMPOSITE APPLICATIONS.

33. WHY DO THE IMMISCIBLE BLENDS EXHIBIT POOR MECHANICAL PROPERTIES

34. WHAT IS BOPP? EXPALINITS APPLLICATIONS.

35. WHAT IS RIM TECHNOLOGY? WHICH THERMOSET RESIN IS IT USED FOR.

36. WHAT DO YOU UNDERSTAND BY THE APPLICATION OF EPOXY RESING FOR

”POTTING AND ENCAPSULATING MATERIALS”?

37. EXPLAIN THE PROPORTIONALITY OF MFI TO VISCOSITY.

38. WHAT IS ASTM STANDARD? EXPLAIN THE ASTM TEST METHOD FOR TENSILE

PROPERTIES

39. WHAT IS HDT? DEFINE GIVNG THE DEFLECTION OF STANDARD BAR.

40. WHAT IS VST? MENTION THE ASTM STANDARD & HEATING RATE FOLLOWED IN

VST TEST.

41. WHAT IS IEC? HOW IS IEC RELATED TO PLASTICS?

42. WHT IS FATIGUE PROPERTY FOR PLASTICS?

43. WHAT IS REFRACTION? WRITE THE DIMENSIONS OF REFRACTIVE INDEX.

44. WHAT IS CAPILLARY VISCOMETER USED FOR?

45. WHAT IS DENSITY? EXPLAIN THE DIFFERENCES IN DENSITIES OF POLYOLEFINS,

PVC AND WATER

46. EXPLAIN THE DIFFERENCE BETWEEN TENSILE MODULUS AND TENSILE

STRENGTH

47. STATE THE ZIGLER NATTA PROCESS FOR MANUFACTURING OF HDPE, IN BRIEF.

49. ENLIST THE DIFFERENCE BETWEEN HIPS & GPPS