dpt plastics material question bank

          CENTRAL INSTITUTE OF PLASTICSENGINEERING & TECHNOLOGY

                                      Question Bank

1 MARK—QUESTION

2 MARK ---QUESTION

3 MARK --- QUESTION

4/5 MARK ----QUESTION

COURSE      : DPT 

SEMESTER : IV

SUBJECT    :plastic material II

3 mark  Question 

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1.What do you meant by speciality plastics? Give examples of them.

2.Distinguish between PVF and PVDF

3.Write any important properties of  poly aryl ether sulphone.

4.Distinguish between PI and PAI

5.PTFE is Excellent Chemical resistance. Justify

6.Write any important properties of  poly aryl ether ketones.

7.Draw the structure of PEK,PEEK,PEEKK

8.Write important applications of LCP.

9.Write trade name of following plastics

a.PEEK    b.PTFE       c.PI

10.Speciality plastics are difficult to process. Justify

11.Distinguish between polymer blends and polymer alloys?

12.What are the thermodynamics rule for polymer miscibility?

13.What are alloys with examples.

14.What is miscible blends? Give examples?

15.All alloys are blends all blends are not a alloys. Justify?

16.Write the advantages and applications of blends?

17.Distinguish   between homogeneous and heterogeneous blend.

18.What is solution blending process?

19.What is melt blending process and its advantages?

20.Blending improves the processability.Justify

21.Distinguish between SMC and DMC

22.What are the resins used in composites preparation.?

23.What is contact molding process in composites preparation.

24.Write short notes on Hand layup process.

25.Write short notes on Spray layup process.

26.What is Filament winding?

27.Distinguish between pressure bag and vaccum bag molding?

28.Write short notes on resin transfer molding.

29.Explain any one continuous process used in composite preparation.

30.Write short notes on centrifugal casting process.

31.What are the  technological requirement of additives?

32.What are the desirable characteristics of filler to used as a additives?

33.Write short notes on antioxidants.

34.What is heat stabilizers and its role in polymer processing?

35.Write short notes on light stabilizers.

36.Write the general mechanisms of flame retardants.

37.What is impact modifiers and its role?

38.What is softeners and its role?

39.Write short notes on blowing agents.

40.What is colorants and its types?

41.What is compounding and its role?

42.What is batch mixing and its types?

43.What is continuous mixing and its types?

44.Write short notes on internal intensive batch mixers.

45.Distinguish between ribbon blendes and planetary mixers.

46.Write the principle and applications of two roll mills?

47.Write short notes on single screw extruder.

48.Write short notes on twin screw extruder.

49.Distinguish between distributive and dispersive mixing.

50.What are the advantages of continuous mixing over  batch mixing?