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Saturday, May 7, 2016

CIPET Old DPT / DPMT 2012 Question Paper

Searching for the old question papers of CIPET DPT / DPMT? Here is the previous year question paper from CIPET. This is the original question paper for CIPET regular students. You can freely download the question paper from here and use it to prepare for your upcoming exams from CIPET. Share this post to many of your friends who are searching for this question paper.

Duration : 3 Hours
Max. Marks: 60
Course : DPMT/PD–PMT
Date: 26.06.2012
Subject : Plastics Mould Design Theory - II
Time : 10.00 a.m. to 01.00 p.m.

Answer all questions 10 x 1 = 10

1. Compression Mould used for Thermoplastics material - say true or false.
2. Cooling medium for transfer mould is ___________________________.
3. Wire coating die used in gas injection mould - say true or false.
4. We take ________ watts /Kg for calculation of heat in compression mould imperially.
5. Convergent section angle is _______________.
 30º - 50º b)  20º - 60º c)  10º - 30º d)  15º - 45º
6. In thermosetting moulds normally cartridge heaters are used - say true or false.
7. In general, the runner wastage in hot runner mould is ___________________.
minimum b)  maximum c)  nil d)  normal
8. Preform is used in _____________________________.
9. Automatic unscrewing mould is used for _____________________________.
 internal thread b)  external thread c)  Both a & b   d)  none of these
10. Pot area of Transfer mould is ______________________________________.
                    a)  more than the projected area b)  less than the projected area
                   c)  equal to projected area d)  all of these

Answer all questions (Max. 40 words)   5 x 2 = 10

1. What are the types of Compression mould ?
2. What are the heat losses and additions taken into account for heat calculation ?
3. What are the ratios used in extrusion process ?
4. Write the formulae for calculating the clamping tonnage for the following.
                     a)  Compression Mould b)  Blow mould
5. What is outsert moulding ?

Answer any six questions (Max. 100 words)  6 x 4 = 24

1. What is the difference between Hot runner mould and Insulated runner mould ?
2. What is pinch-off ?  What are the types ?  Explain any one with simple sketch.
3. What are the types of Hot runner manifolds ?  Draw the sketch for any one.
4. What is Die Gap and Die land ?
5. What are the advantages and disadvantages of Transfer mould ?
6. Define bulk factor ?  How you find LCD in compression mould ?
7. What do you mean by Approach Section and Land section ?

Answer any two questions (Max. 300 words)  2 x 8 = 16
Draw the horizontal flash compression mould drawing for a suitable component and mention all the parts with  heat treatment.
2. What are the types of dies for sheet extrusion ?  Explain any one with neat sketch.
3. Write short notes on the following:
                   a)  Gas injection mould b)  Structural foam mould c)  Stretch blow mould

Download Link: CIPET Old DPT / DPMT 2012 Question Paper in Word Doc

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