College : Psg Polytechnic College
Degree :DAE (Diploma in Automobile Engineering)
Semester : IV
Subject : B12403 Production Technology
Document Type : Model Question Paper
Website : psgpolytech.ac.in
Download Model/ Sample Question Papers : https://www.pdfquestion.in/uploads/psgpolytech.ac.in/6219-b12403.pdf
Production Technology Question Paper :
Instructions :
1. Group A and Group B questions should be answered in the Main Answer book.
2. Answer any TEN questions in Group A. Each question carries two marks.
Related : PSG Polytechnic College B12404 Fluid Mechanics & Machinery DAE Question Paper Model : www.pdfquestion.in/6218.html
3. Answer ALL questions either (a) subdivision or (b) subdivision in Group B. Each question carries 14 marks.
PSG POLYTECHNIC COLLEGE, COIMBATORE – 641 004
DIPLOMA EVEN SEMESTER EXAMINATIONS – APRIL 2014
B12403 Production Technology
MODEL QUESTION PAPER
Group – A Marks : 10 x3=30
1. List out the different allowances given to a pattern.
2. What are the properties that the moulding sand should posses-
3. Give the advantages and application of pressure die casting.
4. Compare hot working and cold working processes.
5. Briefly write about the extrusion process.
6. Mention the applications of gas welding.
7. What are the functions of face plate-
8. How is a lathe specified-
9. What are the operations done using a lathe-
10. List the work holding devices used in shaper.
11. What are the tool holding devices used in drilling machine-
12. How to cut T-slot in a milling machine-
13. Classify the types of broaches.
14. Define lapping and honing.
15. List the advantages of CNC turning centre.
Group– B Marks : 5 x 14 = 70
16. a) Narrate the shell moulding process with neat sketch. Write the applications and advantages of shell moulding.
(OR)
b) What is pressure die casting? Explain with neat sketch the working of a hot chamber process.
17. a) What is meant by hot working? Briefly describe any three hot working operations with neat sketch.
(OR)
b) Write short notes on
i) Spot welding ii) Seam welding iii) Projection welding
18. a) Draw a neat sketch of lathe and mark the parts. Explain its working.
(OR)
b) Explain any four operations performed on a lathe with simple sketch.
19. a) Describe the working principal of radial drilling machine with neat sketch.
(OR)
b) Explain with neat sketch the construction and working principle of column and knee type milling machine.
20. a) With the help of neat sketch, discuss the following
i) Horizontal broaching machine ii) Continuous broaching machine
(OR)
b) Draw the neat sketch of cylindrical centre type grinding machine and explain.
Mechanics Of Materials Question Paper :
Time : 3 Hours
Max.Marks : 100
Group – A Marks : 10 x 3 = 30
1. State Hooke’s law.
2. Define factor of safety.
3. A steel rod of 10 mm diameter and 3 m long is subjected to an axial pull of 10 kN. Find the stress induced in the bar.
4. List the various types of beams.
5. Define bending moment.
6. A cantilever beam of length 4m is carrying a point load of 12kN at its free end. Calculate the shear force and bending moment at the fixed end of the beam.
7. List the various assumptions made in theory of simple bending.
8. Define section modulus.
9. What is meant by stiffness of beam?
10. Define torsional rigidity.
11. Write the torsion equation with the units of various terms.
12. A hollow circular shaft is having external diameter 75 mm and internal diameter 40 mm. If the maximum shear stress is not to exceed 80 N/mm2, find the torque transmitted.
13. List the classification of gears.
14. Compare flat belt drive with v-belt drive.
15. What is meant by slip of belt?
Group– B :
Marks : 5 x 14 = 70
16. a) A steel rod 2m long and 200 mm diameter is subjected to an axial pull of 45 KN. Find the changes in i)length ii) diameter iii) volume of the rod, if E=0.2 X 106 N/mm2 and 1/m = 0.3.
(OR)
b) A bar of length 150mm is 50mm in diameter. It is subjected to an axial pull of 400KN. The extension in length and contraction in diameter were found to be 0.25 and 0.02mm respectively. Determine the values of elastic constants.