JAYA ENGINEERING COLLEGE-THIRUNINRAVUR
7th SEM – B.E. / B.Tech
MODEL EXAM-I
Sub. Name: BASICS IN MANUFATURING AND
Date: 22/09/2021
METAL CUTTING PROCESS
Branch: AERO
Sub. Code: OPR 751
Max.Marks: 100
Duration: 180 minutes
_____________________________________________________________________________________
Part A
10X2=20
1. What are the various operations that can be performed in a lathe?
2. What do you mean by (a) Facing (b) Knurling? What is meant by drag polar?
3. What are the major components of a lathe machine? What is SFC and TSFC?
4. What are the holding devices in lathe?
5.
What is parting off operations?
6. Write down about tumbler gear mechanism.
7. Write down the application of a shaper machine.
8. What are the major components of a shaper machine?
9. How do you specify a shaper ?
10. What is speed ,feed and depth of cut for a shaper ?
Part B
5 X 13=65
11)a)Define production process and Explain different types of production process.
(13)
(or)
b) Differentiate between a capstan lathe and a turret lathe with figure.
(13)
12)a) With neat sketch show various components of a lathe and briefly explain their functions.
(13)
(or)
b) Explain with neat diagram work holding devices in lathe.
13) a) What is taper turning ? Write down various methods of taper turning with figure.
(or)
(13)
(13)
b) What are the operations done by shaper machine and explain it with neat sketch
14) a) With neat sketch show various components of a shaper and explain their functions.
(13)
(13)
(or)
b) Explain working and construction of Tool head.
(13)
15.)a) Explain quick return mechanism through sketch.
(13)
(or)
b) write down the formulas for simple calculations of finding velocity , depth of cut , stroke length ,
no of strokes , total machine time and any one example problem.
(13)
PART – C
16) a) What are the different operations done by lathe and explain it with neat sketch
1x 15= 15
(15)
(or)
b) Explain the automatic table feed mechanism for a shaper(Ratchet , pawl mechanism) (15)