***************
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER – IV • EXAMINATION – SUMMER- 2016
Subject Code: 3341901 Date: 13- 05- 2016
Subject Name: MANUFACTURING ENGINEERING – II
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable & Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
***************
Q.1 Answer any seven of ten. 14
1. Give classification of basic manufacturing processes used inengineering.
2. Define the term “Metal Removal Rate”.
3. State the different methodsof holding the work on a lathe.
4. Why quick return mechanism is necessary for shaper?
5. List the tool holding devices used on drilling machine.
6. State the function of “Knee” and “Arbor” of a milling machine.
7. List the standard tool holdersused on turret and capstan lathe.
8. State various types of chip breakers.
9. List the operations perform on shaping machine.
10. List the operations perform on lathe machine.
Q.2 (a) State the need for using cutting fluid. 03
OR
(a) Differentiate between forming and generating processes. 03
(b) What are the Steady and Follower rest? Why are they used? 03
OR
(b) Explain working of half nut on lathe. 03
(c) Classifythe cutting tools. 04
OR
(c) What are the properties of good tool material? 04
(d) Draw a line sketch of lathemachine and label the various parts. 04
OR
(d) Explain radial drilling machine with sketch 04
Q.3 (a) Give the name of important types of chips. Describe the circumstances under which each type of chip is formed. 03
OR
(a) Explain mechanism of cutting process. 03
(b) Give classification of standard milling cutters. 03
OR
(b) Explain importance of cutting forces and state which force is responsible for power requirement. 03
(c) How shaping machine and planer differs in construction and working? 04
OR
(c) Draw line diagram of Shaping Machine and describe its working. 04
(d) Enlist different methods of indexing used on milling machine. Explain any one. 04
OR
(d) Explain in brief “Gang milling “and “End milling” operation. 04
Q.4 (a) With the help of block diagram explain working of slotting machine. 03
OR
(a) List the work holders used on (1) Drilling machine (2) Shaping machine 03
(3) Milling machine
(b) State the difference between Turret and Capstan lathe. 04
OR
(b) Draw a line diagram of double housing planer & state its function and construction. 04
(c) Explain “Crank and slotted link mechanism” of shaper. 07
Q.5 (a) State the basic difference between conventional milling andclimb milling. 04
(b) Draw a neat sketch of single point cutting tool and show various element and angles. 04
(c) Define Tool life and statethe factors affecting it. 03
(d) Explain any two typesof carbide insert. 03
***************
No comments:
Post a Comment