GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
Subject Code: 2131903 Date: 28/11/2018
Subject Name: Manufacturing Process-1
Time: 10:30 AM TO 01:00 PM Total Marks: 70
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GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-III (New) EXAMINATION — WINTER 2018Subject Code: 2131903 Date: 28/11/2018
Subject Name: Manufacturing Process-1
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
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- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| MARKS | ||
| Q.1 | (a) Differentiate right hand and left hand single point cutting tools with neat sketches. | 03 |
| (b) Give the comparison between a turret lathe and capstan lathe. | 04 | |
| (c) Explain Radial Drilling machine with net sketch. Write the types of Drill tools. | 07 | |
| Q.2 | (a) Enlist the operations performed on Lathe machine. | 03 |
| (b) Compare the benefits and limitations of a three-jaw chuck over the four-jaw chuck. | 04 | |
| (c) State the advantages of all geared headstock as against a belt driven headstock. Explain the function of a half nut during lathe operation with a neat sketch. | 07 | |
| OR | ||
| (c) A cylindrical work part 125 mm in diameter and 900 mm long is to be turned in an engine lathe. Cutting conditions are: v =2.5 m/s, f=0.3 mm/rev, and depth of cut = 2.0 mm. Determine: (a) cutting time, and (b) metal removal rate. | 07 | |
| Q.3 | (a) How does a boring operation differ from a turning operation? | 03 |
| (b) What is the difference between peripheral milling and face milling? | 04 | |
| (c) Why are reaming-operations performed? Explain Knee type Milling machine in Details. | 07 | |
| OR | ||
| Q.3 | (a) Explain the effect of unequal lips in twist drill. | 03 |
| (b) Describe the difference between up milling and down milling. | 04 | |
| (c) Classified metal cutting sawing machine and explain any two in details. | 07 | |
| Q.4 | (a) Explain reaming and tapping with neat sketches. | 03 |
| (b) List out various milling machine operations and explain any two. | 04 | |
| (c) Explain Drilling and its allied operation in details with application. | 07 | |
| OR | ||
| Q.4 | (a) What is Indexing? Write it application. | 03 |
| (b) Name the alignment tests required for milling machine to give best quality Product. | 04 | |
| (c) With the help of figure, explain ‘Hydraulic shaper mechanism. | 07 | |
| Q.5 | (a) Sketch out the jig-boring machine with notation. | 03 |
| (b) Explain center less grinder using suitable diagram. | 04 | |
| (c) Write advantages, limitations and applications of “Broaching- Machines”. | 07 | |
| OR | ||
| Q.5 | (a) What do you understand about the action of quick return in reciprocating machine tools? | 03 |
| (b) Differentiate between a shaper and planer machine. | 04 | |
| (c) Explain the specifications of a grinding wheel. Explain why a hard wheel is suggesting to grinding a soft material and vice versa. | 07 |
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