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Seat No.: Enrolment No.
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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-III (NEW) EXAMINATION — SUMMER 2019
Subject Code: 2131903 Date: 04/06/2019
Subject Name: Manufacturing Process-1
Time: 02:30 PM TO 05:00 PM Total Marks: 70
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q.1 (a) Explain various factors which are affecting tool life. 03
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(b) Explain the importance of back rake and end relief angles in a single point cutting tool. 04
(c) Define a Basic Machine Tool. Classify them. What are the general requirements of machine tools? 07
Q.2 (a) With the help of figure explain “Taper turning by swiveling the compound rest method. 03
(b) Give the comparison between a turret lathe and capstan lathe. 04
(c) Explain primary and auxiliary motions with reference to machine tool. 07
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OR
(c) State the advantages of all geared head stock as against a belt driven headstock. Explain the function of a half nut during lathe operation with a neat sketch. 07
Q.3 (a) Explain Speed, Feed and Depth of cut in Lathe Machine. 03
(b) Write a short note on “Horizontal Boring Machine” 04
(c) Explain gang drilling machine with a neat sketch. How does it differ from multiple spindle drilling machines? 07
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OR
Q.3 (a) List the operations which can be carried out on drill machine. 03
(b) Write a short note on: “Band Sawing Machine” 04
(c) What are the advantages, limitations and applications of broaching? Explain “Pull broaching” and “Push Broaching”. 07
Q.4 (a) Give classification of milling machine. 03
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(b) Name the alignment tests required to be carried out on a milling machine. 04
(c) Enlist various Milling Operations. Discuss the following operations. 1. Straddle Milling 2. Face Milling 3. End Milling 07
OR
Q.4 (a) What is the principle of working of shaper? 03
(b) State difference between planner and shaper. 04
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(c) With the help of figure explain ‘Hydraulic’ shaper mechanism. 07
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Q.5 (a) State difference between Up-milling & Down-Milling 03
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(b) Explain simple indexing and compound indexing in milling. 04
(c) Draw neat sketch of column & knee type milling machine. Label the main parts. State functions of each part. 07
OR
Q.5 (a) Explain the following terms. 03
1) Glazing 11) Loading iii) Dressing
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(b) Describe the coding of grinding wheel as per ISI. 04
(c) With neat sketch explain external Center less Grinding Machine. 07
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