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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- IV EXAMINATION — SUMMER 2020
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Subject Code: 3141908 Date:29/10/2020Subject Name: Manufacturing Processes
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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Q.1 (a) Explain the working and auxiliary motions of machine tools. [03]
(b) Differentiate between multispindle drilling machine and Gang drilling machine. [04]
(c) List the different methods of taper turning on lathe. Explain about taper turning attachment with neat sketch. [07]
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Q.2 (a) What is boring operation? Draw the sketch of boring tool. [03]
(b) Explain about dressing and truing of grinding wheel. [04]
(c) Explain about column & knee type milling machine. [07]
OR
(c) Explain about crank and slotted link quick return mechanism in shaper machine. [07]
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Q.3 (a) Draw a neat sketch of single point cutting tool and show various angles on sketch. [03]
(b) Determine the cutting- speed in machining a workpiece of 200 mm diameter rotating at a speed of 100 rpm. Also calculate power, if cutting force is 560 N. [04]
(c) Explain the use of catch plate and carrier in turning operation of lathe machine. Discuss the application of angle plate and face plate for machining of elbow pipe. [07]
OR
Q.3 (a) Calculate the change gears to cut a single start thread of 0.5 mm pitch on a lathe having a lead screw of 12 mm pitch. Assume a typical set of gears. [03]
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(b) Differentiate between steady rest and follower rest. [04]
(c) List the various drill operations. Explain any two drilling operations with neat sketch. [07]
Q.4 (a) Sketch the twist drill with its nomenclature. [03]
(b) Discuss the various milling operations required to manufacture a V-block with necessary sketch. [07]
OR
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Q.4 (a) What is Indexing? Write any two-engineering product application of indexing. [03]
(b) Explain how to check the parallelism between work table and spindle axis in horizontal milling machine. [04]
(c) Explain about jig boring machine with neat sketch. [07]
Q.5 (a) Explain how to cut internal keyway on slotter machine with neat sketch. [03]
(b) How grinding wheel is specified? [04]
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(c) Explain basic principle of broaching. Draw a neat sketch of internal pull type broach and show various elements on it. Write different applications of broaching. [07]
OR
Q.5 (a) Classify the metal sawing machine. [03]
(b) Draw the neat sketch of double housing planner machine. [04]
(c) Explain about horizontal spindle reciprocating table surface grinding machines with neat sketch. [07]
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This download link is referred from the post: GTU BE 2020 Summer Question Papers || Gujarat Technological University
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