Download GTU BE/B.Tech 2018 Winter 8th Sem Old 181903 Production Technology Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VIII (OLD) EXAMINATION — WINTER 2018

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Subject Code: 181903 Date: 19/11/2018
Subject Name: Production Technology
Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Differentiate between Jigs and Fixture. Enlist different types of clamping devices. Explain any two with neat sketches. 07
(b) Derive various force equations can be derived using Merchant Circle diagram. 07

Q.2 (a) Explain 3-2-1 location principle with neat sketch. 07

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(b) Draw neat sketch of single point cutting tool showing the six major angles. Explain the need of providing these angles. 07
OR
(b) Enumerate the factors affecting tool life. Briefly explain the effect of each factor. 07

Q.3 (a) Differentiate between gear forming and gear generating methods 07
(b) Discuss the term: (i) Fool proofing (ii) Interchangeability. 07

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OR
Q.3 (a) List the various thread manufacturing processes. Explain about thread rolling process. 07
(b) Explain the principle of metal shearing. Why is clearance provided in shearing operation? 07

Q.4 (a) Differentiate between compound die, combination die and progressive die with neat diagrams. 07
(b) What are automatic transfer machines? Write principle, advantages and disadvantages of it. 07

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OR
Q.4 (a) Explain with a neat sketch the’Mechanical type of lathe tool dynamometer. 07
(b) Discuss the differences between Turret and Capstan lathes. 07

Q.5 (a) Classify the unconventional machining process and explain about electron beam machining process with neat sketch. 07
(b) Describe the principle of material removal in the Ultrasonic machining process. Also discuss how the following factors affect material removal (a) Grain size (b) Frequency (c) Amplitude 07

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OR
Q.5 (a) Explain the difference in working of Electro chemical machining & Electro chemical Grinding. State salient applications of each. 07
(b) Explain methods of temperature measurement at tool-work interface. 07

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