Download GTU BE/B.Tech 2019 Summer 8th Sem Old 182503 Design Of Product And Machine Tools Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 8th Sem Old 182503 Design Of Product And Machine Tools Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VIII (OLD) EXAMINATION ? SUMMER 2019
Subject Code: 182503 Date: 13/05/2019

Subject Name:Design of Product And Machine Tools

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.

Q.1 (a) Explain various Elementary transmission methods for Transforming rotary
motion into Translatory.
07
(b) Explain various devices for Intermittent motion. 07

Q.2 (a) Explain the general requirements for Machine tool design. 07
(b) With neat sketch explain following gear box:
(1) Norton's gear (2) Feed box with gear cone & sliding key
07
OR
(b) Design hydrodynamic journal bearing for a shaft of blower for following data:
Bearing Load due to belt force: 3000N, Bearing Load due to weight of rotor:
600N, Speed of Blower: 600 rpm, diameter of shaft: 50 mm, Expected
temperature of oil:70?, ambient temperature: 30?, c/d ratio - 0.0015,
Minimum film thickness: 0.019 mm
Calculate: actual attitude, type of oil used, power loss, heat generated, actual
minimum film thickness.
07





Q.3
(a) Discuss various types of Bed structure and wall arrangements and their
applications with neat sketch.

07
(b) Explain the design procedure of Slideways for wear resistance. 07
OR
Q.3 (a) Explain various Slideways profile with neat sketch and application. 07
(b) Explain various methods to adjust the clearance in slide ways? 07

Q.4 (a) Write a note on Antifriction Guideways. Explain Open type and Close type
antifriction guideways.
07
(b) Explain: Preloading of Antifriction bearing. 07
OR
Q.4 (a) State advantage and disadvantage of Hydrodynamic and Hydrostatic bearing.
Discuss where each one is more suitable.
07
(b)
Design crane hook for lifting capacity of 12 tonnes, having triangular section. Take
permissible tensile stress as 130 N/mm2 for forged steel.
07

Q.5 (a)
Enlist and explain any seven factors to be considered for preparing product design
specification for Fully Automatic dish washer.
07
(b)
Design a self-aligning ball bearing for a radial load of 7000 N and a thrust load of 2100
N. The desired life of the bearing is 160 millions of revolutions at 300 r.p.m. Assume
uniform and steady load.
07
OR

Q.5 (a)
Discuss various factors to be considered for prepare a product design specifications.
07
(b)
Give classification of steel wire ropes. How numbers of band are determined for steel
wire ropes while designing material handling systems?
07

*************
FirstRanker.com - FirstRanker's Choice