Download GTU BE/B.Tech 2018 Winter 7th Sem New 2173408 Design Of Machine Tools Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 7th Sem New 2173408 Design Of Machine Tools Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2173408 Date: 19/11/2018

Subject Name: Design of 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.

MARKS

Q.1 (a) Explain the hydraulic transmission 03
(b) Explain the mechanical transmission 04
(c) Explain the classification of speed boxes. 07

Q.2 (a)
Explain the classify the speed box
03
(b) Explain the working motions of a machine tool 04
(c) Explain the auxiliary motion in machine 07
OR
(c)
Explain the design of speed box
07
Q.3 (a)
Explain the aim of speed feed regulation
03
(b)
Explain the functions of machine tool structures and their requirements
04
(c)
Explain the design of feed box
07
OR
Q.3 (a)
Design of spindle for deflection of spindle axis due to bending
03
(b)
Explain the general design procedure of column structure.
04
(c)
Explain the design criteria for machine tool structures
07
Q.4 (a)
Describe the functions of spindle unit
03
(b)
Explain the shapes of slid ways
04
(c)
Explain the factors affecting stiffness of machine tool structure and
methods of improving it.
07
OR
Q.4 (a)
Describe the requirements of spindle unit
03
(b)
Explain the factors affecting on design of sliding-friction power screws.
04
(c)
Explain the rail travelling components
07
Q.5 (a)
Explain the hoisting components
03
(b)
Explain the application of slide way profiles and their combinations
04
(c)
Explain the static stiffness
07
OR

Q.5 (a)
Explain the dynamics stiffness
03
(b)
Explain materials of machine tool structures for bar subjected to tension
only
04
(c)
Explain different materials used for designing the hoist.
07

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