Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 8th Sem New 2182503 Design Of Product And Machine Tools Previous Question Paper
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2182503 Date: 21/11/2019
Subject Name: Design of Product and Machine Tools
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of Design Data book is permitted
MARKS
Q.1 (a)
Explain the classification of the speed box.
03
(b)
Differentiate between hydraulic transmission and mechanical
transmission.
04
(c)
With neat sketch explain following gear box: (1) Feed box with tumbler
gear (2) Feed box with change gear.
07
Q.2 (a)
Explain the materials of spindles.
03
(b)
Describe the functions and requirements of spindle unit.
04
(c)
List causes of failure of antifriction bearings. Give comparison between
journal and antifriction bearing.
07
OR
(c)
Design hydrodynamic journal bearing for lathe spindle from following
data: Load on spindle: 20 kN, Speed of Spindle: 2000 rpm, diameter of
spindle at journal: 100 mm, l/d = 2, Clearance ratio: 2?10
-3
, viscosity of
oil at working temperature = 35 ?10
-3
kg/m.s Calculate: bearing
characteristic number.
07
Q.3 (a)
What is the purpose of guide ways ?
03
(b)
Write a short note on Antifriction Guide ways.
04
(c)
Give requirement of Protecting devices for slide ways and explain various
types of protecting devices with neat sketch.
07
OR
Q.3 (a)
Explain the general requirements of column structure.
03
(b)
Discuss various types of Bed structure and wall arrangements and their
applications with neat sketch.
04
(c)
Explain the shapes of slide ways.
07
Q.4 (a)
State the important properties of material used for hook.
03
(b)
Discuss design procedure of wire rope sheave.
04
(c)
Design the crane hook for the lifting capacity of 10 tonnes, having
triangular section. Take permissible tensile stress 120 N/mm
2
for forged
steel.
07
OR
Q.4 (a)
How does the design of sheave and pulley differ?
03
(b)
Give classification of lay of steel wire ropes.
04
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2182503 Date: 21/11/2019
Subject Name: Design of Product and Machine Tools
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of Design Data book is permitted
MARKS
Q.1 (a)
Explain the classification of the speed box.
03
(b)
Differentiate between hydraulic transmission and mechanical
transmission.
04
(c)
With neat sketch explain following gear box: (1) Feed box with tumbler
gear (2) Feed box with change gear.
07
Q.2 (a)
Explain the materials of spindles.
03
(b)
Describe the functions and requirements of spindle unit.
04
(c)
List causes of failure of antifriction bearings. Give comparison between
journal and antifriction bearing.
07
OR
(c)
Design hydrodynamic journal bearing for lathe spindle from following
data: Load on spindle: 20 kN, Speed of Spindle: 2000 rpm, diameter of
spindle at journal: 100 mm, l/d = 2, Clearance ratio: 2?10
-3
, viscosity of
oil at working temperature = 35 ?10
-3
kg/m.s Calculate: bearing
characteristic number.
07
Q.3 (a)
What is the purpose of guide ways ?
03
(b)
Write a short note on Antifriction Guide ways.
04
(c)
Give requirement of Protecting devices for slide ways and explain various
types of protecting devices with neat sketch.
07
OR
Q.3 (a)
Explain the general requirements of column structure.
03
(b)
Discuss various types of Bed structure and wall arrangements and their
applications with neat sketch.
04
(c)
Explain the shapes of slide ways.
07
Q.4 (a)
State the important properties of material used for hook.
03
(b)
Discuss design procedure of wire rope sheave.
04
(c)
Design the crane hook for the lifting capacity of 10 tonnes, having
triangular section. Take permissible tensile stress 120 N/mm
2
for forged
steel.
07
OR
Q.4 (a)
How does the design of sheave and pulley differ?
03
(b)
Give classification of lay of steel wire ropes.
04
(c)
Design the crane hook for the lifting capacity of 12 tonnes, having
triangular section. Take permissible tensile stress 130 N/mm
2
for forged
steel.
07
Q.5 (a)
Discuss steps involved in product design process.
03
(b)
What are the challenges of product development?
04
(c)
You are selected as Product design and development engineer in
SAMSUNG washing machine manufacturing company .To develop a new
model of washing machine is a work assign to you. How will you attempt
this task? While developing the model which parameters you will consider.
07
OR
Q.5 (a)
Define the term ?Product? and explain the classification of product giving
suitable examples.
03
(b)
How the customer?s needs are focused during product development stages.
04
(c)
You are appointed as a senior engineer (Product design) in a TATA's
Voltas Air condition manufacturing company. It is required to develop a
new improved model of AC. How will you carry out the work assign to
you?
07
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This post was last modified on 20 February 2020