Important Practice Question Available for Exam. This Questions are based on Repeated Topics and Frequently Ones with the Help of this you can Score Good Marks in Exam and you will Pass in Exam.
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1. Attempt any FIVE of the
following: 10
a) Define factor of safety &
its Importance for ductile and brittle material. *
b) List four properties desirable
for spring material.*
c) List four applications of
knuckle joint. *
d) Name four types of keys.*
e) List any four applications of
power screw.
f) Classify springs.
g) Give four applications of gear
drive.
2. Attempt any THREE of the
following: 12
a) Write the meaning of following
material designation.
(i)
40C8
(ii)
SG 700/2
(iii)
Fe E200
(iv)
X10Cr18Ni9
b) Explain failure of cotter in
bending with suitable sketch and strength equation.*
c) Write Lewis equation for
strength of gear tooth. Give meaning of each term.
d) Draw freehand sketches of
thread profiles (any four) with full details.
e) Differentiate between Knuckle
joint and Cotter joint. (any four points of difference)
f) State the effect of keyway on
the strength of the shaft
g) State the strength equations of
double parallel fillet weld and single transverse fillet weld
with neat sketches
3. Attempt any THREE of the
following: 12
a) Explain maximum principal
stress theory and maximum shear stress theory with their uses.
b) Write general design procedure
of the bell crank lever. (any four steps) *
c) State any four applications of
spring.
d) Define stress concentration.
Explain any four methods to reduce it with neat sketch.
e) Define the following terms with
respect to spring: *
(i)
Free length
(ii)
Solid length
(iii)
Spring index
(iv)
Spring rate
f) Compare welded joints with
screwed joints.
g) List the factors to be
considered while selecting the material for design of Machine element
h) Write strength equations for
Design of Screw spindle of toggle Jack
Part-2
a) Explain importance of shape and
size in aesthetic design. *
b) State the steps involved in
selection of proper ball bearing from manufacturer’s catalogue. *
Q4,
Q5, Q6 is Based on Numericals
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