Previous 4 years Anna University Questions (Important 2 marks) is given. Make this for your reference and try to get maximum marks (Part A) in university examinations.
Question
Paper code : 71856
B.E/
B.Tech Degree Examination, April/May 2015
Fifth
Semester
Mechanical
Engineering
ME2303/ME53/ME504
-Design of Machine Elements/Machine Design
Regulation
2008/2010
(Approved
data book as permitted)
PART-A
(10*2=20 marks)
Answer
ALL questions
1. Define
limits and fits.
2. What
is an adaptive design?
3. What
is the difference between spindle and axle?
4. How
the length and diameter of a shaft affects its critical speed?
6. What
is bearing failure in rivets?
7. What is the effect of change in spring
index on Wahl’s factor and on the stress induced in a helical compression
spring?
8. State the purpose of using concentric
springs.
9. What is sommerfield number? State its
importance in the design of journal bearing?
10. What is self aligning ball bearing? State
its unique feature.
Question
Paper code : 91654
B.E/
B.Tech Degree Examination, November/December 2014
Fifth
Semester
Mechanical
Engineering
ME2303/ME53/ME504
-Design of Machine Elements/Machine Design
Regulation
2008/2010
(Approved
data book as permitted)
PART-A
(10*2=20 marks)
Answer
ALL questions
1. Determine the force required to punch a
hole of 20mm diameter in a 5mm thick plate with ultimate shear strength of 250
Mpa?
2. List at least two methods to improve the
fatigue strength.
3. Shaft
A has diameter which is double the diameter of shaft B of same material and
transmit 80 kW if both shafts rotate at same speed, what is the power
transmitted by shaft B.
4. Discuss forces on keys.
5. Why are ACME treads preferred over square
thread for power screw?
6. What are disadvantages of welding?
7. Define (a) Coefficient of fluctuation of
speed (b) Coefficient of fluctuation of energy.
8. Distinguish between close coiled and open
coiled springs.
9. In hydrodynamic bearing, what are factors
which influence the formation of wedge fluid film?
10. Define static capacity of bearing.
Question
Paper code: 51642
B.E/
B.Tech Degree Examination, May/June 2014
Fifth
Semester
Mechanical
Engineering
ME2303/ME53/ME504
-Design of Machine Elements/Machine Design
Regulation
2008/2010
(Approved
design data book as permitted)
PART-A
(10*2=20 marks)
Answer
ALL questions
1. Differentiate
between hardness and toughness of materials.
2. Define
stress concentration factor.
3. What
are the various stresses induced in the shafts?
4. Name
any two of rigid coupling.
5. Differentiate with a neat sketch the
fillet welds subjected to parallel loading and transverse loading.
6. What
are different types of cotter joints?
7. What
is meant by semi elliptical leaf spring?
8. Define
the term fluctuation of energy.
9. Classify
the types of bearings.
10. What is
meant by journal bearing?
Question
Paper code: 31569
B.E/
B.Tech Degree Examination, November/ December 2013
Fifth
Semester
Mechanical
Engineering
ME2303/ME53/ME504
-Design of Machine Elements/Machine Design
Regulation
2008/2010
(Approved
design data book as permitted)
PART-A
(10*2=20 marks)
Answer
ALL questions
1. Describe the material properties of
hardness, stiffness and resilience.
2. What are the methods used to improve
fatigue strength?
3. A
shaft of 70mm long is subjected to shear stress of 40 Mpa and has an angle of
twist equal to 0.017 radian. Determine the diameter of the shaft. Take G=80 Gpa
4. What
is the main use of woodruff keys?
5. State
the two types of eccentric welded connections.
6. What
is a gib? Why is it provided in a cotter joint?
7. A
helical spring of rate 12 N/mm is mounted on the top of another spring of rate
8 N/mm. Find the force required to give a deflection of 50mm.
8. What
is the purpose of flywheel that is used in an IC engine?
9. What
is meant by life of anti-friction bearings?
10. What
are the essential requirements in an end face seal?
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