0800IET201 122003 Pages: 3

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Max. Marks: 100

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APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Third Semester B.Tech Degree Examination December 2020 (2019 Scheme)

Course Code: IET201
Course Name: THEORY OF MACHINES AND DESIGN

Approved Design Data hand book permitted
Assume missing data, if any suitably
PARTA
Answer all questions. Each question carries 3 marks

Derive an expression for the ratio of belt tension?
With sketch, explain the inversions of a four bar chain?
With the help of sketch, differentiate between radial follower and offset
follower?
Derive the equation for the height of a Watt governor in terms of speed?
Sketch and explain three common modes of failures of rivet?
Draw the sectional representation and symbol for the following welds? a) Fillet
weld, b) square butt weld and c) single V butt.
State and prove law of gearing?
Derive the Lewis beam strength equation?
What are the various stresses experienced by a thick vessel, when it is acted
upon by internal pressure?
What are the type of stresses experienced by a shaft under operation?

PART B

Answer any one full question from each module. Each question carries 14 marks

Module 1
A four bar mechanism has the following dimensions. AB=40mm, BC=100mm,
CD=80mm, AD= 60mm and angle DAB is 90°. The link AD is fixed. The link
AB revolves uniformly at 120 rpm, in clockwise direction. Find angular
acceleration of link BC and CD?
A shaft running at 200 rpm drives another shaft at 400 rpm, and transmits 7.5

kW through open belt. The belt is 80mm wide and 10mm thick. The centre

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Duration: 3 Hours

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