B B7068

Total Pages: 2
Reg No.: Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
THIRD SEMESTER B.TECH DEGREE EXAMINATION, DECEMBER 2017

Course Code: CE201
Course Name: MECHANICS OF SOLIDS (CE)

Max. Marks: 100 Duration: 3 Hours
PART A
Answer any two full questions, each carries 15 marks. Marks
1 2) Define stress and strain. (4) b) What are the fundamental types of stresses? Give
one example for each type. (4)
c) State and explain Hooke’s Law. (7)
2 9) Prove that the maximum value Poisson’s ratio can have is 5 (5)

0) Acylindrical bar with two sections of lengths 50cm and 25cm, and diameters (10) 20mm
and 15mm respectively, is subjected to an axial pull such that the maximum stress is
1500/0۷/2. Calculate the strain energy stored in bar. E= 200 വന്‌.

3 a) Find an expression for the elongation of a prismatic bar due to self-weight. (5)

b) A mild steel rod 20mm diameter and 300mm long is enclosed centrally inside a
(10)

hollow copper tube of external diameter 30mm and internal diameter 25mm. The
ends of the tube and rod are brazed together, and the composite bar is subjected to
an axial pull of SON. If E for steel and copper are 200 GN/m? and 100 GN/m?
respectively, find the stresses developed in the rod and the tube. Also, find the
change in length.
PART 8
Answer any two full questions, each carries 15 marks.
4 a) Name and explain the various types of beam supports, indicating the reaction (4) components
diagrammatically.
b) Derive a relationship between bending moment and shear force. (5)
c) Draw the shear force and bending moment diagrams for a cantilever of span 3m,
(6) with a UDL of 10kKN/m on the entire span, and a point load of 100KN at the free
end.
5 9) Draw the shear force and bending moment diagrams for a simply supported (7) beam of span

4m, with a UDL of 1011/11 on the left half of its span.

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