Following are the questions asked as per syllabus of the subject CE-211, Civil Engineering, HPTU-Shimla for courses for the internal session exams in the semester August - December 2013 at Jawahar Lal Engineering College of Engineering - Himachal Pradesh
3rd Sem
Civil Engineering Date:30-09-2013
Time: 02 Hrs.
Course Code: CE-211
Max Marks:
50
Course Title: Strength of Materials
Q.1 Explain the following:
(1) Body forces (2)
Contact forces (3) Stress tensor (4) Principal stresses (5) Stress invariants
-(5*4)Marks.
Q.2 Briefly
explain the rectangular, cylindrical and
polar co-ordinate system for stresses. – (5) Marks.
Q.3 An element in a stressed material has tensile stress of
500 MN/m2 and a compressive stress of 350 MN/m2 acting on two mutually
perpendicular planes and equal shear stress of 100 MN/m2 on these planes. Find
principal stresses, position of the principal planes and maximum shear stress,
using:
(1) Transformation equations. – (10 Marks)
(2) Mohr’s circle method.
---(10 Marks).
Q.4 Write short notes on: (1) Differential equations static
equilibrium (2) Octahedral stresses. –(5+5)Marks
3rd Sem
Civil Engineering Date 01-11-2013
Time: 02 Hrs.
Course Code: CE-211
Max Marks:
50
Course Title: Strength of Materials
Q.1 Write short notes
(1) Transformation equations for strain
(2) Maximum Principal stress theory
(3) Maximum Strain Energy Theory
(4) Secant Formula
(5) Castigliano’s theorem
-(5*4)Marks.
Q.2
(1) A cast iron hollow column, of 30cm external
diameter and 23cm internal diameter is used as a column 4m long, with both ends
hinged. Determine the Rankine’s safe load with a factor of safety of 4. Take
compressive strength = 567MN/m2 and a=
1/1600 -(15 Marks)
(2) Using
Castigliano’s theorem, determine the deflection of the free end of the
cantilever beam shown in figure. Take EI = 4.9 MN.m2.
---(15 Marks).
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