Kerala University 2005 Bachelor of Architecture STRUCTURAL MECHANICS - Question Paper

Reg. No………………………………………………. K6179
Name…………………………………………………..
COMBINED 1st AND 2nd SEMESTER B.Arch. DEGREE
exam ,MAY/JUNE 2005
Paper –STRUCTURAL MECHANICS
(2003 Scheme)
Time: 3 Hours Maximum:100 Marks
ans all ques. in part A. every ques. carry 2.5 marks.
ans 1 ques. from part B. every ques. carry 15 marks.
Part A
1. describe force and distinguish clearly ranging from resolution of forces and composition of forces.
2. State and discuss polygon legal regulations of forces.
3. describe friction, coefficient of friction, angle of friction and limiting friction.
4. describe principal axis and principal moment of inertia.
5. define the method of finding out the moment of inertia of a composite part.
6. describe modulus of rigidity as elastic constant.
7. explain the concept of strain energy.
8. describe beam. explain various support conditions of beams.
9. describe and distinguish ranging from bending moment and shear force in a beam.
10. describe factor of safety in structural design. (10×2.5=25 marks)
Part B
MODULE 1
11. The subsequent forces acts as a point 0.20 N inclined at 30 degree towards north of east, 25N towards north,30N towards North-West and inclined at 40 degree towards south of west. obtain the magnitude and direction of the resulting force.
12. A body of weight 400N is lying on a rough plane inclined at an angle of 25 degree to the horizontal. It is supported by an effort ’P’ parallel to the plane. Determine the minimum and maximum values of P for which the equilibrium can exist if the angle of friction is 20 degree. (15 marks)
MODULE 2
13. A cantilever truss is loaded as shown in figure 1. Fine out the value of W which would produce the force of magnitude 15KN in the member AB.
14. obtain the moment of inertia about the centoidal XX and YY axis of an inverted L part shown in figure 2. (1×15=15 marks)
MODULE 3
15. Asheet column, hexagonal part of sides 200mm carries an axial load of 30KN. compute the compressive stress and strain on the youngs modulus of elasticity and the material is 21×10 eight N/mm 2.
16. For the cantilever beam loaded ,calculate te shear and strain in the material at the vsupport. provide that the cantilever part is 25mm×18mm and the modulus of rigidity 0.8×10 six N/mm 2. (15 marks)
Module 4
17. For the simply supported beam loaded ,draw the bending moment and shear force diagram and mark the salient points. (15 marks)

Earning:   Approval pending.