1. Choose the most appropriate answer from the options given in questions to below: 2

(ii) 3

(iii) 5
6
A structure should be strong

(ii) ductile

(iii) unstable
Both and For stability, centre of gravity of a structure should be as low as possible

(ii) as high as possible

(iii) near to its outer edge
outside its plan area The moment of inertia of a rectangular area about an axis passing through its centre of gravity is given as bd^3/3

(ii) bd^3/12

(iii) bd^3/36
bd^4/584 In pin jointed trusses, members are subjected to axial forces

(ii) moments

(iii) axial forces and shear forces
moments and shear forces Which of the following is a ductile material Stone

(ii) Brick

(iii) Steel

(iv) Glass Euler's theory is applicable to short columns

(ii) long columns

(iii) tension members
Both and

2. What do you understand by a Funicular polygon? Explain briefly.
Write steps of the graphical method of determining resultant of a given system of coplanar forces.

3. Draw Shear force and Bending moment diagrams for the beam shown in Figure <img src='./qimages/8430-3a.jpg'> Draw neat line sketches of any two types of trusses.

4. Write assumptions taken in the theory of pure bending.
Differentiate between failures of short and long columns.

5.(a) Derive expression for calculating Euler's load for standard case of a column.
Discuss a way of improving the capacity of a long column.

6. Draw a neat sketch of stress-strain curve of mild steel. Show various prominent points on it.
Explain the difference between the terms 'Stress' and 'Strength' for a material.

7. Write short notes on any two of the following:
Centre of Gravity Concept of Stability for a Column Moment of Inertia