THEORY OF STRUCTURES QUIZ

A simply supported uniform rectangular bar breadth b, depth d and length L carries an isolated load W at its mid-span. The same bar experiences an extension e under same tensile load. The ratio of the maximum deflection to the elongation, is

L/2d

L/d

(L/2d)²

(L/3d)²

TRUE ANSWER : ?
YOUR ANSWER : ?

P = 4π² EI/L² is the equation of Euler's crippling load if

Both the ends are hinged

Both the ends are fixed

One end is fixed and other end is free

One end is fixed and other end is hinged

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YOUR ANSWER : ?

The ratio of the maximum deflections of a simply supported beam with a central load W and of a cantilever of same length and with a load W at its free end, is

1/16

1/10

1/8

1/12

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The stiffness of the close coil helical spring is

d4N/8D3n

8D3N/d4n

d4N/4D3n

4D3N/d4n

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The ratio of the stresses produced by a suddenly applied load and by a gradually applied load on a bar, is

2

1/2

1/4

1

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The locus of the end point of the resultant of the normal and tangential components of the stress on an inclined plane, is

Straight line

Circle

Ellipse

Parabola

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YOUR ANSWER : ?

constant, depth of a cantilever of length of uniform strength loaded with Keeping breadth uniformly distributed load varies from zero at the free end and

2w w l at the fixed end

l) at the fixed end

w l) at the fixed end

3w l at the fixed end

TRUE ANSWER : ?
YOUR ANSWER : ?

Y are the bending moment, moment of inertia, radius of curvature, modulus of If M, I, R, E, F, and elasticity stress and the depth of the neutral axis at section, then

M/I = E/R = Y/F

I/M = R/E = F/Y

M/I = R/E = F/Y

M/I = E/R = F/Y

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YOUR ANSWER : ?

In plastic analysis, the shape factor for a triangular section, is

2.34

2.5

1.34

1.5

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A body is said to be in equilibrium if

None of these

It moves vertically

It moves horizontally

It rotates about its C.G.

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