MCQs of Strain energy & Displacement of Statically Determinate structures (Structural Analysis - I - 3140603)

Structural Analysis - I (3140603) MCQs

MCQs of Strain energy & Displacement of Statically Determinate structures

Showing 21 to 30 out of 59 Questions

21.

Simple bending equation is

(a)	$\frac{M}{I} = \frac{R}{E} = \frac{σ}{y}$
(b)	$\frac{I}{M} = \frac{E}{R} = \frac{y}{σ}$
(c)	$\frac{M}{I} = \frac{E}{R} = \frac{σ}{y}$
(d)	$\frac{M}{I} = \frac{R}{E} = \frac{y}{σ}$

22.

The assumption in the theory of bending of beams, is :

(a)	material is homogeneous & isotropic
(b)	Young's modulus is same in tension as well as in compression
(c)	each layer is independent to expand or to contract
(d)	all the above

23.

The deflection due to couple M at the free end of a cantilever length L is

(a)	$\frac{M L}{E I}$
(b)	$\frac{2 M L}{E I}$
(c)	$\frac{M L^{2}}{2 E I}$
(d)	$\frac{M^{2} L}{2 E I}$

24.

The ratio of the maximum deflections of a beam simply supported at its ends with an isolated central load and that of with a uniformly distributed load over its entire length, is

(a)	$1$
(b)	$\frac{15}{24}$
(c)	$\frac{24}{15}$
(d)	$\frac{2}{3}$

25.

If the width of a simply supported beam carrying an isolated load at its centre is doubled, the deflection of the beam at the centre is changed by

(a)	1/2
(b)	1/8
(c)	2
(d)	8

26.

For a simply supported beam of length L, the bending moment M is described as

M = a (x - \frac{x^{3}}{L^{2}})

0 \leq x < L

where a is a constant. The shear force will be zero at

(a)	the support
(b)	$x = \frac{L}{2}$
(c)	$x = \frac{L}{\sqrt{3}}$
(d)	$x = \frac{L}{3}$

27.

The deflection of any rectangular beam simply supported, is

(a)	directly proportional to its weight
(b)	inversely proportional to its width
(c)	inversely proportional to the cube of its depth
(d)	directly proportional to the cube of its length

28.

A cantilever beam rectangular in cross-section is subjected to an isolated load at its free end. If the width of the beam is doubled, the deflection of the free end will be changed in the ratio of

(a)	8
(b)	1/8
(c)	1/2
(d)	2

29.

For structural analysis of forces, the method refers to

(a)	moment-area-theorem
(b)	three-moment equation
(c)	Maxwell's reciprocal theorem
(d)	none of these

30.

If a constant section beam is subjected to a uniform bending moment throughout, its length bends to

(a)	a circular arc
(b)	a parabolic arc
(c)	a catenary
(d)	none of these

Showing 21 to 30 out of 59 Questions