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 31 to 40 out of 59 Questions

31.

A cantilever carries is uniformly distributed load W over its whole length and a force W acts at its free end upward. The net deflection of the free end will be

(a)	zero
(b)	$\frac{5}{24} \frac{W L^{3}}{E I}$ upward
(c)	$\frac{5}{24} \frac{W L^{3}}{E I}$ downward
(d)	none of these

32.

If the width b and depth d of a beam simply supported with a central load are interchanged, the deflection at the centre of the beam will be changed in the ratio of

(a)	$b / d$
(b)	$d / b$
(c)	${(d / b)}^{2}$
(d)	${(b / d)}^{2}$

33.

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)	2 times
(b)	4 times
(c)	8 times
(d)	1/2 times

34.

The maximum deflection of a simply supported beam of length L with a central load W, is

(a)	$\frac{W L^{2}}{48 E I}$
(b)	$\frac{W^{2} L}{24 E I}$
(c)	$\frac{W L^{3}}{48 E I}$
(d)	$\frac{W L^{2}}{8 E I}$

35.

The ratio of the maximum deflection of a cantilever beam with an isolated load at its free end and with a uniformly distributed load over its entire length, is

(a)	1
(b)	24/15
(c)	3/8
(d)	8/3

36.

If the length of a cantilever carrying an isolated load at its free end is doubled, the deflection of the free end will increase by

(a)	8
(b)	1/8
(c)	1/3
(d)	2

37.

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

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

38.

The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length L and of flexural rigidly EI, is

(a)	$\frac{w L^{3}}{3 E I}$
(b)	$\frac{w L^{4}}{3 E I}$
(c)	$\frac{w L^{4}}{8 E I}$
(d)	$\frac{w L^{4}}{12 E I}$

39.

The general expression for the B.M. of a beam of length l is the beam carries

M_{x} = \frac{w L x}{2} - \frac{w x^{2}}{2}

(a)	a uniformly distributed load w/unit length
(b)	a load varying linearly from zero at one end to w at the other end
(c)	an isolated load at mid span
(d)	none of these

40.

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

(a)	1/10
(b)	1/12
(c)	1/14
(d)	1/16

Showing 31 to 40 out of 59 Questions