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 41 to 50 out of 59 Questions

41.

A cantilever of length 2 cm and depth 10 cm tapers in plan from a width 24 cm to zero at its free end. If the modulus of elasticity of the material is 200000 N/mm2, the deflection of the free end, is

(a)	2 mm
(b)	3 mm
(c)	4 mm
(d)	5 mm

42.

A cantilever of length L is subjected to a bending moment M at its free end. If EI is the flexural rigidity of the section, the deflection of the free end, is

(a)	$\frac{M L}{E I}$
(b)	$\frac{M L}{2 E I}$
(c)	$\frac{M L^{2}}{2 E I}$
(d)	$\frac{M L^{2}}{3 E I}$

43.

The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is

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

44.

A simply supported beam A carries a point load at its midspan. An other identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be

(a)	2/3
(b)	3/2
(c)	5/8
(d)	8/5

45.

The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span ; flexural rigidity being EI, is

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

46.

The slope of bending moment diagram represents,

(a)	Maximum bending moment
(b)	Shear force
(c)	Maximum Shear force
(d)	Bending moment

47.

A plane section remains plane after bending indicatesd that

(a)	Axial deformation are neglected
(b)	Axial deformation are accounted
(c)	Shear deformation are neglected
(d)	Shear deformation are account

48.

A cantilever beam carrying point moment at free end

(a)	Can fail shear stress at support
(b)	Cannot fail in shear stress anywhere in the beam
(c)	Cannot fail in bending stress at support
(d)	Cannot fail in bending stress anywhere in the beam

49.

Term

E I \frac{d^{2} y}{d x^{2}}

represents

(a)	Bending moment
(b)	Shear force
(c)	Slope of bending moment diagram
(d)	Maxima/minima condition for deflection

50.

An increase in load at the free end of a cantilever is likely to cause failure

(a)	At free end
(b)	At the mid of its length
(c)	At the fixed support end
(d)	Anywhere on the beam

Showing 41 to 50 out of 59 Questions