MCQs of Direct and Bending stresses + Column & Struts (Structural Analysis - I - 3140603)

Structural Analysis - I (3140603) MCQs

MCQs of Direct and Bending stresses + Column & Struts

Showing 21 to 30 out of 61 Questions

21.

The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides and 300 cm length, is

(a)	200
(b)	240
(c)	360
(d)	416

22.

The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is

(a)	one-half of the radius
(b)	one-third of the radius
(c)	one-quarter of the radius
(d)	one-fifth of the radius

23.

The radius of gyration of a squar section is not proportional to

(a)	square root of the moment of inertia
(b)	square root of the inverse of the area
(c)	square root of the moment of inertia divided by area of the section
(d)	side of squar

24.

The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 kN/cm2, the permissible maximum crippling load will be

(a)	1.288 kN
(b)	12.88 kN
(c)	128.8 kN
(d)	288.0 kN

25.

Struts are load carrying members of a frame structure which are subjected to

(a)	axial tension loads
(b)	axial compressive loads
(c)	torsional loads
(d)	transverse loads

26.

The greatest eccentricity which a load W can have without producing tension on the cross-section of a short column of external diameter D and internal diameter d, is

(a)	$\frac{4 W}{π (D^{2} - d^{2})}$
(b)	$\frac{π (D^{4} - d^{4})}{32 D}$
(c)	$\frac{(D^{2} + d^{2})}{8 D}$
(d)	$\frac{(D^{2} - d^{2})}{8 D}$

27.

Euler's formula states that the buckling load P for a column of length l, both ends hinged and whose least moment of inertia and modulus of elasticity of the material of the column are I and E respectively, is given by the relation

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

28.

Rankine-Golden formula accounts for direct as well as buckling stress and is applicable to

(a)	very long columns
(b)	long columns
(c)	short columns
(d)	intermediate columns

29.

Maximum deflection of a cantilever due to pure bending moment M at its free end, is

(a)	$\frac{M L^{2}}{3 E I}$
(b)	$\frac{M L^{2}}{4 E I}$
(c)	$\frac{M L^{2}}{6 E I}$
(d)	$\frac{M L^{2}}{2 E I}$

30.

The ratio of the effective length of a column and minimum radius of gyration of its cross-sectional area, is known

(a)	buckling factor
(b)	slenderness ratio
(c)	crippling factor
(d)	none of these

Showing 21 to 30 out of 61 Questions