MCQs of Plastic Design (Design of Steel Structures - 2180610)

Design of Steel Structures (2180610) MCQs

MCQs of Plastic Design

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Structures designed using elastic analysis may be ______ than those designed using plastic analysis.

(a)	Lighter
(b)	Heavier
(c)	Of same weight
(d)	Almost half times the weight

Both elastic and plastic methods neglect ________

(a)	Live load acting on structure
(b)	Dead load acting on structure
(c)	Deformations due to load
(d)	Influence of stability

What is buckling?

(a)	Structural behaviour in which a deformation develops in direction of plane perpendicular to that of load which produced it.
(b)	Structural behaviour in which a deformation does not develop in direction of plane perpendicular to that of load which produced it.
(c)	Structural behaviour in which a deformation develop in direction of plane parallel to that of load which produced it.
(d)	Structural behaviour in which a deformation develops in direction of plane along that of load which produced it.

Which of the following relation about plastic moment is correct?

(a)	$M_{p} = Z_{p} / f_{y}$
(b)	$M_{p} = Z_{p} + f_{y}$
(c)	$M_{p} = Z_{p} f_{y}$
(d)	$M_{p} = Z_{p} - f_{y}$

What is plastic moment of resistance?

(a)	Maximum moment in stress strain curve, the point where the curvature can increase indefinitely
(b)	Maximum moment in stress strain curve, the point where the curvature can decrease indefinitely
(c)	Minimum moment in stress strain curve, the point where the curvature can increase indefinitely
(d)	Minimum moment in stress strain curve, the point where the curvature can decrease indefinitely

In elastic stage, equilibrium condition is achieved when neutral axis ___________ and in fully plastic stage, it is achieved when neutral axis ___________

(a)	is above centroid of the section, divides the section into two parts of one-third area and two-third area
(b)	is below centroid of the section, divides the section into two parts of one-third area and two-third area
(c)	is above centroid of the section, divides the section into two equal areas
(d)	passes through centroid of the section, divides the section into two equal areas

Which of the following relation is correct for plastic section modulus,

Z_{p}

(a)	$Z_{p} = 2 A (y_{1} + y_{2})$
(b)	$Z_{p} = A (y_{1} + y_{2}) / 2$
(c)	$Z_{p} = A (y_{1} + y_{2}) / 4$
(d)	$Z_{p} = 4 A (y_{1} + y_{2})$

Which of the following relation is correct about shape factor, v?

(a)	$v = Z_{p} + Z_{e}$
(b)	$v = Z_{p} Z_{e}$
(c)	$v = Z_{p} / Z_{e}$
(d)	$v = Z_{e} / Z_{p}$

The shape factor does not depend on ___

(a)	Material properties
(b)	Cross sectional shape
(c)	Moment of resistance
(d)	Section modulus

10.

Match the pairs with correct shape factor: Cross section Shape factor (average or maximum) A) Circular (i) 1.8 B) Rectangular (ii) 1.14 C) wide flange I-section (about major axis) (iii) 1.7 D) Channels (about minor axis) (iv) 1.5

(a)	A-i, B-ii, C-iii, D-iv
(b)	A-iv, B-iii, C-ii, D-i
(c)	A-iii, B-iv, C-ii, D-i
(d)	A-iii, B-ii, C-iv, D-i

Showing 1 to 10 out of 40 Questions