Structural Analysis
Muller Breslau’s principle for obtaining influence lines is applicable to
i) trusses
ii) statically determinate beams and frames
iii) statically indeterminate structures, the material of which is elastic and follows Hooke’s law
iv) any statically indeterminate structure
The correct answer is

(i) and (ii)
(i), (ii) and (iii)
only (i)
(i), (ii) and (iv)

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Structural Analysis
Pick up the correct statement for the web stiffeners.

For horizontal stiffeners, d is the clear distance between the horizontal stiffener and the tension flange
All of these
d is the distance between flange angles or the clear distance between flanges
Vertical stiffeners are spaced at a distance not greater than 1.5 d and not less than 0.33 d

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Structural Analysis
The effective and actual lengths of a cantilever are same if continuous at the support,

Unstrained against torsion at the support and free at the end
With partial restraint against torsion of the support and free at the end
None of these
Restrained against torsion at the support and free at the end

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