Theory of Structures
If a three hinged parabolic arch, (span l, rise h) is carrying a uniformly distributed load w/unit length over the entire span,

Horizontal thrust is wl2/8h
B.M. will be zero throughout
S.F. will be zero throughout
All of these

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Theory of Structures
The horizontal thrust on the ends of a two hinged semicircular arch of radius ‘R’ carrying

A uniformly distributed load ? per unit run over its right half span, is ? ?R/?
All of these
A uniformly distributed load ? per unit run over its entire span is 4/3 ?R/?
A distributed load varying from zero at the left end to ? per unit horizontal run at the right end, is ? ?R/?

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Theory of Structures
A compound bar consists of two bars of equal length. Steel bar cross -section is 3500 mm²and that of brass bar is 3000 mm². These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm² and Eb = 0.1 MN/mm², the stresses developed are:

b = 5 N/mm² s = 10 N/mm²
b = 8 N/mm² s = 16 N/mm²
b = 10 N/mm² s = 20 N/mm 2
b = 6 N/mm² s = 12 N/mm²

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