Theory of Structures
An isolated load W is acting at a distance a from the left hand support, of a three hinged arch of span 2l and rise h hinged at the crown, the horizontal reaction at the support, is

Wa/2h
2h/Wa
2W/ha
Wa/h

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Theory of Structures
Slenderness ratio of a long column, is

Length of column divided by least radius of gyration
Area of cross-section divided by least radius of gyration
Radius of gyration divided by area of cross-section
Area of cross-section divided by radius of gyration

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

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