Reactions at the supports of a structure can be determined by equating the algebraic sum of
Options
A. horizontal forces to zero
B. vertical forces to zero
C. moment about any point to zero
D. all the above.
Correct Answer
all the above.
Strength of Materials problems
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1. The ratio of the flexural strengths of two square beams one placed with its two sides horizontal and the other placed with one diagonal vertical, diagonal, is
3. A closely coiled helical spring of radius R, contains n turns and is subjected to an axial load W. If the radius of the coil wire is r and modulus of rigidity of the coil material is C, the deflection of the coil is
5. A three hinged arch is loaded with an isolated load 1000 kg at a horizontal distance of 2.5 m from the crown, 1 m above the level of hinges at the supports 10 metres apart. The horizontal thrust is
