# Theory of Structures

• ## A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm², the bending strain energy stored in the bar, is_____.

• A. 411 N mm
• B. 511 N mm
• C. 611 N mm
• D. 711 N mm
Explanation:

No answer description available for this question.

• ## The strain energy stored in a spring when subjected to greatest load without being permanently distorted, is called_____.

• A. Stiffness
• B. Proof resilience
• C. Proof stress
Explanation:

No answer description available for this question.

• ## The locus of reaction of a two hinged semi-circular arch, is_____.

• A. Straight line
• B. Parabola
• C. Circle
• D. Hyperbola
Explanation:

No answer description available for this question.

• ## For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is_____.

• A. 0.303
• B. 0.404
• C. 0.505
• D. 0.707
Explanation:

No answer description available for this question.

• ## If a three hinged parabolic arch, (span l, rise h) is carrying a uniformly distributed load w/unit length over the entire span,_____.

• A. Horizontal thrust is wl2/8h
• B. S.F. will be zero throughout
• C. B.M. will be zero throughout
• D. All the above
Explanation:

No answer description available for this question.

• ## A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is_____.

• A. 4WD²n/d4N
• B. 4W²Dn/d4N
• C. 4W²D3n/d4N
• D. 4W²D3n²/d4N
Explanation:

No answer description available for this question.

• ## A square column carries a load P at the centroid of one of the quarters of the square. If a is the side of the main square, the combined bending stress will be_____.

• A. p/a²
• B. 2p/a²
• C. 3p/a²
• D. 4p/a²
Explanation:

No answer description available for this question.

• ## A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm² is:

• A. 4.0 mm
• B. 4.5 mm
• C. 5.0 mm
• D. 5.5 mm
Explanation:

No answer description available for this question.

• ## The area of the core of a column of cross sectional area A, is_____.

• A. (1/3) A
• B. (1/6) A
• C. (1/12) A
• D. (1/18) A
Explanation:

No answer description available for this question.

• ## H V are the algebraic sums of the forces resolved horizontally and vertically respectively, M is the algebraic sum of the moments of forces about any point, for the equilibrium of the body acted upon_____.

• A. H = 0
• B. V = 0
• C. M = 0
• D. All the above