Q. The total strain energy of a beam of length L, having moment of inertia of its section I, when subjected to a bending moment M, is

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Q. The force in BF of the truss shown in given figure, is

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Q. The radius of gyration of a section of area A and least moment of inertia I about the centroidal axis, is

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Q. A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be

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Q. Pick up the correct statement from the following:

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Q. A material may fail if

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Q. The stiffness of the close coil helical spring is

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Q. If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good

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Q. The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is

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Q. For calculating the allowable stress of long columns. The following empirical formula , is known as

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Q. Two bars, one of steel and the other of copper having areas of cross-sections As and Ac, coefficient of expansion αs and αc and Young's Modulii Es and Es are rigidly connected together at the ends and subjected to temperature change of t°. If the length of the bars initially is L, the final extension δ of the two bars at t° temperature is given by

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Q. The force in AD of the truss shown in given figure, is

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Q. Pick up the correct statement from the following:

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Q. The general expression for the B.M. of a beam of length l is the beam carries

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Q. The maximum B.M. due to an isolated load in a three hinged parabolic arch, (span l, rise h) having one of its hinges at the crown, occurs on either side of the crown at a distance

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Q. The vertical reaction for the arch is

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Q. A bar of square section of area a² is held such that its one of its diameters is vertical. The maximum shear stress will develop at a depth h where h is

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Q. The horizontal deflection of a parabolic curved beam of span 10 m and rise 3 m when loaded with a uniformly distributed load l t per horizontal length, is (where Ic is the M.I. at the crown, which varies as the slope of the arch).

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Q. For permissible shear stress fs, the torque transmitted by a thin tube of mean diameter D and wall thickness t, is

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Q. The following is the equation for Euler's crippling load if

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