Theory of structures questions with answers
80 multiple-choice questions. Open any question for its answer and explanation.
- Shear strain energy theory for the failure of a material at elastic limit, is due to
- The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is
- A simply supported rolled steel joist 8 m long carries a uniformly distributed load over it span so that the maximum bending stress is 75 N/mm2. If the slope at the ends is 0.005 radian and the value of E = 0.2 × 106 N/mm2, the depth of the joist, is
- A compound truss may be formed by connecting two simple rigid frames, by
- If a three hinged parabolic arch, (span $$l$$, rise h) is carrying a uniformly distributed load w/unit length over the entire span,
- Keeping breadth constant, depth of a cantilever of length $$l$$ of uniform strength loaded with uniformly distributed load w varies from zero at the free end and
- A cantilever of length 2 cm and depth 10 cm tapers in plan from a width 24 cm to zero at its free end. If the modulus of elasticity of the material is 0.2 × 106 N/mm2, the deflection of the free end, is
- In the truss, the force in the member AC is
- If a concrete column 200 × 200 mm in cross-section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15 Ec
- Slenderness ratio of a long column, is
- A truss containing j joints and m members, will be a simple truss if
- For beams breadth is constant,
- Flat spiral springs
- In case of principal axes of a section
- A close coil helical spring when subjected to a moment M having its axis along the axis of the helix
- The forces in the members of simple trusses, may be analysed by
- Maximum shear stress theory for the failure of a material at the elastic limit, is known
- Maximum principal stress theory for the failure of a material at elastic point, is known
- The locus of reaction of a two hinged semi-circular arch, is
- The ratio of maximum shear stress to average shear stress of a circular beam, is
- $${\text{P}} = \frac{{4{\pi ^2}{\text{E}}I}}{{{{\text{L}}^2}}}$$ is the equation of Euler's crippling load if
- The shape factor of standard rolled beam section varies from
- In plastic analysis, the shape factor for a circular section, is
- The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span; flexural rigidity being E$$I$$, is
- For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is