Strength of Materials MCQs Set-3

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1. Point of contraflexure in a cantilever of span l, carrying a uniform distributed load, w per metre occurs at
2. The principal stresses σ1, σ2 and σ3 at a point respectively are 80 MPa, 30 MPa and -40 MPa. The maximum shear stress is
3. If load at the free end of the cantilever beam is gradually increased, failure will occur
4. Strength of the beam depends on
5. The most economical section of the shaft subjected to torsion is
6. If the bending moment is consistent there will be no______________ stresses
7. In a cantilever, maximum deflection occurs, where
8. A steel beam of length 30 m is fixed between two supports at 8°C with no stress. Find the expansion allowances given if the stress in the bar is to be zero when temperature is raised to 50°C ( α= 12 ×10^-6 per °C, E = 2× 10^5 N/mm^2)
9. The bending moment for a certain portion of the beam is constant. For that section, shear force would be
10. A long column has maximum crippling load when its

 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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