# Civil Engineering - UPSC Civil Service Exam Questions

6.

Seasoning of timber is required to

 A. soften the timber B. harden the timber C. straighten the timber D. remove sap from the timber

Explanation:

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7.

Four vertical columns of the same material, height and weight have the same end condition. The buckling load will be the largest for a column having the cross-section of a/an

 A. solid square B. thin hollow circle C. solid circle D. I

Explanation:

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8.

A beam has a solid circular cross-section having diameter d. If a section of the beam is subjected to a shear force F the maximum shear stress in the cross-section is given by

 A. B. C. D.

Explanation:

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9.

A cantilever beam of span 4 m and cross-sectional are 0.3 m wide and 0.4 m deep is subjected to a concentrated load of 10 kN at the free end. Neglecting self-weight, the maximum bending stress at a section 2 m from the free end will be

 A. 20 kN/m2 B. 2500 kN/m2 C. 4000 kN/m2 D. 5000 kN/m2

Explanation:

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10.

A simply supported beam AB of span 'l' has a form cross-section throughout. It carries a central concentrated load W and another load which is uniformly distributed over the entire span, its total magnitude being W. The minimum deflection in the beam is

 A. B. C. D.