theory of structures MCQs – Page 9

Practise focused theory of structures questions with marked answers for exam preparation and subject revision.

theory of structures Mcqs
161. A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be________________?
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A. 3-Feb

B. 8-May

C. 8/5

D. 2-Mar

162. The force in EC of the truss shown in the given figure, is__________________?
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A. 4t tension

B. Zero

C. 5t compression

D. 5t tension

163. In a shaft, the shear stress is not directly proportional to_________________?
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A. Angle of twist

B. Length of the shaft

C. Radius of the shaft

D. Modulus of rigidity

164. The ratio of maximum shear stress to average shear stress of a circular beam, is________________?
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A. 4-Mar

B. 3-Feb

C. 4/3

D. 2-Mar

165. The forces acting on the bar as shown in the given figure introduce________________?
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A. None of these

B. Compressive stress

C. Tensile stress

D. Shear stress
166. A material may fail if______________?
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A. /2

B. Maximum strain exceeds /E

C. 0

D. Maximum shear stress exceeds

E. All the above
167. A bar L metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is_________________?
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A. WL/2AE

B. WL/AE

C. WL/AE

D. WL/2AE
168. A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100C. If steel = 0.000012/C, Esteel = 0.2 MN/mm2, the tensile force developed at a temperature of 50C, is_________________?
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A. 80 N/mm2

B. 150 N/mm2

C. 120 N/mm2

D. 100 N/mm 2