Strength of Material Question and Answer for Competitive Exams
21. The property of a material by virtue of which a body returns to its original shape after removal of the load is called
(A) Plasticity
(B) Elasticity
(C) Ductility
(D) Malleability
22. The value of Poisson’s ratio for east iron is
(A) 1 to 0.2
(B) 0.23 to 0.27
(C) 0.25 to 0.33
(D) 0.4 to 0.6
23. The property of a material which allows it to be drawn into a smaller section is
(A) Plasticity
(B) Ductility
(C) Elasticity
(D) Malleability
24. Hoop stress in thin walled cylinder is
(A) Compressive stress
(B) radial stress
(C) Circumferential tensile stress
(D) Shear stress
25. During impact loading the stress developed as compared to gradually applied load is
(A) 5 times
(B) 2 times
(C) 2.5 times
(D) 3 times
26. The stress at any point in the thick cylinder are
(A) Tensile
(B) Compressive
(C) Principal
(D) Compound
27. Deflection in a beam is maximum where the slope is
(A) Minimum
(B) Maximum
(C) Zero
(D) Changes sign
28. Elasticity of a M.S specimen is defined by
(A) Hooke’s law
(B) Yield point
(C) Proof stress
(D) Elastic limit
29. Rivets are made of following type of material
(A) Tough
(B) Hard
(C) Resilient
(D) Ductile
30. The rate of change of shear force at any section is equal to
(A) Bending moment
(B) Loading
(C) Deflection
(D) Intensely of loading
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