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Mechanical Engineering Objective Questions { Strength of Materials }

50. The loss of strength in compression due to overloading is known as
D.Bouschinger effect

51. An elastic rod, 1 in long, of negligible weight hangs downward from a support. In one case? a load is applied on rod 20 cm below the support, and in other case the same load isapplied at bottom of rod. The reactions at supports will be '
A.More in first case
B.Same in both the cases
C.More in second case
D.Data are not sufficient to I determine same

52. In question 11.56, the internal reaction in bottom 80 cm length will be
A.Same in both cases
B.Zero in first case
C.Different in both cases
D.Data are not sufficient to determine same

53. Flow stress corresponds to
A.Fluids in motion
B.Breaking point
C.Plastic deformation of solids
D.rupture stress

54. When it is indicated that a member is elastic, it means that when force is applied, it will
A.Not deform
B.Be safest
D.Not stretch

55. The energy absorbed in a body, when it is strained within the elastic limits, is known as
A.Strain energy
C.Proof resilience
D.Modulus of resilience

56. Resilience of a material is considered when -it is subjected to
A.Frequent heat treatment
D.Shock loading

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