41. Which of the following is the correct torsion equation?
✅ The correct answer is option B.
Strength of Materials MCQs
42. In the below figure, __________ represents glass.
curve A
curve B
curve C
curve D
✅ The correct answer is option C.
44. In calculating the strength of a riveted joint in tearing, shearing and crushing, the
actual diameter of rivet is used
actual diameter of hole drilled for rivet is used
mean diameter of hole drilled and rivet is used
smaller of the rivet d
✅ The correct answer is option B.
45. Shear strength of the welded joint for double parallel fillet is (where τ = Allowable shear stress for weld metal)
0.5 s.l.τ
s.l.τ
2 s.l.τ
2.s.l.τ
✅ The correct answer is option C.
46. When a circular bar tapering uniformly from diameter d1, at one end to diameter d2 at the other end, is subjected to an increase in temperature (t), then the thermal stress induced is (where α = Coefficient of linear expansion, and E = Modulus of elasticity for the bar material)
✅ The correct answer is option A.
47. A beam of triangular section is placed with its base horizontal. The maximum shear stress occurs at
apex of the triangle
mid of the height
centre of gravity of the triangle
base of the triangle
✅ The correct answer is option B.
48. The layer at the centre of gravity of the beam as shown in the below figure, will be
in tension
in compression
neither in tension nor in compression
✅ The correct answer is option C.
49. In case of an over-reinforced beam, the depth of actual neutral axis is the same as that of the critical neutral axis.
TRUE
FALSE
✅ The correct answer is option B.