371. A rectangular beam of length l supported at its two ends carries a central point load W. The maximum deflection occurs
at the ends
at l/3 from both ends
at the centre
none of these
✅ The correct answer is option C.
Strength of Materials MCQs
372. A body is subjected to two normal stresses 20 kN/m2 (tensile) and 10 kN/m2 (compressive) acting perpendicular to each other. The maximum shear stress is
5 kN/m2
10 kN/m2
15 kN/m2
20 kN/m2
✅ The correct answer is option C.
373. When a body is subjected to a direct tensile stress (σ), the maximum normal stress is equal to the direct tensile stress.
Agree
Disagree
✅ The correct answer is option A.
374. The Poisson’s ratio for steel varies from
0.23 to 0.27
0.27 to 0.30
0.31 to 0.34
0.32 to 0.42
✅ The correct answer is option B.
375. A column of length (l) with both ends fixed may be considered as equivalent to a column of length __________ with both ends hinged.
l/8
l/4
l/2
l
✅ The correct answer is option C.
376. The pull required to shear off a rivet, in double shear, per pitch length is
π/4 x d2 x σt
π/4 x d2 x τ
π/2 x d2 x σt
π/2 x d2 x τ
✅ The correct answer is option D.
378. A column of length (l) with both ends fixed may be considered as equivalent to a column of length __________ with one end fixed and the other end free.
l/8
l/4
l/2
l
✅ The correct answer is option B.
379. The neutral axis of the symmetrical beam does not pass through the centroid of the beam.
Agree
Disagree
✅ The correct answer is option B.
380. For a given stress, the ratio of moment of resistance of a beam of square cross-section when placed with its two sides horizontal to the moment of resistance with its diagonal horizontal, is
1-Feb
1
1-Feb
2
✅ The correct answer is option D.