391. If the section modulus of a beam is increased, the bending stress in the beam will
not change
increase
decrease
✅ The correct answer is option C.
Strength of Materials MCQs
392. The ductility of a material __________ with the increase in percentage reduction in area of a specimen under tensile test.
increases
decreases
remains same
✅ The correct answer is option A.
393. The moment of resistance of a balanced reinforced concrete beam is based on the stresses in
steel only
concrete only
steel and concrete both
none of these
✅ The correct answer is option C.
395. In the above question, the normal stress on an oblique section will be maximum, when θ is equal to
0°
30°
45°
90°
✅ The correct answer is option A.
396. The load at which the column just buckles, is known as
buckling load
critical load
crippling load
any one of these
✅ The correct answer is option D.
397. The maximum deflection of a fixed beam of length l carrying a total load W uniformly distributed over the whole length is
✅ The correct answer is option D.
398. The bending moment at the ends of a simply supported beam will be zero.
Yes
No
✅ The correct answer is option A.
399. In a cantilever beam of length l subjected to a uniformly distributed load of w per unit length, the maximum deflection lies at the fixed end.
Yes
No
✅ The correct answer is option B.
400. The maximum deflection of a fixed beam of length l carrying a central point load W is
✅ The correct answer is option C.