261. The maximum shear stress developed in a beam of circular section is __________ the average shear stress.
equal to
4/3 times
1.5 times
twice
✅ The correct answer is option B.
Strength of Materials MCQs
262. In a watch, the spring is used to store strain energy. This energy is released
to stop the watch
to run the watch
to change the time
all of these
✅ The correct answer is option B.
263. When a body is subjected to a direct tensile stress (σ) in one plane, then maximum normal stress occurs at a section inclined at __________ to the normal of the section.
0°
30°
45°
90°
✅ The correct answer is option A.
264. If percentage reduction in area of a certain specimen made of material ‘A’ under tensile test is 60% and the percentage reduction in area of a specimen with same dimensions made of material ‘B’ is 40%, then
the material A is more ductile than material B
the material B is more ductile than material A
the ductility of material A and B is equal
the material A is brit
✅ The correct answer is option A.
265. Mohr’s circle is used to determine the stresses on an oblique section of a body subjected to
direct tensile stress in one plane accompanied by a shear stress
direct tensile stress in two mutually perpendicular directions
direct tensile stress in two mutually perpendicular directions accompanied by a simple shear stress
all of the above
✅ The correct answer is option D.
266. In the below figure, the stress corresponding to point D is
yield point stress
breaking stress
ultimate stress
elastic limit
✅ The correct answer is option C.
267. The bending stress in abeam is __________ bending moment.
equal to
less than
more than
directly proportional
✅ The correct answer is option D.
269. The bending moment diagram for a cantilever beam of length l and carrying a gradually varying load from zero at the free end and w per unit length at the fixed end is a parabolic curve.
Agree
Disagree
✅ The correct answer is option A.
270. According to Euler’s column theory, the crippling load for a column length (l) hinged at both ends, is
✅ The correct answer is option A.