191. The deformation of a bar under its own weight is __________ the deformation, if the same body is subjected to a direct load equal to weight of the body.
equal to
half
double
quadruple
✅ The correct answer is option B.
Strength of Materials MCQs
192. The neutral axis of a beam is subjected to __________ stress.
zero
maximum tensile
minimum tensile
maximum compressive
✅ The correct answer is option A.
193. The point of contraflexure occurs in
cantilever beams
simply supported beams
overhanging beams
fixed beams
✅ The correct answer is option C.
194. In a simply supported beam carrying a uniformly distributed load w per unit length, the point of contraflexure
lies in the centre of the beam
lies at the ends of the beam
depends upon the length of beam
does not exist
✅ The correct answer is option D.
195. The strain energy stored in a spring, when subjected to maximum load, without suffering permanent distortion, is known as
impact energy
proof resilience
proof stress
modulus of resilience
✅ The correct answer is option B.
196. A beam of uniform strength has
same cross-section throughout the beam
same bending stress at every section
same bending moment at every section
same shear stress at e
✅ The correct answer is option B.
197. According to Euler’s column theory, the crippling load of a column is given by p = π2 EI/Cl2. In the Euler’s formula, the value of C for a column with both ends fixed is 4.
Agree
Disagree
✅ The correct answer is option B.
198. The polar modulus for a hollow shaft of outer diameter (D) and inner diameter (d) is
✅ The correct answer is option C.
199. The maximum shear stress developed in a beam of rectangular section is __________ the average shear stress.
equal to
4/3 times
1.5 times
twice
✅ The correct answer is option C.