91. The product of Young’s modulus (E) and moment of inertia (I) is known as
modulus of rigidity
bulk modulus
flexural rigidity
torsional rigidity
✅ The correct answer is option C.
Strength of Materials MCQs
92. A body is subjected to a direct tensile stress of 300 MPa in one plane accompanied by a simple shear stress of 200 MPa. The maximum shear stress will be
-100 MPa
250 MPa
300 MPa
400 MPa
✅ The correct answer is option B.
93. The relation between equivalent length (L) and actual length (l) of a column for both ends fixed is
L = l/2
L = l/2
L = l
L = 2l
✅ The correct answer is option A.
94. A beam which is fixed at one end and free at the other is called
simply supported beam
fixed beam
overhanging beam
cantilever beam
✅ The correct answer is option D.
96. The assumption made in Euler’s column theory is that
the failure of column occurs due to buckling alone
the length of column is very large as compared to its cross-sectional dimensions
the column material obeys Hooke’s law
all of the above
✅ The correct answer is option D.
97. The bending moment at the free end of a cantilever beam is
zero
minimum
maximum
✅ The correct answer is option A.
98. In a riveted joint, when the rivets in the various rows are opposite to each other, the joint is said to be
chain riveted
zig-zag riveted
diamond riveted
none of these
✅ The correct answer is option A.
99. The maximum bending moment of a cantilever beam of length l and carrying a uniformly distributed load of w per unit length lies at the middle of its length.
TRUE
FALSE
✅ The correct answer is option B.