341. The rivets are used for __________ fastenings.
permanent
temporary
✅ The correct answer is option A.
Strength of Materials MCQs
342. A simply supported beam ‘A’ of length l, breadth b and depth d carries a central load W. Another beam ‘B’ of the same dimensions carries a central load equal to 2 W. The deflection of beam ‘B’ will be __________ as that of beam ‘A’.
one-fourth
one-half
double
four times
✅ The correct answer is option C.
343. A reinforced cement concrete beam is considered to be made of
homogeneous material
hetrogeneous material
composite material
isotropic material
✅ The correct answer is option B.
344. The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, l = Original length of the body, A = Cross-sectional area of the body, and E = Young’s modulus for the material of the body)
✅ The correct answer is option B.
345. The strength of the shaft is judged by the torque transmitted by the shaft.
Yes
No
✅ The correct answer is option A.
346. When a rectangular beam is loaded transversely, the zero stress is developed on the neutral axis.
TRUE
FALSE
✅ The correct answer is option A.
347. The neutral axis of a transverse section of a beam passes through the centre of gravity of the section and is
in the vertical plane
in the horizontal plane
in the same plane in which the beam bends
at right angle to the
✅ The correct answer is option D.
348. The unit of stress in S.I. units is
N/mm2
kN/mm2
N/m2
any one of these
✅ The correct answer is option D.
349. The springs in brakes and clutches are used to
to apply forces
to measure forces
to store strain energy
to absorb shocks
✅ The correct answer is option A.
350. A fixed beam is one which is fixed at __________ of its ends.
one
both
✅ The correct answer is option B.