Strength Of Materials In Me - Study Mode
[#66] A bar of length ‘L’ meters extends by ‘$$l$$’ mm under a tensile force of ‘P’. The strain produced in the bar is
Correct Answer
(D) 0.001 $$frac{l}{{ ext{L}}}$$
[#67] The weakest section of a diamond riveting is the section which passes through
Correct Answer
(D) One rivet hole of the end row
[#68] Strain is equal to (where $$l$$ = Original length and $$delta l$$ = Change in length)
Correct Answer
(B) $$frac{{delta l}}{l}$$
[#69] In leaf springs, the maximum bending stress developed in the plates is (where W = Load acting on the spring, $$l$$ = Span of the spring, n = Number of plates, b = Width of plates and t = Thickness of plates)
Correct Answer
(B) $$frac{{3{ ext{W}}l}}{{2{ ext{nb}}{{ ext{t}}^2}}}$$
[#70] The maximum stress produced in a bar of tapering section is at
Correct Answer
(A) Smaller end