Machine Design - Study Mode
[#176] A column of length $$l$$ is fixed at both ends. The equivalent length of the column is
Correct Answer
(A) $$frac{l}{2}$$
[#177] The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that
Correct Answer
(A) It is subjected to a higher cyclic loading than the outer side
[#178] Soderberg relation is based on __________ of the material whereas all other failure relation for dynamic loading are based on ultimate strength of the material.
Correct Answer
(B) Yield strength
[#179] When a closely coiled helical spring is subjected to a couple about its axis, the stress induced in the wire material of the spring is
Correct Answer
(A) Bending stress only
[#180] The notch angle of the Izod impact test specimen is
Correct Answer
(D) 45°