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RVUNL ME || Machine Design || Quiz 1
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Question 1
A machine component is subjected to variable loading such that amplitude stress, mean stress. endurance Limit stress, ultimate strength and yield strength are 90MPa, 150MPa, 270 MPa, 600MPa, 450 MPa respectively. Find the factor of safety Using Soderberg line.
Question 2
A machine component subjected to fluctuating stress that varies from 30 to 50 MPa the amplitude ratio is __________.
Question 3
Notch sensitivity (q) is given by the equation _______.
where Kf = fatigue stress concentration factor and Kt = theoretical stress concentration factor.
Question 4
In which of the following case stress concentration factor is ignored?
Question 5
The phenomenon of decreased resistance of the materials to fluctuating stresses is the main characteristic of _____ failure.
Question 6
Factor of safety is the ratio of:
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