Design Against Fluctuating Load Practice Set

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1. The reliability factor for using 50% reliability in design is

2. Stress concentration occurs due to

3. The surface finish factor for a highly polished component is

4. The relationship between endurance limit of component subjected to fluctuating torsional shear stresses (Sse) to endurance limit in revered bending (Se) is

5. Fatigue failure results due to fluctuating stresses when the stress magnitude is

6. As the size of the component increases, the endurance limit of the component

7. The notch sensitivity factor (q) is given by

    Where, Kt and Kf are theoretical and fatigue stress concentration factors

8. The factor of safety for machine parts subjected to reversed stresses is

9. A stress that varies in sinusoidal manner with respect to time from a minimum value to maximum value and which has some mean as well as amplitude value is called

10. The approximate relationship between endurance limit of rotating beam specimen (S’e) and ultimate tensile strength (Sut), in case of steel component, is


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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