A. is greatly decreased by poor surface conditions
B. remains same irrespective of surface conditions
C. depends mainly on core composition
D. is dependent upon yield strength of material
E. none of the above
Related Mcqs:
- Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to________________?
A. dynamic loading
B. static loading
C. combined static and dynamic loading
D. completely reversed loading
E. all of the above - The ratio of endurance limit in shear to the endurance limit in flexure is__________________________?
A. 0.33
B. 0.4
C. 0.5
D. 0.55
E. 0.6 - The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of____________?
A. 0.25
B. 0.45
C. 0.55
D. 0.65
E. 0.75 - Which of the following is not correct procedure to increase the fatigue limit_______________?
A. cold working
B. shot peening
C. surface decarburisation
D. under-stressing
E. all of the above - Fatigue strength can be increased by__________________?
A. cold working
B. shot peening
C. grinding and lapping surface
D. hot working
E. using gradual changes of section - The fatigue life of a part can be improved by_____________________?
A. electroplating
B. polishing
C. coating
D. shot peening
E. heat treating - Yield point in fatigue loading as compared to static loading is__________________?
A. same
B. higher
C. lower
D. depends on other factors
E. none of the above - Which process will increase the fatigue duration of parts ?
A. finishing and polishing
B. shot-peening
C. decarburisation
D. electroplating
E. all of the above”. - In nitrated parts, the origins of the fatigue cracks will occur at__________________?
A. surface
B. just below the surface
C. within the core
D. could occur anywhere
E. none of the above - Resistance to fatigue of a material is measured by________________?
A. Young’s modulus
B. coefficient of elasticity
C. elastic limit
D. ultimate tensile strength
E. endurance limit
