A. finishing and polishing
B. shot-peening
C. decarburisation
D. electroplating
E. all of the above”.
Related Mcqs:
- 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 - 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 - 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 - 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 - The fatigue limit of a material____________________?
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 - 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 - 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 - The building up of worn and uridersized parts, subjected to repeated loads by electroplating is_____________________?
A. best method
B. extremely hazardous
C. has no effect as regards fatigue strength
D. cheapest method
E. all of the above - In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by_________________?
A. decreasing the cross-section area of’ bar
B. increasing the cross-section area of bar
C. remain unaffected with cross-section area
D. would depend upon other factors
E. none of the above
