Related Questions

The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to
A Static load
B Dynamic load
C Static as well as dynamic load
D Completely reversed load
Endurance is a measure of fatigue limit of a metal. Fatigue crack in nitrided machine parts originates
A At the surface
B Within the core
C Just below the surface
D Anywhere on the surface
The yield point in fatigue loading compared to that in static loading is less. The ratio of ultimate tensile strength to endurance limit of a material subjected to fatigue loading is
A 0.5
B 1
C 1.5
D 2
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
The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of
A 0.45
B 0.55
C 0.65
D 0.75
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
When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is
A 0.20
B 0.35
C 0.50
D 0.65
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.
A Same
B Less
C More
D None of these
Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails
A Below the yield point
B Above the yield point
C Below the elastic limit
D At the elastic limit
Which of the following parameters is actually measured during tensile testing of a specimen using Universal testing machine?
A Load & elongation
B Engineering stress & strain
C True stress & strain
D Poisson's ratio & Young's modulus

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