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If the sample is tested for a large number of cycles below its fatigue limit and the stress is gradually increased above the fatigue limit, the true fatigue limit of material will _______
The ratio of endurance limit in shear to the endurance limit in flexure is
The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of
Consider the following statements regarding crack : 1. Crack is more likely to occur in the regions of discontinuity such as oil holes. 2. Crack is more likely to occur in the regions of irregularities in machining operations such as stamp mark. 3. Crack is more likely to occur in the internal cracks due to defects in materials like blow holes. Which of the above statements are correct ? 
In a motor of 120 machine parts, 5% parts were defective. In another motorof 80 machine parts, 10% parts were defective. For the two motors considered together,the percentage of defective machine parts were
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 material is a fatigue tested below the fatigue limit for few millions of cycles and then retested at higher than fatigue limit. This process is known as ___________
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
Is it possible that the material which shows the fatigue limit in normal environment does not show any endurance limit in a corrosive environment.
If the size of a standard specimen for a fatigue testing machine is increased, the endurance limit for the material will