The amount of test cycles required to find out the fatigue stress of hard steels is ___________(a) 10,000,000(b) 2600(c) 26(d) 2,000,000This question was posed to me during an internship interview.My question is from Aircraft Materials in division Testing Aircraft Materials of Aerospace Materials & Processes

The amount of test cycles required to find out the fatigue stress of h

1.	The amount of test cycles required to find out the fatigue stress of hard steels is ___________(a) 10,000,000(b) 2600(c) 26(d) 2,000,000This question was posed to me during an internship interview.My question is from Aircraft Materials in division Testing Aircraft Materials of Aerospace Materials & Processes
Answer» Correct choice is (d) 2,000,000 Explanation: Performing a fatigue test on a material is a very DIFFICULT TASK. The amount of test CYCLES required to be performed on HARD steels is 2,000,000. For SOFT steels, the number of cycles required is 10,000,000.

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