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- Subject
- Machine Designmechanical-engineering-mcqs › machine-design
- Published
- 26 Jan 2019
- Last updated
- 28 May 2026
Explanation
Fatigue cracks in nitrided parts do not commonly start at the surface, just below it, within the core, or randomly anywhere. Therefore, none of the provided choices correctly describe the typical origin of fatigue cracks in these components.
More Machine Design MCQs
Practice related questions from the same subject.
- 1.What does the designation M 33 x 2 indicate for a bolt?
- 2.By which parameter are rivets typically designated?
- 3.Which of these methods provides a fixed and non-removable joint?
- 4.Given that the tearing efficiency of a riveted joint is 75%, what is the corresponding ratio of the rivet diameter to the pitch?
- 5.What is the principle behind the locking mechanism of a jam nut?
- 6.Where are buttress threads most commonly utilized?
- 7.What is the name of a key that fits into a curved slot machined on a shaft and can pivot within it?
- 8.What is the name of the tapered key that fits into a keyway on the hub and lies flat against the shaft?
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