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- Strength of Materialsmechanical-engineering-mcqs › strength-of-materials-mechanical-engineering-mcqs
- Published
- 25 Jan 2019
- Last updated
- 28 May 2026
Explanation
To find the total revolutions, first convert 1000 rpm to revolutions per second: 1000 ÷ 60 ≈ 16.67 rps. Since the flywheel starts from rest and accelerates uniformly, the average speed is half of the final speed: 16.67 ÷ 2 ≈ 8.33 rps. Total revolutions = average speed × time = 8.33 × 6 ≈ 50 revolutions.
More Strength of Materials MCQs
Practice related questions from the same subject.
- 1.Up to which point does Hooke's law remain valid?
- 2.What is the unit of Young's modulus?
- 3.When a body is subjected to equal and opposite forces that attempt to stretch it, the resulting stress is known as______________________?
- 4.What is the modulus of rigidity defined as the ratio of?
- 5.How does the ultimate tensile strength of mild steel compare to its ultimate compressive strength?
- 6.When a thin mild steel wire is subjected to gradually increasing loads in equal steps until it fractures, how does the extension change with the applied loads?
- 7.What happens to the Young's modulus of a wire if its radius is increased to twice its original size under the same load?
- 8.How is the tensile strength of a material calculated during a tensile test?
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