PakQuizHub

A motor's flywheel accelerates from zero to 1000 rpm within 6 seconds. Approximately how many revolutions does it complete during this time?

Strength of Materials MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

Browse all Strength of Materials MCQs →
PPSCFPSCNTSPakistan govt jobs
Subject
Strength of Materialscivil-engineering-mcqs › strength-of-materials
Published
15 Jan 2019
Last updated
28 May 2026

Browse all Strength of Materials MCQs →

Choose the correct answer

Explanation

The flywheel starts from rest and reaches 1000 rpm in 6 seconds. Assuming uniform acceleration, the average speed is half of the final speed, which is 500 rpm. Converting 500 rpm to revolutions per second gives 500/60 ≈ 8.33 rps. Multiplying by 6 seconds, the total revolutions are approximately 8.33 × 6 = 50 revolutions.

More Strength of Materials MCQs

Practice related questions from the same subject.

  1. 1.In a third-class lever, how are the positions of the load (W), effort (P), and fulcrum (F) arranged?
  2. 2.What is the standard SI unit used to measure work or energy?
  3. 3.Identify the option that is not a unit used to measure pressure.
  4. 4.What is the term for forces that intersect at a single point but whose lines of action are not confined to the same plane?
  5. 5.Identify the quantity below that is not classified as a scalar.
  6. 6.Two forces act at different angles and produce different resultant magnitudes: when perpendicular, their resultant is √10 kg, and when the angle between them is 60°, the resultant measures √13 kg. What are the magnitudes of these two forces?
  7. 7.What is formed when two equal, parallel forces act in opposite directions but are not along the same line?
  8. 8.What does the law of the triangle of forces state?
← Back to Civil Engineering Mcqs
More in Civil Engineering Mcqs

PakQuizHub — free MCQs and past papers for Pakistan government job tests. Content is for educational practice only.