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Engineering Talks

Conceptual Questions

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  1. A particle moving with a uniform velocity has no tangential acceleration. Explain clearly.

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  3. Why the centripetal acceleration is zero, when a particle moves along a straight path ?

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  4. How would you find out the linear velocity of a rotating body?

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  5. Define 'angular velocity' and 'angular acceleration'.

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  6. What do you understand by the term 'acceleration ?

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  7. Distinguish clearly between speed and velocity. Give examples.

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  8. Discuss the phenomenon of collision of elastic bodies.

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  9. Prove the relation for the torque required in order to accelerate a geared system.

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  10. Show that for a relatively small rotor being started from rest with a large rotor, the energy lost in the clutch is approximately equal to that given to the rotor.

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  11. State the law of conservation of momentum.

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  12. What is energy?

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  13. What do you understand by mass moment of inertia ? Explain clearly.

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  14. State Newton's three laws of motion

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  15. Define the term 'coefficient of restitution

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  16. What is a torsional pendulum ?

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  17. Describe the method of finding the moment of inertia of a connecting rod by means of bifilar suspension.

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  18. Show that the minimum periodic time of a compound pendulum is

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  19. Prove the formula for the frequency of oscillation of a compound pendulum.

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  20. What is a simple pendulum ?

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  21. Derive an expression for the period of oscillation of a mass when attached to a helical spring.

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  22. Show that when a particle moves with simple harmonic motion, its time for a complete oscillation is independent of the amplitude of its motion.

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  23. Define the terms amplitude, periodic time, and frequency as applied to S.H.M.

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  24. Explain the meaning of S.H.M. and give an example of S.H.M.

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  25. Write notes on complete and incomplete constraints in lower and higher pairs, illustrating your answer with neat sketches.

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  26. What is a machine ?

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