Vibrations MCQ

Q1. What is the unit of vibration frequency?

Q2. Which type of vibration occurs without external force?

Q3. Which parameter represents resistance to motion in vibration?

Q4. Natural frequency depends on which factors?

Q5. What happens at resonance?

Q6. Which vibration has constant amplitude?

Q7. Damping ratio is represented by which symbol?

Q8. Critical damping occurs when damping ratio equals:

Q9. Which material has high damping capacity?

Q10. Which term refers to opposition to acceleration?

Q11. What is the equation of natural frequency for a spring-mass system?

Q12. Which system has no energy loss?

Q13. Logarithmic decrement is used to measure:

Q14. Which vibration occurs due to external periodic force?

Q15. In a vibrating system, stiffness provides:

Q16. What is mode shape?

Q17. Natural frequency is measured in:

Q18. Which of the following increases natural frequency?

Q19. Whirling occurs in:

Q20. Critical speed is related to:

Q21. Damping force is proportional to:

Q22. Which system oscillates forever theoretically?

Q23. Which vibration is unpredictable in nature?

Q24. Which energy changes during vibration?

Q25. Vibration amplitude is maximum at:

Q26. Which component does not cause vibration?

Q27. What type of vibration occurs due to sudden impact?

Q28. Which factor reduces vibration amplitude?

Q29. The simplest form of vibration motion is:

Q30. Which system stores energy?

Q31. Mass-spring system vibrates due to:

Q32. Modal analysis is used to find:

Q33. Which vibration is caused by machine unbalance?

Q34. Vibration isolation reduces:

Q35. Zero damping leads to:

Q36. Which type of damping exists in automobiles?

Q37. Which factor increases damping?

Q38. Which element controls oscillation speed?

Q39. Periodic vibration repeats after:

Q40. Which vibration occurs when system vibrates at its natural frequency?