Discussion
Successive peaks in a free vibration record measure 12 mm and 9 mm. The logarithmic decrement is nearest to
Answer: D
Taking \( \delta = \ln(12/9) = \ln 1.333 = 0.288 \). Dividing the two amplitudes without taking the logarithm gives 1.333, which is the amplitude ratio itself and not the decrement, and it would imply damping several times larger than the record actually shows.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development