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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What occurs when two natural frequencies are close together in a 2-DOF system?
💡 Hint: Think about how vibrations interact in a system.
Question 2
Easy
Define the beating phenomenon.
💡 Hint: Remember it involves alternating amplitudes.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is mode coupling?
- Interaction of modes due to loading
- Interaction of vibration modes due to close frequencies
- No interaction
💡 Hint: Think about what happens when two vibration frequencies are similar.
Question 2
True or False: The beating phenomenon leads to vibration with constant amplitude.
- True
- False
💡 Hint: Recall the definition of beating.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A two-story building has natural frequencies of 1 Hz and 1.1 Hz. If excited with a harmonic force at 1 Hz, what is the expected effect?
💡 Hint: Consider how closely spaced frequencies interact.
Question 2
In a bridge design, you identify potential mode coupling between the oscillations caused by traffic. Propose mitigation strategies.
💡 Hint: Think about structural adjustments and damping techniques.
Challenge and get performance evaluation