Railways Technical Ability Vibration Analysis Question Bank Vibration Analysis

  • question_answer Consider the following statements:        
    1. When frequency ratio is < 2, the force transmitted to the foundation is more than the exciting force.
    2. When frequency ratio is > 2, the force transmitted to the foundation increases and the damping is decreased.
    3. The analysis of base excited vibrations is similar to that of forced vibrations.             
    Which of these statements are correct?    

    A) 1 and 2            

    B) 2 and 5

    C) 1 and 3            

    D) 1, 2 and 3

    Correct Answer: A


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