Railways Technical Ability Vibration Analysis Question Bank Vibration Analysis

  • question_answer Which of the following method(s) is/are adopted in the design of air duct system           
    1. Velocity reduction method          
    2. Equal friction method            
    3. Static regain method.                 
    Select the correct answer using the codes given below: Codes:

    A) 1 alone             

    B) 1 and 2

    C) 2 and 3            

    D) 1, 2 and 3

    Correct Answer: D


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