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MCQs

Total Questions : 79 | Page 2 of 8 pages
Question 11. The mass spring system has ________ degrees of freedom.
  1.    4
  2.    3
  3.    6
  4.    5
 Discuss Question
Answer: Option C. -> 6
Answer: (c).6
Question 12. The time for one complete oscillation of the mass in the spring system is called _________
  1.    Amplitude
  2.    Time period
  3.    Free period
  4.    Frequency interval
 Discuss Question
Answer: Option C. -> Free period
Answer: (c).Free period
Question 13. The equation for natural frequency of system as suggested by Barken is __________
  1.    ωn = √f(1 – r2)
  2.    ωn = √cu A / m
  3.    ωn = cu A / m
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> ωn = √cu A / m
Answer: (b).ωn = √cu A / m
Question 14. For an oscillatory machine, the force can be expressed as _________
  1.    Cosine function and Sine function
  2.    Cosec function
  3.    None of the mentioned
  4.    All of the mentioned
 Discuss Question
Answer: Option A. -> Cosine function and Sine function
Answer: (a).Cosine function and Sine function
Question 15. Which of the following expression is called the equation of motion?
  1.    fn = k / m
  2.    z + ωn2 z = 0
  3.    m z + ωn2 z = 0
  4.    k z + k / m = 0
 Discuss Question
Answer: Option B. -> z + ωn2 z = 0
Answer: (b).z + ωn2 z = 0
Question 16. The mass of co-vibrating soil is called __________
  1.    Weight of vibrator
  2.    Soil mass
  3.    Apparent soil mass
  4.    Certain soil mass
 Discuss Question
Answer: Option C. -> Apparent soil mass
Answer: (c).Apparent soil mass
Question 17. The method of Barken is based on the assumption of ___________
  1.    Equation of motion
  2.    Linear spring theory
  3.    Participation of soil in the vibration
  4.    All of the mentioned
 Discuss Question
Answer: Option B. -> Linear spring theory
Answer: (b).Linear spring theory
Question 18. Recommended design value for permissible load on soil under the action of static load, for rock type soil group is ________
  1.    Greater than 10
  2.    5-10
  3.    3.5-5
  4.    Greater than 5
 Discuss Question
Answer: Option D. -> Greater than 5
Answer: (d).Greater than 5
Question 19. The bulb of pressure concept for calculating the apparent mass of soil was introduced by _________
  1.    Balakrishna and Nag raj
  2.    Barken
  3.    None of the mentioned
  4.    All of the mentioned
 Discuss Question
Answer: Option A. -> Balakrishna and Nag raj
Answer: (a).Balakrishna and Nag raj
Question 20. An aim of the foundation designer should be such that the frequency ratio f/fn is either less than _________
  1.    1.5
  2.    0.6
  3.    2.0
  4.    3.4
 Discuss Question
Answer: Option B. -> 0.6
Answer: (b).0.6

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