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MCQs

Total Questions : 735 | Page 3 of 74 pages
Question 21. Which of the following is a vector quantity
  1.    energy
  2.    mass
  3.    momentum
  4.    angle
 Discuss Question
Answer: Option C. -> momentum
Question 22. Which of the following is not a vector quantity
  1.    weight
  2.    velocity
  3.    acceleration
  4.    force
 Discuss Question
Answer: Option A. -> weight
Question 23. According to principle of transmissibility of forces, the effect of a force upon a body is
  1.    Maximum when it acts at the center of gravity of a body
  2.    Different at different points in its line of action
  3.    The same at every point in its line of action
  4.    Minimum when it acts at the C.G. of the body
 Discuss Question
Answer: Option C. -> The same at every point in its line of action
Question 24. Kinetic friction is the
  1.    Tangent of angle between normal reaction and the resultant of normal reaction and the limiting friction
  2.    Ratio of limiting friction and normal reaction
  3.    The friction force acting when the body is just about to move
  4.    The friction force acting when the body is in motion
 Discuss Question
Answer: Option D. -> The friction force acting when the body is in motion
Question 25. Effect of a force on a body depends upon
  1.    magnitude
  2.    direction
  3.    position or line of action
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 26. The C.G. of a solid hemisphere lies on the central radius 3r
  1.    at distance — from the plane base 3r
  2.    at distance — from the plane base 3r
  3.    at distance — from the plane base 3r
  4.    at distance — from the plane base or
 Discuss Question
Answer: Option D. -> at distance — from the plane base or
Question 27. D Alembert’s principle is used for
  1.    reducing the problem of kinetics to equivalent statics problem
  2.    determining stresses in the truss
  3.    stability of floating bodies
  4.    designing safe structures
 Discuss Question
Answer: Option A. -> reducing the problem of kinetics to equivalent statics problem
Question 28. Tangent of angle of friction is equal to
  1.    kinetic friction
  2.    limiting friction
  3.    angle of repose
  4.    coefficient of friction
 Discuss Question
Answer: Option D. -> coefficient of friction
Question 29. A force is completely defined when we specify
  1.    magnitude
  2.    direction
  3.    point of application
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 30. A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve
  1.    catenary
  2.    parabola
  3.    hyperbola
  4.    elliptical
 Discuss Question
Answer: Option B. -> parabola

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