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EQUILIBRIUM OF FORCES MCQs

Total Questions : 20 | Page 2 of 2 pages
Question 11. The resolved part of the resultant of two forces inclined at an angle θ in a given direction is equal to
  1.    The algebraic sum of the resolved parts of the forces in the given direction
  2.    The sum of the resolved parts of the forces in the given direction
  3.    The difference of the forces multiplied by the cosine of θ
  4.    The sum of the forces multiplied by the sine of θ
 Discuss Question
Answer: Option A. -> The algebraic sum of the resolved parts of the forces in the given direction
Question 12. A number of forces acting at a point will be in equilibrium if
  1.    Their total sum is zero
  2.    Two resolved parts in two directions at right angles are equal
  3.    Sum of resolved parts in any two perpendicular directions are both zero
  4.    All of them are inclined equally
 Discuss Question
Answer: Option C. -> Sum of resolved parts in any two perpendicular directions are both zero
Question 13. If after a slight tilt the body returns to its previous equilibrium, then it is said to be in
  1.    zero equilibrium
  2.    stable equilibrium
  3.    unstable equilibrium
  4.    neutral equilibrium
 Discuss Question
Answer: Option B. -> stable equilibrium
Question 14. If the net force acting on the body is zero then the body is said to be
  1.    imbalanced
  2.    balanced
  3.    in equilibrium
  4.    not in equilibrium
 Discuss Question
Answer: Option C. -> in equilibrium
Question 15. If after a slight tilt the body does not return to its previous equilibrium, then it is said to be in
  1.    stable equilibrium
  2.    unstable equilibrium
  3.    zero equilibrium
  4.    neutral equilibrium
 Discuss Question
Answer: Option B. -> unstable equilibrium
Question 16. Which of the following is true when a body is stationary?
  1.    The body is in vacuum
  2.    There is no force acting on it
  3.    The force acting on it is not in contact with it
  4.    The combination of forces acting on it balance each other
 Discuss Question
Answer: Option D. -> The combination of forces acting on it balance each other
Question 17. For equilibrium, the net force acting on the body is zero
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 18. The force acting on a unit area
  1.    Density
  2.    Specific weight
  3.    Pressure intensity
  4.    Energy
 Discuss Question
Answer: Option C. -> Pressure intensity
Question 19. Unit of the moment of a force
  1.    Kilogram
  2.    Pascal
  3.    Newton meter
  4.    Kilogram per cubic metre
 Discuss Question
Answer: Option C. -> Newton meter
Question 20. Which of the following do not have identical dimensions ?
  1.    Momentum and impulse
  2.    Torque and work
  3.    Kinetic energy and potential energy
  4.    Moment of a force and angular momentum
 Discuss Question
Answer: Option D. -> Moment of a force and angular momentum

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