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EQUILIBRIUM OF FORCES MCQs

Total Questions : 20 | Page 1 of 2 pages
Question 1. In which direction should the force be applied to balance a force in the direction of North-East direction?
  1.    South
  2.    West
  3.    South-West
  4.    North-East
 Discuss Question
Answer: Option C. -> South-West
Question 2. Among the following which cannot be a resultant force of 5 N and 10 N?
  1.    4 N
  2.    5 N
  3.    8 N
  4.    12 N
 Discuss Question
Answer: Option A. -> 4 N
Question 3. The mass per unit volume of a body
  1.    Density
  2.    Energy
  3.    Specific weight
  4.    Pressure intensity
 Discuss Question
Answer: Option A. -> Density
Question 4. If three forces acting at a point are in equilibrium, the ratio of any of the forces to the sine of the angle between the remaining two forces is the same
  1.    Lima's theorem
  2.    Moment of a force
  3.    The theorem of varignon
  4.    Principle of transmissibility
 Discuss Question
Answer: Option A. -> Lima's theorem
Question 5. This being the rate of doing work is expressed in newton per second or joule per second
  1.    Power
  2.    Work Energy
  3.    Specific weight w
  4.    Stress, Modulus of Elasticity
 Discuss Question
Answer: Option A. -> Power
Question 6. If three coplanar forces acting at a point are in equilibrium, they can be represented in magnitude and direction by the sides of a triangle drawn in such a manner that the sides of the triangular are parallel to the forces taken in order
  1.    Theorem of Varignon
  2.    Principle of triangle of forces
  3.    Lami’s theorem
  4.    Principle of transmissible
 Discuss Question
Answer: Option B. -> Principle of triangle of forces
Question 7. The net moment of the body is zero that means the distance between the force and the rotational axis is zero
  1.    The first part of the statement is false and other part is true
  2.    The first part of the statement is false and other part is false too
  3.    The first part of the statement is true and other part is true too
  4.    The first part of the statement is true and other part is false
 Discuss Question
Answer: Option D. -> The first part of the statement is true and other part is false
Question 8. To satisfy first condition of equilibrium, if rightward forces are positive, leftward forces must be
  1.    positive
  2.    negative
  3.    doubled
  4.    halved
 Discuss Question
Answer: Option B. -> negative
Question 9. If two equal forces of magnitude P act at an angle θ degree, their resultant will be
  1.    P/2 cos θ/2
  2.    2P sin θ/2
  3.    2P tan θ/2
  4.    2P cos θ/2
 Discuss Question
Answer: Option D. -> 2P cos θ/2
Question 10. Forces are called coplaner when all of them acting on body lie in
  1.    One point
  2.    One planes
  3.    Different planes
  4.    Perpendicular planes
 Discuss Question
Answer: Option B. -> One planes

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