Civil Engineering Mcqs

According to law of triangle of forces______________?
  • (A)  three forces acting at a point will be in equilibrium
  • (B)  three forces acting at a point can be represented by a triangle, each side being proportional to force
  • (C)  if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
  • (D)  if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
  • (E)  none of the above
According to principle of moments_________________?
  • (A)  if a system of coplanar forces is in equilibrium, then their algebraic sum is zero
  • (B)  if a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero
  • (C)  the algebraic sum of the moments of any two forces about any point is equal to moment of theiwesultant about the same point
  • (D)  positive and negative couples can be balanced
  • (E)  none of the above