Structural Engineering III MCQ with Answers

76) A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of

Answer is:

0.134 r

77) The algebraic sum of moments of the forces forming couple about any point in their plane is

Answer is:

equal to the moment of the couple

78) A single force and a couple acting in the same plane upon a rigid body

Answer is:

cannot balance each other

79) If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either

Answer is:

all the above are correct

80) The maximum frictional force which comes into play when a body just begins to slide over another surface is called

Answer is:

limiting friction

Explanation:

The maximum frictional force, which comes into play, when an body just begins to slide over the surface of the other body, is known as limiting friction.