Quiz  /  Strength of Materials MCQ Interview Questions and Answers

  • 1. 
    The unit of force in S.I. units is

  • kilogram
  • newton
  • watt
  • dyne
  • joule.

  • 2. 
    The unit of work or energy in S.I. units is

  • newton
  • pascal
  • kilogram meter
  • watt
  • joule.

  • 3. 
    The unit of power in S.I. units is

  • newton meter
  • watt
  • joule
  • kilogram meter/sec.
  • pascal per sec.

  • 4. 
    Forces are called concurrent when their lines of action meet in

  • one point
  • two points
  • plane
  • perpendicular planes
  • different planes.

  • 5. 
    Forces are called coplanar when all of them acting on body lie in

  • one point
  • one plane
  • different planes
  • perpendicular planes
  • different points.

  • 6. 
    A force acting on a body may

  • introduce internal stresses
  • balance the other forces acting on it
  • retard its motion
  • change its motion
  • all of the above.

  • 7. 
    Which is the correct statement about law of polygon of forces ? of a polygon taken in order, then the forces are in equilibrium

  • if any number of forces acting at a point can be represented by the sides
  • if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium
  • if a polygon representing forces acting at a point is closed then forces are in equilibrium
  • if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium
  • none of the above.

  • 8. 
    Effect of a force on a body depends upon

  • magnitude
  • direction
  • position or line of action
  • all of the above
  • none of the above.

  • 9. 
    If a number of forces act simultaneously on a particle, it is possible

  • not a replace them by a single force
  • to replace them by a single force
  • to replace them by a single force through C.G.
  • to replace them by a couple
  • to replace them by a couple and a force.

  • 10. 
    A force is completely defined when we specify

  • magnitude
  • direction
  • point of application
  • all of the above
  • none of the above.
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