Home / Civil Engineering / Applied Mechanics and Graphic Statics :: section-1

Civil Engineering :: Applied Mechanics and Graphic Statics

  1. The tension in a cable supporting a lift

  2. A.

     Is more when the lift is moving downwards

    B.

     Is less when the lift is moving upwards

    C.

     Remains constant whether its moves downwards or upwards

    D.

     Is less when the lift is moving downwards

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and

  4. A.

     Concurrent

    B.

     Parallel

    C.

     Concurrent parallel

    D.

     None of these

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. A stone is thrown up a slope of inclination 60° to the horizontal. At what angle to the slope must the stone be thrown so as to land as far as possible from the point of projection ?

  6. A.

     15°

    B.

     30°

    C.

     45°

    D.

     75°

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. Two shots fired simultaneously from the top and bottom of a vertical tower with elevations of 30° and 45° respectively strike a target simultaneously. If horizontal distance of the target from the tower is 1000 m, the height of the tower is

  8. A.

     350 m

    B.

     375 m

    C.

     400 m

    D.

     425 m

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. A body of weight 14 g appears to weight 13 g when weighed by a spring balance in a moving lift. The acceleration of the lift at that moment was

  10. A.

     0.5 m/sec²

    B.

     0.7 m/sec²

    C.

     1 m/sec²

    D.

     1 cm/sec²

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length

  12. A.

     Must be decreased

    B.

     Must be increased

    C.

     Is not changed but weight of the bob is increased

    D.

     Is not changed but weight of the bob is decreased

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. The centre of gravity of a homogeneous body is the point at which the whole

  14. A.

     Volume of the body is assumed to be concentrated

    B.

     Area of the surface of the body is assumed to be concentrated

    C.

     Weight of the body is assumed to be concentrated

    D.

     All the above

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. The following is in unstable equilibrium

  16. A.

     A uniform solid cone resting on a generator on a smooth horizontal plane

    B.

     A uniform solid cone resting on its base on a horizontal plane

    C.

     A solid cube resting on one edge

    D.

     A satellite encircling the earth

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. Time required to stop a car moving with a velocity 20 m/sec within a distance of 40 m, is

  18. A.

     2 sec

    B.

     3 sec

    C.

     4 sec

    D.

     5 sec

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. A uniform rod 9 m long weighing 40 kg is pivoted at a point 2 m from one end where a weight of 120 kg is suspended. The required force acting at the end in a direction perpendicular to rod to keep it equilibrium, at an inclination 60° with horizontal, is

  20. A.

     40 kg

    B.

     60 kg

    C.

     10 kg

    D.

     100 kg

    View Answer

    Workspace

    Discuss Discuss in Forum