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

Civil Engineering :: Applied Mechanics and Graphic Statics

  1. A block of weight 50 kg is placed on a horizontal plane. When a horizontal force of 18 kg is applied, the block is just on the point of motion. The angle of friction is

  2. A.

     17° 48'

    B.

     18° 48'

    C.

     19° 48'

    D.

     20° 48'


  3. In a simple harmonic motion, the position of equilibrium is always

  4. A.

     Stable

    B.

     Unstable

    C.

     Neutral

    D.

     None of the above


  5. The velocity ratio of an inclined plane of inclination ‘θ’ with horizontal for lifting a load is

  6. A.

     sin θ

    B.

     cos θ

    C.

     tan θ

    D.

     cosec θ


  7. The maximum displacement of a particle executing S.H.M. corresponds to

  8. A.

     Zero potential energy and maximum kinetic energy

    B.

     Zero kinetic energy and maximum potential energy

    C.

     Maximum kinetic energy and maximum potential energy

    D.

     Minimum kinetic energy and minimum potential energy


  9. A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is

  10. A.

     60 N

    B.

     80 N

    C.

     100 N

    D.

     120 N


  11. If two forces each equal to ‘T’ in magnitude act at right angles, their effect may be neutralized by a third force acting along their bisector in opposite direction whose magnitude will be

  12. A.

     2 T

    B.

     1/2 T

    C.

     √2 T

    D.

     3 T


  13. If a particle is projected inside a horizontal tunnel which is 554 cm high with a velocity of 60 m per sec, the angle of projection for maximum range, is

  14. A.

     8°

    B.

     9°

    C.

     10°

    D.

     11°


  15. Kinetic friction may be defined as

  16. A.

     Friction force acting when the body is just about to move

    B.

     Friction force acting when the body is in motion

    C.

     Angle between normal reaction and resultant of normal reaction and limiting friction

    D.

     Ratio of limiting friction and normal reaction


  17. Energy may be defined as

  18. A.

     Power of doing work

    B.

     Capacity of doing work

    C.

     Rate of doing work

    D.

     All the above


  19. A projectile has maximum range of 40 m on a horizontal plane. If angle of projection is a and the time of flight is 1 second, then sin a must be about (Assume g = 10 m/sec²)

  20. A.

     1/4

    B.

     1/3

    C.

     1/2

    D.

     1/5