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

### Civil Engineering :: Applied Mechanics and Graphic Statics

1. In case of S.H.M. the period of oscillation (T), is given by

2.  A.  T = 2ω/π² B.  T = 2π/ω C.  T = 2/ω D.  T = π/2ω   3. The angular speed of a car taking a circular turn of radius 100 m at 36 km/hr will be   5. A body is said to move with Simple Harmonic Motion if its acceleration, is

6.  A.  Always directed away from the centre, the point of reference B.  Proportional to the square of the distance from the point of reference C.  Proportional to the distance from the point of reference and directed towards it D.  Inversely proportion to the distance from the point of reference   7. The resultant of two forces ‘P’ and ‘Q’ acting at an angle ‘θ’, is

8.  A.  P² + Q² + 2P sin θ B.  P² + Q² + 2PQ cos θ C.  P² + Q² + 2PQ tan θ D.  √(P² + Q² + 2PQ cos θ)   9. Parallelogram Law of Forces states, "if two forces acting simultaneously on a particle be represented in magnitude and direction by two adjacent sides of a parallelogram, their resultant may be represented in magnitude and direction by

10.  A.  Its longer side B.  Its shorter side C.  The diagonal of the parallelogram which does not pass through the point of intersection of the forces D.  The diagonal of the parallelogram which passes through the point of intersection of the forces   11. A ball is dropped from a height of 2.25 m on a smooth floor and rises to a height of 1.00 m after the bounce. The coefficient of restitution between the ball and the floor is

12.  A.  0.33 B.  0.44 C.  0.57 D.  0.67   13. A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is

14.  A.  0.25 B.  0.50 C.  0.75 D.  1.0   15. In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively

16.  A.  50 and 75 B.  75 and 50 C.  75 and 75 D.  50 and 50   17. In SI units, the units of force and energy are respectively

18.  A.  Newton and watt B.  Dyne and erg C.  Newton and joule D.  kg wt and joule   19. The centre of gravity of the trapezium as shown in below figure from the side is at a distance of 20.  A.  (h/3) × [(b + 2a)/(b + a)] B.  (h/3) × [(2b + a)/(b + a)] C.  (h/2) × [(b + 2a)/(b + a)] D.  (h/2) × [(2b + a)/(b + a)]   