Engineering Mechanics online quiz - Set 02 - ObjectiveBooks

Quiz Questions

01. Two equal and opposite parallel forces whose lines of action are different, can be replaced by a single force parallel to the given forces.

02. The maximum displacement of a body, from its mean position is called amplitude.

03. The acceleration of a particle moving with simple harmonic motion is proportional to the displacement of the particle from the mean position.

04. The force which acts along the radius of a circle and directed away from the centre of the circle is called centrifugal force.

05. If the resultant of a number of forces acting on a body is zero, then the body will not be in equilibrium.

06. The angle of the inclined plane at which a body just begins to slide down the plane, is called helix angle.

07. The loss of kinetic energy due to direct impact of two bodies __________ upon the value of coefficient of restitution.

08. The time taken by a particle for one complete oscillation is known as periodic time.

09. A machine which is capable of doing work in the reversed direction, after the effort is removed, is called a non-reversible machine.

10. When a particle moves along a circular path, its acceleration has two components, one is normal component and the other is tangential component of acceleration.

11. When a particle moves along a straight path, there will be centripetal acceleration as well as tangential acceleration.

12. The centre of oscillation and centre of suspension for a compound pendulum are interchangeable.

13. The terms 'leverage' and 'mechanical advantage' of a compound lever have got the same meaning.

14. A lift moves downwards with an acceleration of 9.8 m/s2. The pressure exerted by a man on the floor of the lift is zero.

15. The force which acts along the radius of a circle and directed towards the centre of the circle is known as centripetal force.

16. If a number of forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are not in equilibrium.

17. Coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies.

18. The total time taken by a projectile to reach maximum height and to return back to the ground, is known as time of flight.

19. The angle of inclination of a vehicle when moving along a circular path ________ upon its mass.

20. A resultant force is a single force which produces the same effect as produced by all the given forces acting on a body.

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