# Online Quiz on Theory of Machines - Set 03

## Theory of Machines Online Quiz: Set - 03

1. When a mechanism is required to transmit power or to do some particular type of work, then it becomes a machine.
Agree
Disagree

2. When two pulleys are connected by means of an open belt drive, then both the pulleys will rotate is opposite directions.
Right
Wrong

3. In a simple train of wheels, if the number of intermediate wheels is odd, the motion of the follower will be same as that of the driver.
Yes
No

4. When a body is subjected to longitudinal vibrations, the stress induced in a body will be tensile or compressive stress.
Correct
Incorrect

5. The centre of suspension and centre of percussion are not interchangeable.
Correct
Incorrect

6. When the tip of a tooth undercuts the root on its mating gear, it is known as interference.
Agree
Disagree

7. The pressure angle for involute gears depends upon the size of teeth.
Right
Wrong

8. The addendum is the radial distance of tooth from the pitch circle to the top of the tooth.
Agree
Disagree

9. The ratio of the pitch circle diameter in millimeters to the number of teeth is called circular pitch.
Yes
No

10. The angle which the normal reaction makes with the resultant reaction is called angle of friction.
Agree
Disagree

11. The rolling of a complete ship sideways is known as pitching of a ship.
True
False

12. In order to have a good grip on the pulley, the V-belt should touch the bottom of the groove in the pulley.
True
False

13. The primary unbalanced force is more than the secondary unbalanced force.
True
False

14. The angle of the inclined plane at which the body just begins to slide down the plane, is called helix angle.
Right
Wrong

15. A chain consisting of four links and four joints is called a kinematic chain.
Yes
No

16. In a force-closed pair, the two elements of a pair are not held together mechanically.
Agree
Disagree

17. The ratio of the actual damping coefficient to the critical damping coefficient is called damping factor.
Yes
No

18. Whitworth quick return motion mechanism consists of three turning pairs and one sliding pair.
Right
Wrong

19. The coefficient of fluctuation of energy is the ratio of maximum energy to the minimum energy.
True
False

20. The wear of bearing is proportional to velocity and pressure.
Yes
No

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