Mechanical Engineering Quiz - Set 20


1. Most of the engines, generally, do not require balancing of secondary forces and couples.
Right
Wrong

2. Cemented carbide tools are generally poor in shear.
Yes
No

3. A closed cycle gas turbine works on Joule's cycle.
True
False

4. A single stage turbine is not used because it requires large reduction gearing due to very high rotational speed.
Agree
Disagree

5. A non-reversible machine is also called a self-locking machine.
Disagree
Agree

6. In welding aluminium with TIG arc welding, alternating current is used.
Correct
Incorrect

7. The motion of the body from one extremity to the other is known as a beat.
Disagree
Agree

8. A railway bridge is an example of a machine.
True
False

9. Mild steel during machining produces _________ chips.
Continuous
Discontinuous

10. It is _________ to make an engine working on a Carnot cycle.
Possible
Impossible

11. The loss of kinetic energy during elastic impact is zero.
Disagree
Agree

12. In petrol engines, using a fixed octane rating fuel, the increase in engine speed will decrease the knocking tendency.
Yes
No

13. The turbine blades do not change the direction of steam issuing from the nozzle.
True
False

14. The uniform pressure theory gives a higher frictional torque than the uniform wear theory.
Agree
Disagree

15. The centre of gravity of a rectangle lies at a point where its two diagonals meet each other.
Disagree
Agree

16. The pressure of steam at throat of a steam nozzle is called critical pressure.
Agree
Disagree

17. The in-feed grinding is similar to plunge grinding.
Yes
No

18. The amount, by which the outer edge of the rail is raised, is known as super-elevation.
Disagree
Agree

19. The two rolls in a two high rolling mills are of ________ size.
Equal
Different

20. A pendulum type governor is a Watt governor.
Agree
Disagree

     Score =

Correct answers:

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