Mechanical Engineering Quiz - Set 11


1. A mechanism consisting of more than four links is called a compound mechanism.
True
False

2. A pressure vessel is said to be a thin shell, if the ratio of wall thickness to its diameter is equal to 1/10.
Yes
No

3. The wave length of the radiation emitted depends only on the temperature and is independent of the material of the body.
True
False

4. In an ordinary bolt, the effect of the impulsive loads applied axially is concentrated on the cross-sectional area at the root of the threads.
Yes
No

5. The specific weight is also known as weight density.
Correct
Incorrect

6. The centre of gravity of a triangle lies at a point where its medians intersect each other.
False
True

7. The frictional torque transmitted in a multi collared shaft is same as that of a single collared shaft.
Right
Wrong

8. The specific speed of a centrifugal pump may be defined as the speed of an imaginary pump, identical with the given pump, which will discharge one litre of water, while it is being raised through a head of one meter.
True
False

9. When the Mach number is equal to unity, the flow is called sonic flow.
True
False

10. The cylinder of a gas engine is made _________ than that of the petrol engine.
Smaller
Larger

11. The sliding pairs, turning pairs and screw pairs form lower pairs.
True
False

12. A long delay period in compression ignition engines gives a more rapid rise in pressure which causes knocking.
Yes
No

13. In a leaf spring, the length of all the leaves are equal.
True
False

14. The coefficient of restitution for elastic bodies is one.
Correct
Incorrect

15. A notch is, usually, made of a metallic plate.
Correct
Incorrect

16. The swing diameter over carriage is always less than the swing diameter over bed.
Yes
No

17. In a shaper mechanism, the Coriolis component of acceleration does not exist.
True
False

18. The sensible heat during humidification process decreases.
True
False

19. Steam engines are called external combustion engines.
Yes
No

20. Turbulent flow takes place at high velocities.
Agree
Disagree

     Score =

Correct answers:

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