Mechanical Engineering Quiz - Set 11 - ObjectiveBooks

Mechanical Engineering Quiz - Set 11

Quiz Questions

01. A mechanism consisting of more than four links is called a compound mechanism.

02. A pressure vessel is said to be a thin shell, if the ratio of wall thickness to its diameter is equal to 1/10.

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

04. 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.

05. The specific weight is also known as weight density.

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

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

08. 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 metre.

09. When the Mach number is equal to unity, the flow is called sonic flow.

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

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

12. A long delay period in compression ignition engines gives a more rapid rise in pressure which causes knocking.

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

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

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

16. The swing diameter over carriage is always less than the swing diameter over bed.

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

18. The sensible heat during humidification process decreases.

19. Steam engines are called external combustion engines.

20. Turbulent flow takes place at high velocities.

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