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Mechanical Engineering Quiz 40

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Mechanical Engineering Quiz 40

1 / 50

Spring index is___________________?

2 / 50

Which place in hydraulic turbine is most susceptible for cavitation __________________?

3 / 50

Following elements have face-centred cubic structure__________________?

4 / 50

The algebraic sum of moments of the forces forming couple about any point in their plane is__________________?

5 / 50

Pure iron is the structure of_______________?

6 / 50

Transverse fillet welded joints are designed for________________?

7 / 50

For speed above 3000 km/hour, it is more advantageous to use____________________?

8 / 50

Hygrometery deals with the_________________?

9 / 50

Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of_______________?

10 / 50

Deformation per unit length in the direction of force is known as_________________?

11 / 50

The closed cycle in gas turbines_________________?

12 / 50

If the temperature of a solid surface changes form 27?C to 627?C, then its emissive power changes in the ratio of___________________?

13 / 50

The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is_________________?

14 / 50

In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than_______________?

15 / 50

The radius of a dished head is taken approximately as______________________?

16 / 50

The percentage reduction in area of a cast iron specimen during tensile test would be of the order of_________________?

17 / 50

O on a PERT/CPM chart represents____________________?

18 / 50

The maximum propulsion efficiency of a turbojet is attained at around following speed __________________?

19 / 50

Standing orders which are statutory are applicable to__________________?

20 / 50

Kinematic viscosity is dependent upon__________________?

21 / 50

Activity s,lack or float of any event on a PERT/CPM chart is represented by__________________?

22 / 50

Moisture in freon refrigeration system causes________________?

23 / 50

PERT and CPM are__________________?

24 / 50

A CPM family includes____________________?

25 / 50

The ratio of the energy absorbed by the body to total energy falling on it is called_________________?

26 / 50

Which of the following instrument can be used for measuring speed of an aeroplane___________________?

27 / 50

A tapered key which fits in a keyway in the hub and is flat on the shaft, is known as___________________?

28 / 50

According of Kirchhoff?s law______________________?

29 / 50

The tendency of a body to resist change from rest or motion is known as_______________?

30 / 50

The insulation ability of an insulator with the presence of moisture would_________________?

31 / 50

If two equal forces of magnitude P act at an angle 9?, their resultant will be________________?

32 / 50

Cemented carbide tools are not found to be suitable for cutting_______________?

33 / 50

If the rivets in adjacent rows are staggered and the outermost row has only one rivet, the arrangement of the rivets is called__________________?

34 / 50

The fuel air ratio in a petrol engine fitted with suction carburettor, operating with dirty air filter as compared to clean filter will be________________?

35 / 50

According to Prevost theory of heat exchange ___________________?

36 / 50

Hardness of martensite is about___________________?

37 / 50

Work study is most useful_______________?

38 / 50

Propulsion efficiency of the following order-is obtained in practice _______________?

39 / 50

According to kinetic theory of gases, the absolute zero temperature is attained when___________________?

40 / 50

The property of a material by virtue of which a body returns to its original, shape after removal of the load is called____________________?

41 / 50

In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by_________________?

42 / 50

Falling drops of water become spheres due to the property of ____________________?

43 / 50

In a fission process, maximum %age of energy is released as___________________?

44 / 50

The purpose of a link is to________________?

45 / 50

In a centrifugal pump, the liquid enters the pump__________________?

46 / 50

A milestone chart_______________________?

47 / 50

Gardually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of__________________?

48 / 50

For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of _________________?

49 / 50

The overall efficiency of thermal power plant is________________?

50 / 50

Stress concentration in cyclic loading is more serious in__________________?

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