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Mechanical Engineering Quiz 25

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Mechanical Engineering Quiz 25

1 / 50

Queuing theory is used for____________________?

2 / 50

If the radius of wire stretched by a load is doubled, then its Young?s modulus will be_______________?

3 / 50

The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called_______________?

4 / 50

Hardness of steel depends on_________________?

5 / 50

The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy-diagram represents_____________________?

6 / 50

In nitrated parts, the origins of the fatigue cracks will occur at__________________?

7 / 50

A mechanism is an assemblage of ____________________?

8 / 50

Expanding steam to a very low pressure (high vacuum) in steam engines is _________________?

9 / 50

1 kg.m is equal to_________________?

10 / 50

In heat transfer, conductance equals conductivity (kcal/hr/sqm/?C/cm) divided by ________________?

11 / 50

An ideal regenerative cycle is ______________________?

12 / 50

The reasons which are basically responsible for the formation of a queue should be that ___________________?

13 / 50

The air-fuel ratio in petrol engines-is controlled by__________________?

14 / 50

Stoichiometric quantity of air is the___________________?

15 / 50

Which of the following is the case of heat transfer by radiation ___________________?

16 / 50

In diesel engine, the compression ratio in comparison to expansion ratio is_______________?

17 / 50

When a reactor becomes critical, then the production of neutrons is_________________?

18 / 50

Choose the correct statement?

19 / 50

Sulphur in steel________________?

20 / 50

Pressure ratio in gas turbines is the ratio of ____________________?

21 / 50

The C.G. of a plane lamina will not be at its geometrical centre in the case of a __________________?

22 / 50

Extensive property of a system is one whose value______________________?

23 / 50

Barometer is used to measure__________________?

24 / 50

The machinability of steel is increased by___________________?

25 / 50

The mathematical technique for finding the best use of limited resources in an optimum manner is known as___________________?

26 / 50

Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be_______________?

27 / 50

The notch angle of the Izod impact test specimen is________________?

28 / 50

For measuring flow by a venturimeter, if should be installed in __________________?

29 / 50

The difference between the time available to do the job and the time required to do the job, is known as_________________?

30 / 50

Which of the following manometer has highest sensitivity_________________?

31 / 50

If a spring is cut down into two springs, the stiffness of cut springs will be _________________?

32 / 50

Maximum percentage of carbon in ferrite is___________________?

33 / 50

Diesel fuel, compared to petrol is_________________?

34 / 50

Which is false statement about case hardening. Case hardening is done by_______________?

35 / 50

Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts___________________?

36 / 50

Energy can neither be created nor destroyed but can be converted from one form to other is inferred from_________________?

37 / 50

Standard air is the air at_____________________?

38 / 50

The edges of a boiler plate are bevelled to an angle of______________?

39 / 50

If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be________________?

40 / 50

Admiralty gun metal contains__________________?

41 / 50

Gun metal contains__________________?

42 / 50

Cooling water is required for following equipment in ammonia absorption plant__________________?

43 / 50

In detennining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than____________________?

44 / 50

Choose the wrong statement?

45 / 50

Elements of pairs held together mechanically is known as ___________________?

46 / 50

The effort required to lift a load W on a screw jack with helix angle a and angle of friction

47 / 50

The permissible stress for carbon steel under static loading is generally taken as__________________?

48 / 50

Kinetic energy of the molecules in terms of absolute temperature (T) is proportional to________________?

49 / 50

In above example, the minimum length of the coupler will be__________________?

50 / 50

The discharge through a reaction turbine with increase in unit speed____________________?

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