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Mechanical Engineering Quiz 15

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Mechanical Engineering Quiz 15

1 / 50

The alloy used for making electrical resistances and heating elements is____________________?

2 / 50

Coefficient of friction is the_________________?

3 / 50

Railway rails are normally made of_______________?

4 / 50

Which of the following plants is smallest and lightest for genrating a given amount of power__________________?

5 / 50

A centrifugal compressor works on the principle of__________________?

6 / 50

The energy distribution of an ideal reflector at higher temperatures is largely in the range of ___________________?

7 / 50

For steel, the ultimate strength in shear as compared to ultimate strength in tension is ___________________?

8 / 50

The working fluid in ai turbine is___________________?

9 / 50

String diagram is used_________________?

10 / 50

To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than____________________?

11 / 50

The pressure at the end of compression in the case of diesel engine is of the order of___________________?

12 / 50

The risk of radioactive hazard is greatest in the turbine with following reactor___________________?

13 / 50

The property of a fluid which enables it to resist tensile stress is known as___________________?

14 / 50

According to fan laws, for fans having constant wheel diameter, the pressure varies________________?

15 / 50

The product of either force of couple with the arm of the couple is called_________________?

16 / 50

The Klein?s method of construction for reciprocating engine mechanism _______________?

17 / 50

In V-belt drive, belt touches______________?

18 / 50

The Scott-Russell mechanism consists of_________________?

19 / 50

According to Rowan plan, if H = hourly rate, A = actual time and S = standard time, then wages will be___________________?

20 / 50

Pick up wrong statement about desired properties of a good fuel__________________?

21 / 50

Fourier?s law of heat conduction is valid for_________________?

22 / 50

A body floats in stable equilibrium ____________________?

23 / 50

The maximum frictional force which comes into play when a body just begins to slide over another surface is called________________?

24 / 50

The specific volume of steam with increase in pressure decreases_____________________?

25 / 50

Muntz metal contains copper and zinc in the ratio of________________?

26 / 50

A standard ice point temperature corresponds to the temperature of ___________________?

27 / 50

Ammonia-absorption refrigeration cycle requires__________________?

28 / 50

Boiler stays are used to___________________?

29 / 50

The rated life of a bearing varies___________________?

30 / 50

When two springs are in series (having stiffness K), the equivalent stiffness will be________________?

31 / 50

A perfect black body is one which_______________?

32 / 50

In riveted boiler joints, all stresses, shearing, bearing and tensile are based on the_________________?

33 / 50

Characteristic gas constant of a gas is equal to______________________?

34 / 50

In vapor compression cycle, the condition of refrigerant is very wet vapor________________?

35 / 50

The main purpose of reheating in gas turbine is to__________________?

36 / 50

Corrosion resistance of steel is increased by addition of________________?

37 / 50

The technique of value analysis can be applied to____________________?

38 / 50

Diesel cycle consists of following four processes_________________?

39 / 50

A point on a link connecting double slider crank chain traces a____________________?

40 / 50

The work ratio of a gas turbine plant is defined as the ratio of__________________?

41 / 50

Most high speed compression engines operate on __________________?

42 / 50

Reversed joule cycle is called_________________?

43 / 50

An ideal air compressor cycle with clearance on p-v diagram can be represented by following processes_______________?

44 / 50

The basic difference between PERT and CPM is that_____________?

45 / 50

To avoid moisture troubles, the branch connections from compressed air lines should be taken from_________________?

46 / 50

Thermal conductivity of water in general with rise in temperature ____________________?

47 / 50

Adiabatic compression is one in which___________________?

48 / 50

On Mollier chart, flow through turbine is represented by ________________?

49 / 50

The safety valve on boiler drum compared to safety valve on super heater is set at ________________?

50 / 50

The evaporation of 15.653 kg of water per hour from and at 100?C is called_________________?

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