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Mechanical Engineering Quiz 22

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Mechanical Engineering Quiz 22

1 / 50

Cylinder clearance in a compressor should be _________________?

2 / 50

At critical point, i.e. p=225.65 kg/cm2, the latent enthalpy of vaporisation is______________?

3 / 50

The latent heat of steam with increase of pressure__________________?

4 / 50

The specific fuel consumption per BH hour for a petrol engine is approximately__________________?

5 / 50

Shaft revolving in a bearing is the following type of pair________________?

6 / 50

Pick up the wrong statement ?

7 / 50

Heat conducted througfi unit area and unit thick face per unit time when temperature difference between opposite faces is unity,is called__________________?

8 / 50

What is the most common valve used in piping systems to throttle or regulate flow ?

9 / 50

The percentage of carbon in pig iron varies from___________________?

10 / 50

If TL is the largest allowable event occurrence time, total activity slack (s) is equal to__________________?

11 / 50

The endurance limit of a material with finished surface in comparison to rough surface is_________________?

12 / 50

Specific weight of sea water is more that of pure water because it contains_________________?

13 / 50

The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm?. The pressure at 2.5 m below the oil surface will be __________________?

14 / 50

Moisture would find its way into insulation by vapour pressure unless it is prevented by __________________ ?

15 / 50

Addition of lead and bismuth to aluminium results in_________________?

16 / 50

Graphical method, simplex method, and transportation method are concerned with__________________?

17 / 50

Absorptivity of a body will be equal to its emissivity___________________?

18 / 50

A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ?

19 / 50

The center of percussion of a solid cylinder of radius r resting on a horizontal plane will be_________________?

20 / 50

Cetane number is determined by comparing the performance of diesel oil with the following hydrocarbons___________________?

21 / 50

Compression efficiency is compared against_____________________?

22 / 50

The coefficient of friction depends on________________?

23 / 50

The rise or depression of liquid in a tube due to surface tensionwim increase in size of tube will________________?

24 / 50

The time by which the activity completion time can be delayed without affecting the start of succeeding activities, is Known as_________________?

25 / 50

Criticalpath on PERT/CPM chart is obtained by joining the events having____________________?

26 / 50

The air requirement of a petrol engine during starting compared to theoretical airequired for complete combustion is___________________?

27 / 50

Otto cycle consists of following four processes____________________?

28 / 50

If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be_________________?

29 / 50

Pick up the incorrect statement about advantages of work sampling_________________?

30 / 50

Recrystallisation temperature can belowered by_________________?

31 / 50

One barometric pressure or 1 atmospheric pressure is equal to___________________?

32 / 50

The term N.T.P. stands for________________________?

33 / 50

The function of injector used in small capacity boilers is to____________________?

34 / 50

Choose the wrong statement?

35 / 50

A non-dimensional number generally associated with natural convection heat transfer is________________?

36 / 50

In S.H.M., the velocity vector w.r.t. displacement vector _________________?

37 / 50

In spot welding, the spacing between two spot weld should not be less than _______________?

38 / 50

Transmission of power from the engine to the rear axle of an automobile is by means of___________________?

39 / 50

The essential equipment for producing high vlotage for sparking in petrol engines with battery is_______________?

40 / 50

Enriched uranium may contain fissionable contents of the order of__________________?

41 / 50

Which of the following mechanism is obtained from lower pair________________?

42 / 50

the chain is unconstrained when_____________?

43 / 50

Sublimation region is the region where__________________?

44 / 50

Steel contains____________________?

45 / 50

Argentite is the principal ore or raw material for _________________?

46 / 50

Governor is used in automobile to_______________?

47 / 50

Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio _____________________?

48 / 50

Auto-ignition temperature is____________________?

49 / 50

The function of a washer is to___________________?

50 / 50

Flash point of fuel oil is __________________?

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