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Mechanical Engineering Quiz 22

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Mechanical Engineering Quiz 22

1 / 50

Sublimation region is the region where__________________?

2 / 50

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

3 / 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 __________________?

4 / 50

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

5 / 50

Argentite is the principal ore or raw material for _________________?

6 / 50

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

7 / 50

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

8 / 50

the chain is unconstrained when_____________?

9 / 50

The term N.T.P. stands for________________________?

10 / 50

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

11 / 50

Auto-ignition temperature is____________________?

12 / 50

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

13 / 50

One barometric pressure or 1 atmospheric pressure is equal to___________________?

14 / 50

Addition of lead and bismuth to aluminium results in_________________?

15 / 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_________________?

16 / 50

Which of the following mechanism is obtained from lower pair________________?

17 / 50

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

18 / 50

The percentage of carbon in pig iron varies from___________________?

19 / 50

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

20 / 50

Choose the wrong statement?

21 / 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 ?

22 / 50

Recrystallisation temperature can belowered by_________________?

23 / 50

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

24 / 50

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

25 / 50

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

26 / 50

Absorptivity of a body will be equal to its emissivity___________________?

27 / 50

The coefficient of friction depends on________________?

28 / 50

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

29 / 50

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

30 / 50

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

31 / 50

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

32 / 50

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

33 / 50

Compression efficiency is compared against_____________________?

34 / 50

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

35 / 50

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

36 / 50

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

37 / 50

Otto cycle consists of following four processes____________________?

38 / 50

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

39 / 50

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

40 / 50

Flash point of fuel oil is __________________?

41 / 50

Steel contains____________________?

42 / 50

The function of a washer is to___________________?

43 / 50

Cylinder clearance in a compressor should be _________________?

44 / 50

Pick up the incorrect statement about advantages of work sampling_________________?

45 / 50

Governor is used in automobile to_______________?

46 / 50

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

47 / 50

Enriched uranium may contain fissionable contents of the order of__________________?

48 / 50

The latent heat of steam with increase of pressure__________________?

49 / 50

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

50 / 50

Pick up the wrong statement ?

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