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Mechanical Engineering Quiz 34

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Mechanical Engineering Quiz 34

1 / 50

Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value ___________________?

2 / 50

Balls for ball bearings are made of_________________?

3 / 50

The output of a diesel engine can be increased without increasing the engine revolution or size in following way_________________?

4 / 50

The power available for take off and climb in case of turbojet engine as compared to reciprocating engine is ___________________?

5 / 50

Efficiency of a Carnot engine is given as 80%. If the- cycle direction be reversed, what will be the value of COP of reversed Carnot cycle_________________?

6 / 50

Lower pairs are those which have___________________?

7 / 50

Ignition timing of a multicylider petrol engine can be adjusted by_________________?

8 / 50

Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is_________________?

9 / 50

The property of fluid by virtue of which it offers resistance to shear is called________________?

10 / 50

The unit of length in S.I. units is________________?

11 / 50

The major axis of elliptical manholes on the shell should be provided___________________?

12 / 50

A 75 cc engine has following parameter as 75 cc ___________________?

13 / 50

Which is the false statement about the properties of instantaneous center____________________?

14 / 50

All the terms of energy in Bernoulli?s equation have dimension of_______________?

15 / 50

The vapour pressure over the concave surface is______________________?

16 / 50

Rupture stress is________________?

17 / 50

Addition of copper to aluminium results in_____________________?

18 / 50

In the equation of virtual work, following force is neglected_______________________?

19 / 50

The basis for measuring thermodynamic property of temperature is given by___________________?

20 / 50

Rivets are generally specified by_______________?

21 / 50

High specific speed of turbine implies it is__________________?

22 / 50

The termal efficiency of a petrol engine at design load is around_________________?

23 / 50

A riveted joint in which the number otrivets decrease from innermost to outer most row is called__________________?

24 / 50

Tensile strength of a mild steel specimen can be roughly predicted from following hardness test_________________?

25 / 50

Statistical quality control techniques are based on the theory of___________________?

26 / 50

Casting of a centrifugal pump is designed so as to minimize________________?

27 / 50

The safe twisting moment for a compound shaft is equal to the _________________?

28 / 50

The flow in which conditions do not change with time at any point, is known as_________________?

29 / 50

Inter cooling in compressors__________________?

30 / 50

The crest diameter of a screw thread is same as _____________________?

31 / 50

Foundry crucible is made of_________________?

32 / 50

Water contained in a beaker can be made to boil by passing steam through it__________________?

33 / 50

The type of coupling used to join two shafts whose axes are neither in same straight line nor parallel, but intersect is______________________?

34 / 50

The ultimate analysis of fuel lists _____________________?

35 / 50

Enriched uranium is one in which__________________?

36 / 50

The leaks in a refrigeration system using Freon are detected by____________________?

37 / 50

In the case of compression ignition engine, the %age of CO in exhaust gases is________________?

38 / 50

Emissivity of a white polished body in comparison to a black body is________________?

39 / 50

Which of the following layouts is suited to job production__________________?

40 / 50

Normal heptane_______________?

41 / 50

For an irreversible gas turbine cycle, the efficiency and work ratio both depend on___________________?

42 / 50

The simplex method is the basic method for__________________?

43 / 50

Boyle?s law i.e. pV = constant is applicable to gases under ___________________?

44 / 50

The work ratio of simple gas turbine cycle depends on_________________?

45 / 50

The forces, which meet at one point, but their lines of action do not lie in a plane, are called_________________?

46 / 50

To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use__________________?

47 / 50

PERT stands for k (fit) project evaluation and review technique__________________?

48 / 50

The capacity of compressor will be highest when its intake temperature is___________________?

49 / 50

Isothermal compression though most efficient, but is not -practicable because_________________?

50 / 50

In an ideal machine, the output as compared to input is_______________?

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