Mechanical Engineering Quiz 5

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Mechanical Engineering Quiz 5

1 / 50

The water tubes in a babcock and wilcox boiler are__________________?

2 / 50

The condition of steam in boiler drum is always ___________________?

3 / 50

A safety valve in a locomotive starts leaking. The leaking medium will be_________________?

4 / 50

Higher pairs are those which have_________________?

5 / 50

The flow rate in gear pump___________________?

6 / 50

The m.e.p. of a diesel cycle having fixed compression ratio with increase in cut-off will_________________?

7 / 50

Vapor compression refrigeration is some what like ____________________?

8 / 50

Cam angle is defined as the angle_________________?

9 / 50

T Jie horse power transmitted by a belt is dependent upon _________________?

10 / 50

Adiabatic process is________________?

11 / 50

The pistons are usually given a coating such as tin plating in order to________________?

12 / 50

Pick up the wrong statement about water tube boiler in comparison to fire tube boilers ______________________?

13 / 50

Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one___________________?

14 / 50

Thermal efficiency of a thermal power plant is of the order of___________________?

15 / 50

A cycle consisting of two adiabatics and two constant pressure processes is known as___________________?

16 / 50

A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of___________________?

17 / 50

Kinetic theory of gases assumes that the collisions between the molecules are________________?

18 / 50

In a refrigeration system, heat absorbed in comparison to heat rejected is_________________?

19 / 50

Fatigue strength can be increased by__________________?

20 / 50

Guest?s theory of failure is applicable for following type of materials_________________?

21 / 50

Super heating in a refrigeration cycle __________________?

22 / 50

The tendency of a liquid surface to contract is due to the following property_____________?

23 / 50

Piston rings are usually made of___________________?

24 / 50

The building up of worn and uridersized parts, subjected to repeated loads by electroplating is_____________________?

25 / 50

For low speed operation or for idling in petrol engines, the engine requirements are for_______________?

26 / 50

The value of modulus of elasticity for mild steel is of the order of________________?

27 / 50

Which of the following is not an interns combustion engine___________________?

28 / 50

For slow-speed large capacity compressor, following type of valve will be best suited________________?

29 / 50

Tensile strength of a material is obtained by dividing the maximum load during the test by the_________________?

30 / 50

Bell metal contains_____________________?

31 / 50

Gas turbines for power generaion are normally used___________________?

32 / 50

A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to_________________?

33 / 50

The evolution of heat of solution takes place in ammonia absorption plant when _____________________?

34 / 50

A metal with specific gravity of o floating in a fluid of same specific gravity a will____________________?

35 / 50

Brayton cycle consists? of following four processes____________________?

36 / 50

The upper surface of a weir over which water flows is known is_____________________?

37 / 50

The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor and turine and fixed higher and lower temperature) with increase in pressure ratio will___________________?

38 / 50

Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system ?

39 / 50

The dry saturated steam at very low pressure, (5-10 kg/cm2) when throttled to atmosphere will become________________?

40 / 50

Separators in compressor installations are located_____________________?

41 / 50

In turbo fan engine, the jet velocity as compared to turbo-jet engine is_________________?

42 / 50

Value engineering aims at finding out the________________?

43 / 50

If overhead clearance is less, then the following type of engine should be selected__________________?

44 / 50

Surface energy per unit area of a surface is numerically equal to _____________________?

45 / 50

According to principle of moments__________________?

46 / 50

Saving of work done and power by fitting an air vessel to single acting reciprocating pump is of the order of__________________?

47 / 50

The vloumetric efficiency of compressor with increase in compression ratio will ___________________?

48 / 50

PERT analysis is based on____________________?

49 / 50

According to Kennedy?s theorem, if three bodies have plane motions, their instantaneous centers lie on___________________?

50 / 50

Malleable cast iron _________________?

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