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Mechanical Engineering Quiz 12

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Mechanical Engineering Quiz 12

1 / 50

Change in enthalpy of a system is the heat supplied at___________________?

2 / 50

If petrol is used in a diesel engine, then______________?

3 / 50

On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by_______________?

4 / 50

Specific heat of air at constant pressure is equal to___________________?

5 / 50

If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water________________?

6 / 50

The main interest of shielding in nuclear reactor is protection against_______________?

7 / 50

A fast breeder reactor uses following as fuel_________________?

8 / 50

Which is the false statement about wrought iron. It has________________?

9 / 50

Points of arrest for iron correspond to__________________?

10 / 50

The jnaximum combustion pressure in gas turbine as compared to I.C engine is_________________?

11 / 50

In a free vortex motion, the radial component of velocity everywhere is________________?

12 / 50

True one-dimensional flow occurs when_________________?

13 / 50

For pipes, laminar flow occurs when Roynolds number is__________________?

14 / 50

In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia of rivet d should be equal to__________________?

15 / 50

Working principle of dead weight pressure gauge tester is based on_______________?

16 / 50

Induction hardening is the process of_____________________?

17 / 50

Which of the following cycles uses air as the refrigerant__________________?

18 / 50

The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called__________________?

19 / 50

The example of higher pair is_________________?

20 / 50

Specific weight of water in S.I. units is equal to ________________?

21 / 50

Thermal conductivity of glass-wool varies from sample to sample because of variation in ________________ ?

22 / 50

If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its__________________?

23 / 50

Stefan Boltzmann law is applicable for heat transfer by __________________?

24 / 50

Which of the following instrument can be used for measuring speed of a submarine moving in deep sea__________________?

25 / 50

Ultimate analysis of fuel is determination of percentage of____________________?

26 / 50

The coefficient of performance is the ratio of the refrigerant effect to the_________________?

27 / 50

According to fan laws, at constant speed and capacity, the pressure and power vary_____________________?

28 / 50

Shear stress induced in a shaft subjected to tension will be__________________?

29 / 50

If value of n is infinitely large in a polytropic process pV? = C, then the process is known as constant_____________________?

30 / 50

Which is not correct statement about effect of sulphur in fuel ___________________?

31 / 50

The proximate analysis of fuel lists__________________?

32 / 50

Applications in which stresses are encountered in one direction only uses following type of threads____________________?

33 / 50

The number of centers in a crank driven slider crank mechanism are_______________?

34 / 50

Diesel engines as compared to petrol engines require ______________________?

35 / 50

Which of the following is used for bearing liner_______________?

36 / 50

The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be________________?

37 / 50

When the flow parameters at any given instant remain same at every point, then flow is said to be___________________?

38 / 50

A circular bar moving in a round hole is an example of_______________?

39 / 50

If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm?, the pressure at a depth of 50 m below the oil surface will be_________________?

40 / 50

The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be ________________?

41 / 50

Peaucellier mechanism has__________________?

42 / 50

Volumetric efficiency of a compressor without clearance volume________________?

43 / 50

For pipes, turbulent flow occurs when Reynolds number is _____________________?

44 / 50

A reactor capable of converting a ferrite material into fissile isotopes is called____________________?

45 / 50

In a darg link quick return mechanism, the shortest link is always fixe The sum of the shortest and longest link is _______________?

46 / 50

The difference between cornish boiler and lancashire boiler is that_________________?

47 / 50

The COP of a vapor compression plant in comparison to vapor absorption plant is ________________?

48 / 50

Carbonation of coal is the process of________________________?

49 / 50

The stress induced in a body due to suddenly applied load compared to when it is applied gradually is________________?

50 / 50

In loop scavenging, the top of the piston is________________?

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