Mechanical Engineering Quiz 12
1 / 50
Change in enthalpy of a system is the heat supplied at___________________?
2 / 50
Applications in which stresses are encountered in one direction only uses following type of threads____________________?
3 / 50
In loop scavenging, the top of the piston is________________?
4 / 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__________________?
5 / 50
Carbonation of coal is the process of________________________?
6 / 50
Ultimate analysis of fuel is determination of percentage of____________________?
7 / 50
A circular bar moving in a round hole is an example of_______________?
8 / 50
Induction hardening is the process of_____________________?
9 / 50
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be________________?
10 / 50
Specific heat of air at constant pressure is equal to___________________?
11 / 50
True one-dimensional flow occurs when_________________?
12 / 50
Which of the following is used for bearing liner_______________?
13 / 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 ________________?
14 / 50
For pipes, laminar flow occurs when Roynolds number is__________________?
15 / 50
The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called__________________?
16 / 50
The stress induced in a body due to suddenly applied load compared to when it is applied gradually is________________?
17 / 50
A fast breeder reactor uses following as fuel_________________?
18 / 50
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea__________________?
19 / 50
The difference between cornish boiler and lancashire boiler is that_________________?
20 / 50
Diesel engines as compared to petrol engines require ______________________?
21 / 50
If value of n is infinitely large in a polytropic process pV? = C, then the process is known as constant_____________________?
22 / 50
Stefan Boltzmann law is applicable for heat transfer by __________________?
23 / 50
Working principle of dead weight pressure gauge tester is based on_______________?
24 / 50
In a darg link quick return mechanism, the shortest link is always fixe The sum of the shortest and longest link is _______________?
25 / 50
Thermal conductivity of glass-wool varies from sample to sample because of variation in ________________ ?
26 / 50
Points of arrest for iron correspond to__________________?
27 / 50
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water________________?
28 / 50
Which of the following cycles uses air as the refrigerant__________________?
29 / 50
A reactor capable of converting a ferrite material into fissile isotopes is called____________________?
30 / 50
Which is not correct statement about effect of sulphur in fuel ___________________?
31 / 50
According to fan laws, at constant speed and capacity, the pressure and power vary_____________________?
32 / 50
If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its__________________?
33 / 50
For pipes, turbulent flow occurs when Reynolds number is _____________________?
34 / 50
The jnaximum combustion pressure in gas turbine as compared to I.C engine is_________________?
35 / 50
The main interest of shielding in nuclear reactor is protection against_______________?
36 / 50
The proximate analysis of fuel lists__________________?
37 / 50
The example of higher pair is_________________?
38 / 50
On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by_______________?
39 / 50
If petrol is used in a diesel engine, then______________?
40 / 50
Peaucellier mechanism has__________________?
41 / 50
Shear stress induced in a shaft subjected to tension will be__________________?
42 / 50
The number of centers in a crank driven slider crank mechanism are_______________?
43 / 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_________________?
44 / 50
Which is the false statement about wrought iron. It has________________?
45 / 50
When the flow parameters at any given instant remain same at every point, then flow is said to be___________________?
46 / 50
In a free vortex motion, the radial component of velocity everywhere is________________?
47 / 50
The coefficient of performance is the ratio of the refrigerant effect to the_________________?
48 / 50
The COP of a vapor compression plant in comparison to vapor absorption plant is ________________?
49 / 50
Specific weight of water in S.I. units is equal to ________________?
50 / 50
Volumetric efficiency of a compressor without clearance volume________________?
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