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