Fuels and Combustion Quiz 5
1 / 50
Incomplete combustion of fuel in the furnace is judged by high ______ of the flue gases?
2 / 50
In flue gas analysis by Orsat?s apparatus, oxygen is absorbed by______?
3 / 50
Insitu theory and drift theory are related to the______?
4 / 50
Lurgi coal gasifier is a pressurised _______ bed reactor?
5 / 50
Initial pressure of oxygen introduced into the ?bomb? of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around ______ atm?
6 / 50
In general, the limit of inflammability/explosion limit of fuel gases is widened by the___________?
7 / 50
Low temperature carbonisation of coal takes place at _______ ?C?
8 / 50
Largest constituent of blast furnace gas is___________?
9 / 50
Mineral matter content (M) and ash content A. in coal are approximately related as ________?
10 / 50
Junker?s calorimeter is used to determine the calorific value of________?
11 / 50
Light oil whose major component is Benzol, is obtained by the distillation of crude tar in the temperature range of ______ ?C?
12 / 50
Low temperature oxidation of coal during storage does not decrease its___________?
13 / 50
Naphthalene is removed from coke oven gas by_________?
14 / 50
Main use of soft coke is as ________ fuel?
15 / 50
Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called__________?
16 / 50
In Lurgi coal gasifier_____?
17 / 50
Main constituents of purified Lurgi gas are_____?
18 / 50
In flue gas analysis by Orsat?s apparatus, carbon dioxide is absorbed by________?
19 / 50
Kopper-Totzek coal gasifier__________?
20 / 50
Low temperature oxidation of coal is accelerated by the______?
21 / 50
Low temperature carbonisation of coal produces__________?
22 / 50
In high temperature carbonisation (as compared to low temperature carbonisation) of coal_____?
23 / 50
Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is ___________?
24 / 50
Ionisation potential applied across the electrodes of electrostatic tar precipitator is around_______?
25 / 50
In Orsat?s apparatus, ammoniacal cuprous chloride is used for selectivity absorbing_________?
26 / 50
Mineral matter, ?M? and ash percentage ?A? in coal are roughly related as________?
27 / 50
Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces ___________?
28 / 50
Lignite is _____?
29 / 50
In low temperature carbonisation (as compared to high temperature carbonisation) of coal___________?
30 / 50
Low temperature oxidation of stored coal results in the_________?
31 / 50
In high temperature carbonisation of coal compared to low temperature carbonisation ?
32 / 50
Main constituents of Benzol are ______?
33 / 50
Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if ___________?
34 / 50
Low temperature oxidation of coal resulting from bad storage conditions does not decrease its________?
35 / 50
Largest constituent of coke oven gas is__________?
36 / 50
KOH solution used in Orsat apparatus absorbs______?
37 / 50
L.D. converter gas (produced in steel plant) comprises mainly of _____?
38 / 50
Main constituent of the gas produced from a gobar gas plant is_____?
39 / 50
Main constituent of natural gas is _________?
40 / 50
Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an _______ bed gasifier?
41 / 50
In low temperature carbonisation of coal, the_________?
42 / 50
Incomplete combustion of a fuel is characterised by the high ________ in the flue gas?
43 / 50
Increase in ash content of blast furnace coke__________?
44 / 50
In flue gas analysis by Orsat?s apparatus, carbon monoxide is absorbed by___________?
45 / 50
Moisture loss is determined by the _________?
46 / 50
Laboratory gas is obtained by the cracking of______?
47 / 50
In low temperature carbonisation of coal as compared to high temperature carbonisation ______ produced is less?
48 / 50
In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the_______?
49 / 50
Mott and Wheeler test is conducted on coke to find its _______?
50 / 50
Main use of hard coke produced by high temperature carbonisation is in the ______ ?
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