Volatile matter content in coking coal may be about _____________ percent?
Volatile matter content in coking coal may be about _____________ percent?
A. 1
B. 7
C. 22
D. 46
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Preheating of combustion air is done to ___________________?
Preheating of combustion air is done to ___________________?A. Increase the adiabatic flame temperature
B. Increase the calorific value of the fuel
C. Complete the combustion of fuel
D. Reduce its requirement for effecting the complete combustionWith increases in carbonisation temperature
Question: With increases in carbonisation temperature
[A].coke even gas yield increases. [B].
tar yield increases. [C].
hydrogen percentage in the coke oven gas decreases. [D].
methane percentage in the coke oven gas increases. Answer: Option A
Explanation:
No answer description available for this question.
Width of the coke oven towards coke side is slightly more than that on pusher side to____________________?
Width of the coke oven towards coke side is slightly more than that on pusher side to____________________?A. Facilitate easy discharging of coke as it swells during carbonisation
B. Facilitate uniform heating of the oven
C. Increase the output of the coke
D. None of theseVolumetric ratio of N2 to O2 in dry atmospheric air is ______________?
Volumetric ratio of N2 to O2 in dry atmospheric air is ______________?A. 0.21
B. 3.76
C. 4.76
D. 0.79Incomplete combustion of a fuel is characterised by the high __________ in the flue gas.
Question: Incomplete combustion of a fuel is characterised by the high __________ in the flue gas.
[A].smoke [B].
temperature [C].
oxygen [D].
carbon monoxide Answer: Option D
Explanation:
No answer description available for this question.
Largest constituent of blast furnace gas is__________________?
Largest constituent of blast furnace gas is__________________?A. N2
B. CO
C. CO2
D. H2