Blast furnace gas constitutes mainly of_________________?
Blast furnace gas constitutes mainly of_________________?
A. N2 & CH4
B. N2 & H2
C. N2 & CO
D. CH4 & CO2
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If oxygen content in the flue gas rises too high, fuel is being wasted by _______________?
If oxygen content in the flue gas rises too high, fuel is being wasted by _______________?A. Incomplete combustion
B. Dry gas/stack gas loss
C. Moisture loss
D. None of theseA carbonaceous fuel (containing no H2 or hydrocarbons) is burnt and the resulting flue gas contains 21% CO2. It means that___________________?
A carbonaceous fuel (containing no H2 or hydrocarbons) is burnt and the resulting flue gas contains 21% CO2. It means that___________________?A. 21% excess air has been used for combustion
B. 21% excess oxygen has been used for combustion
C. Complete combustion of fuel has taken place
D. No excess air has been used for combustionBlast furnace gas constitutes mainly of
Question: Blast furnace gas constitutes mainly of
[A].N2 & CH4 [B].
N2 & H2 [C].
N2 & CO [D].
CH4 & CO2 Answer: Option C
Explanation:
No answer description available for this question.
High ash coals ____________________?
High ash coals ____________________?A. Are soft & friable (poor strength and size stability)
B. Require longer time of carbonisation as ash offers resistance to heat transfer
C. Produce larger quantity of coke oven gas
D. None of thesePensky-Marten apparatus is used for those oils, whose flash points are __________ °F.
Question: Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F.
[A].<120 [B].
>120 [C].
<90 [D].
90-110 Answer: Option B
Explanation:
No answer description available for this question.
For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3), while the C.V. is same on weight basis (i.e., kcal/kg) ?
For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3), while the C.V. is same on weight basis (i.e., kcal/kg) ?A. Propane and acetylene
B. Propane and LPG
C. Sewage gas and gobar gas
D. B.F. gas and coke oven gas