Percentage of carbon monoxide in blast furnace gas may be around ____________________ ?
Percentage of carbon monoxide in blast furnace gas may be around ____________________ ?
A. 8
B. 14
C. 22
D. 52
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Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if __________________?
Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if __________________?A. It contains large amount of volatile matter
B. It is stored in tall heaps
C. Smaller fines are stored in large quantity
D. All A., B. and C.A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the
Question: A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the
[A].presence of large quantity of hydrogen in the fuel. [B].
low calorific value of the fuel. [C].
high sulphur content in the fuel. [D].
lack of thorough mixing of fuel with air. Answer: Option D
Explanation:
No answer description available for this question.
Oxygen required for theoretically complete combustion of 1 Nm3 methane is ______________ Nm3?
Oxygen required for theoretically complete combustion of 1 Nm3 methane is ______________ Nm3?A. 2
B. 4
C. 6
D. 1During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the
Question: During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the
[A].incomplete combustion. [B].
complete combustion. [C].
high oxygen in flue gas. [D].
none of these. Answer: Option B
Explanation:
No answer description available for this question.
The maximum adiabatic flame temperature in air is _____________ the maximum flame temperature in pure oxygen?
The maximum adiabatic flame temperature in air is _____________ the maximum flame temperature in pure oxygen?A. Lower than
B. Higher than
C. Same as
D. Not related toA coal with high ash content
Question: A coal with high ash content
[A].has higher calorific value. [B].
is harder and stronger. [C].
is not subjected to washing. [D].
has low quantity of mineral matter. Answer: Option B
Explanation:
No answer description available for this question.