Which of the following has the highest heat of combustion ?
Which of the following has the highest heat of combustion ?
A. H2
B. CO
C. CH4
D. C2H6
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Flue gas from the heating chamber of by product coke ovens is removed by________________?
Flue gas from the heating chamber of by product coke ovens is removed by________________?A. Forced draft fan
B. Induced draft fan
C. Steam ejector
D. Natural draftFunction of secondary air in pulverised coal firing is to
Question: Function of secondary air in pulverised coal firing is to
[A].transport the coal to the burner. [B].
dry the coal. [C].
ensure efficient burning of coal around the burner. [D].
reduce primary air requirement. Answer: Option C
Explanation:
No answer description available for this question.
Incomplete 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.
Fusion point of coal ash generally varies from 1000 to 1700° C. Ash having fusion point less than _______________ °C is liable to form clinker?
Fusion point of coal ash generally varies from 1000 to 1700° C. Ash having fusion point less than _______________ °C is liable to form clinker?A. 1100
B. 1250
C. 1350
D. 1400Low temperature carbonisation of coal produces
Question: Low temperature carbonisation of coal produces
[A].metallurgical coke [B].
soft coke [C].
very low calorific value coke oven gas [D].
no by-products Answer: Option B
Explanation:
No answer description available for this question.
The most matured coal out of the following is__________________?
The most matured coal out of the following is__________________?A. Lignite
B. Semi-anthracite
C. Sub-bituminous
D. Bituminous