Dry air required to burn 1 kg of carbon completely may be around ______________ kg?
Dry air required to burn 1 kg of carbon completely may be around ______________ kg?
A. 11
B. 2
C. 20
D. 38
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Fusion point of coal ash increases with increase in its ____________ content?
Fusion point of coal ash increases with increase in its ____________ content?A. Iron sulphate
B. Iron silicate
C. Lime and magnesia
D. All A., B. and C.Main constituent of natural gas is
Question: Main constituent of natural gas is
[A].CH4 (upto 90%) [B].
C2H6 [C].
C3H8 [D].
H2 Answer: Option A
Explanation:
No answer description available for this question.
Which of the following has the highest theoretical flame temperature ?
Which of the following has the highest theoretical flame temperature ?A. Blast furnace gas
B. Hydrogen
C. Acetylene
D. Coke oven gasA carbonaceous fuel (containing no H2 or hydrocarbons) is burnt and the resulting flue gas contains 21% CO2. It means that
Question: 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 combustion. Answer: Option C
Explanation:
No answer description available for this question.
Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.
Question: Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.
[A].400-500 [B].
900-1000 [C].
1400-1500 [D].
1700-1800 Answer: Option B
Explanation:
No answer description available for this question.
Stoichiometric combustion of 12 kg of carbon requires _____________ of oxygen?
Stoichiometric combustion of 12 kg of carbon requires _____________ of oxygen?A. 1kg mole
B. 22.4 Nm3
C. 32 kg
D. All A., B. and C.