Fuels and Combustion

Incomplete combustion of a fuel is characterised by the high _______________ in the flue gas?

Byadmin March 7, 2019August 26, 2021

Incomplete combustion of a fuel is characterised by the high _______________ in the flue gas?

A. Smoke
B. Temperature
C. Oxygen
D. Carbon monoxide

Fuels and Combustion

With increase in the time of carbonisation at a particular temperature (say 1000°C), the ______________ percentage in coke oven gas increases?

With increase in the time of carbonisation at a particular temperature (say 1000°C), the ______________ percentage in coke oven gas increases?

A. Hydrogen
B. Methane
C. Unsaturated hydrocarbons
D. All A., B. and C.

Read More With increase in the time of carbonisation at a particular temperature (say 1000°C), the ______________ percentage in coke oven gas increases?
CHEMICAL ENGINEERING | Fuels and Combustion

Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air.

Question: Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air.
[A].

5
[B].
10
[C].
20
[D].
35

Answer: Option C

Explanation:

No answer description available for this question.

Read More Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air.
CHEMICAL ENGINEERING | Fuels and Combustion

Coke oven gas constitutes mainly of

Question: Coke oven gas constitutes mainly of
[A].

H2 & CO
[B].
H2 & CH4
[C].
CH4 & CO
[D].
H2 & CO2

Answer: Option B

Explanation:

No answer description available for this question.

Read More Coke oven gas constitutes mainly of
Fuels and Combustion

Efficient burning of anthracite coal requires______________________?

Efficient burning of anthracite coal requires______________________?

A. Low preheat of air
B. Fine grinding
C. High excess air
D. All A., B. and C

Read More Efficient burning of anthracite coal requires______________________?
Fuels and Combustion

Which of the following gaseous fuels has the highest net calorific value (kcal/Nm3) ?

Which of the following gaseous fuels has the highest net calorific value (kcal/Nm3) ?

A. Producer gas
B. Carburetted water gas
C. Natural gas
D. Liquefied petroleum gas

Read More Which of the following gaseous fuels has the highest net calorific value (kcal/Nm3) ?
Fuels and Combustion

Adiabatic flame temperature of a fuel is dependent on the initial temperature of___________________?

Adiabatic flame temperature of a fuel is dependent on the initial temperature of___________________?

A. Fuel
B. Air
C. Both A. & B.
D. Neither A. nor B.

Read More Adiabatic flame temperature of a fuel is dependent on the initial temperature of___________________?

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