Fuels and Combustion

Narrow coke ovens as compared to wider coke ovens_________________?

Byadmin March 7, 2019August 26, 2021

Narrow coke ovens as compared to wider coke ovens_________________?

A. Produce smaller coke
B. Produce stronger coke
C. Require less time of carbonisation
D. All A., B. and C.

Fuels and Combustion

Coking time in a commercial high temperature coal carbonisation plant is about ______________ hours?

Coking time in a commercial high temperature coal carbonisation plant is about ______________ hours?

A. 6
B. 18
C. 28
D. 36

Read More Coking time in a commercial high temperature coal carbonisation plant is about ______________ hours?
CHEMICAL ENGINEERING | Fuels and Combustion

The calorific value of ‘LPG’ (50% propane + 50% butane) is about __________ kcal/Nm3.

Question: The calorific value of ‘LPG’ (50% propane + 50% butane) is about __________ kcal/Nm3.
[A].

5000
[B].
25, 000
[C].
10, 000
[D].
15, 000

Answer: Option B

Explanation:

No answer description available for this question.

Read More The calorific value of ‘LPG’ (50% propane + 50% butane) is about __________ kcal/Nm3.
CHEMICAL ENGINEERING | Fuels and Combustion

Calorific value of dry wood may be around __________ Kcal/kg.

Question: Calorific value of dry wood may be around __________ Kcal/kg.
[A].

5
[B].
50
[C].
500
[D].
5000

Answer: Option A

Explanation:

No answer description available for this question.

Read More Calorific value of dry wood may be around __________ Kcal/kg.
Fuels and Combustion

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 gas

Read More Which of the following has the highest theoretical flame temperature ?
Fuels and Combustion

Highly caking coals_____________________?

Highly caking coals_____________________?

A. Produce weak coke
B. Produce strong coke
C. May damage the coke oven walls during carbonisation
D. Both B. and C.

Read More Highly caking coals_____________________?
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.

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