High rate of heating of coke ovens____________________?

Byadmin March 7, 2019August 26, 2021

High rate of heating of coke ovens____________________?

A. May damage its walls due to abrupt excessive swelling of coal
B. Produces larger size coke
C. Increases the time of carbonisation
D. None of these

Fuels and Combustion

Yield of charcoal in high temperature carbonisation of wood is about _____________ percent?

Yield of charcoal in high temperature carbonisation of wood is about _____________ percent?

A. 10
B. 25
C. 50
D. 75

Read More Yield of charcoal in high temperature carbonisation of wood is about _____________ percent?
CHEMICAL ENGINEERING | Fuels and Combustion

Coke oven gas burns with an yellowish flame, because of the presence of

Question: Coke oven gas burns with an yellowish flame, because of the presence of
[A].

CO2
[B].
CH4
[C].
H2
[D].
NH3

Answer: Option B

Explanation:

No answer description available for this question.

Read More Coke oven gas burns with an yellowish flame, because of the presence of
Fuels and Combustion

Gross and net calorific value of a fuel will be the same__________________?

Gross and net calorific value of a fuel will be the same__________________?

A. If its ash content is zero
B. If its carbon content is very low
C. If its hydrogen/hydrogen compound content is zero
D. Under no circumstances

Read More Gross and net calorific value of a fuel will be the same__________________?
Fuels and Combustion

Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the___________________?

Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the___________________?

A. Requirement of large volume combustion chamber
B. Risk of explosion
C. Chances of clinker formation
D. Incomplete combustion of coal

Read More Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the___________________?
CHEMICAL ENGINEERING | Fuels and Combustion

Anthracite can be used for

Question: Anthracite can be used for
[A].

recarbonising steel.
[B].
making carbon electrodes;
[C].
blending with highly coking coal to check its swelling which helps in saving coke even walls from damage and to produce high strength coke.
[D].
all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

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Fuels and Combustion

Which of the following is a primary fuel ?

Which of the following is a primary fuel ?

A. Blast furnace coke
B. Gasoline
C. Natural gas
D. Wood charcoal

Read More Which of the following is a primary fuel ?

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