Proximate analysis of coal determines its ______________ content?

Byadmin March 7, 2019August 26, 2021

Proximate analysis of coal determines its ______________ content?

A. Moisture, ash, sulphur & volatile matter
B. Moisture, volatile matter, ash & fixed carbon
C. Moisture, sulphur, nitrogen & fixed carbon
D. None of these

Fuels and Combustion

Quantity of coke produced from metallurgical coal may be around _____________ percent?

Quantity of coke produced from metallurgical coal may be around _____________ percent?

A. 30
B. 50
C. 75
D. 95

Read More Quantity of coke produced from metallurgical coal may be around _____________ percent?
Fuels and Combustion

During combustion of coal on grate, clinker formation is increased by the___________________?

During combustion of coal on grate, clinker formation is increased by the___________________?

A. Use of thick fire bed
B. Low fusion point of ash (< 1100° C)
C. Use of preheated primary air
D. All A., B. & C.

Read More During combustion of coal on grate, clinker formation is increased by the___________________?
CHEMICAL ENGINEERING | Fuels and Combustion

Fuel combustion is never cent per cent efficient due to

Question: Fuel combustion is never cent per cent efficient due to
[A].

incomplete combustion
[B].
dry gas/stack gas loss
[C].
moisture loss
[D].
all (a), (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question.

Read More Fuel combustion is never cent per cent efficient due to
Fuels and Combustion

Short/intense flame is produced during combustion of gaseous fuel by using________________?

Short/intense flame is produced during combustion of gaseous fuel by using________________?

A. High amount/current of combustion air
B. Low amount/current of combustion air
C. Preheated secondary air
D. Very little excess air

Read More Short/intense flame is produced during combustion of gaseous fuel by using________________?
Fuels and Combustion

Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the_______________?

Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the_______________?

A. Hot scarfing of steel slabs
B. Mixing with blast furnace gas
C. Coke oven battery heating
D. Steel ladle drying

Read More Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the_______________?
Fuels and Combustion

Coke oven gas compared to blast furnace gas is________________?

Coke oven gas compared to blast furnace gas is________________?

A. More explosive and inflammable
B. Less poisonous
C. Lighter
D. All A., B. and C.

Read More Coke oven gas compared to blast furnace gas is________________?

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