A coal having higher volatile matter content, has lower_________________?

Byadmin March 7, 2019August 26, 2021

A coal having higher volatile matter content, has lower_________________?

A. Smoking tendency on burning
B. Coke oven gas yield on carbonisation
C. Chance of catching fire during storage in open space
D. Ignition temperature

Fuels and Combustion

The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to___________________?

The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to___________________?

A. Minimise its corrosion
B. Avoid radiation heat loss
C. Make it look attractive
D. None of these

Read More The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to___________________?
Fuels and Combustion

Weathering of coal during storage causes_______________?

Weathering of coal during storage causes_______________?

A. Reduction in coal size
B. Increase in its friability
C. Decrease in its caking capacity
D. All A., B. and C.

Read More Weathering of coal during storage causes_______________?
Fuels and Combustion

Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an ______________ bed gasifier?

Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an ______________ bed gasifier?

A. Entrained
B. Moving
C. Fixed
D. Fluidised

Read More Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an ______________ bed gasifier?
Fuels and Combustion

Nitrogen in coal_________________?

Nitrogen in coal_________________?

A. Is present upto 1-2%
B. Comes from protein in parent vegetable matter
C. Is recovered as ammonia during its carbonisation
D. All A., B. and C.

Read More Nitrogen in coal_________________?
CHEMICAL ENGINEERING | Fuels and Combustion

__________ of the coal is the basis for Seylor’s coal classification.

Question: __________ of the coal is the basis for Seylor’s coal classification.
[A].

Proximate analysis
[B].
Ultimate analysis
[C].
Caking index
[D].
Calorific value

Answer: Option B

Explanation:

No answer description available for this question.

Read More __________ of the coal is the basis for Seylor’s coal classification.
Fuels and Combustion

A coal gasifier operating at 20 atm. (e.g. Lurgi gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having _____________________?

A coal gasifier operating at 20 atm. (e.g. Lurgi gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having _____________________?

A. Higher methane content and thus higher calorific value
B. Higher carbon monoxide content
C. Lower carbon dioxide content
D. None of these

Read More A coal gasifier operating at 20 atm. (e.g. Lurgi gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having _____________________?

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