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Fuels and Combustion

Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the____________________?

Fuels and Combustion /
Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the____________________?

A. Decolourisation of sugar
B. Solvent recovery from air and gases
C. Absorption of gases and vapor
D. Electrode manufacture

Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the____________________? Read More »

Fuels and Combustion

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

Fuels and Combustion /
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

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

Fuels and Combustion

“Overfire burning” in a furnace is a phenomenon characterised by the __________________?

Fuels and Combustion /
“Overfire burning” in a furnace is a phenomenon characterised by the __________________?

A. Supply of excess fuel
B. Supply of excess air
C. Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying
more air
D. None of these

“Overfire burning” in a furnace is a phenomenon characterised by the __________________? Read More »

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 _____________________?

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

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 _____________________? Read More »

Fuels and Combustion