Fuels And Combustion - Study Mode

[#326] Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm³/ton coal (ash = 35%).
Correct Answer

(B) 1500

[#327] Coal containing large quantity of __________ are difficult to wash.
Correct Answer

(B) Inherent mineral matter

[#328] Gobar gas is produced by the __________ of 'gobar' (cow dung).
Correct Answer

(B) Fermentation

[#329] Preheating of __________ the flame temperature.
Correct Answer

(C) Either the fuel or the air or both, increases

[#330] Gross heating value of coal is __________ the net heating value.
Correct Answer

(A) Higher than