A. Winkler process
B. Kopper-Totzek process
C. Lurgi Process
D. None of these
A. N2 & CH4
B. N2 & H2
C. N2 & CO
D. CH4 & CO2
Blast furnace gas constitutes mainly of_________________? Read More »
Fuels and Combustion A. 20
B. 12.5
C. 0
D. 10
A. S & P content
B. Heating value
C. Fusion point of ash
D. None of these
Washing of coal does not reduce its______________________? Read More »
Fuels and Combustion A. Time of carbonisation
B. Yield of gas and tar
C. Fuel consumption in coking
D. All A., B. and C.
Preheating of coal charge for the coke ovens reduces the __________________? Read More »
Fuels and Combustion A. Producer gas
B. Carburetted water gas
C. Natural gas
D. Liquefied petroleum gas
Which of the following gaseous fuels has the highest net calorific value (kcal/Nm3) ? Read More »
Fuels and Combustion A. Facilitate easy discharging of coke as it swells during carbonisation
B. Facilitate uniform heating of the oven
C. Increase the output of the coke
D. None of these
A. Density of the chimney gases
B. Height of the chimney
C. Both A. and B.
D. Neither A. nor B.
Natural draught produced by a chimney depends upon the _____________________? Read More »
Fuels and Combustion A. Porosity
B. Coke reactivity index (CRI)
C. Critical air blast (CAB) value
D. Both B. and C.
Highly reactive coke have lower ___________________? Read More »
Fuels and Combustion A. Low octane number
B. High cost & availability
C. Low flash point
D. Low calorific value
_____________ prohibits the use of alcohols directly in petrol engines ? Read More »
Fuels and Combustion