Q. Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant ?

View solution

Q. Percentage of hydrogen in coke oven gas may be around

View solution

Q. Function of secondary air in pulverised coal firing is to

View solution

Q. Calorific value of dry wood may be around __________ Kcal/kg.

View solution

Q. Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³.

View solution

Q. When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal.

View solution

Q. Dry air requirement for burning 1 Nm³ of CO to CO₂ may be around __________ Nm³.

View solution

Q. Degree of carbonisation of coal during coke making can be roughly judged by the __________ of the coke produced.

View solution

Q. Ammonia content in raw coke oven gas is about __________ gm/Nm³.

View solution

Q. Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis.

View solution

Q. Incomplete combustion of fuel in the furnace is judged by high __________ of the flue gases.

View solution

Q. Which of the following has the highest theoretical flame temperature ?

View solution

Q. Ultimate analysis of coal determines its __________ content.

View solution

Q. (64-132) rank coal (ASTM) means a coal with 64%

View solution

Q. High sulphur (4-6%) coal in India are found in

View solution

Q. High ash coals

View solution

Q. Which of the following is not a by-product fuel ?

View solution

Q. Preheating of combustion air is done to

View solution

Q. Anthracite can be used for

View solution

Q. Sulphur in metallurgical coal

View solution