Q. About __________ Nm³ of air will be required for the complete combustion of 2 Nm³ of CO.

View solution

Q. Coking time in beehive coke oven is about

View solution

Q. "Overfire burning" in a furnace is a phenomenon characterised by the

View solution

Q. Yield of pitch from distillation of high temperature tar is around __________ percent.

View solution

Q. Fuel consumption in coke making can be reduced by

View solution

Q. During combustion of coal on grate, clinker formation is increased by the

View solution

Q. If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be

View solution

Q. With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion

View solution

Q. Which of the following is the maximum coal producing state in India ?

View solution

Q. Height of coke oven is limited (say maximum upto 7 metres) mainly by the

View solution

Q. Out of the following fuels, the difference between the net and gross calorific value is maximum in case of

View solution

Q. The hottest part of the flame lies in its____zone.

View solution

Q. Presence of free moisture in coal is most disadvantageous during

View solution

Q. The heat of combustion of a fuel

View solution

Q. High excess air in combustion of fuels results in

View solution

Q. Abrasion index of blast furnace coke should be around __________ percent.

View solution

Q. Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent.

View solution

Q. The calorific value of 'LPG' (50% propane + 50% butane) is about __________ kcal/Nm³.

View solution

Q. Washing of coal decreases its

View solution

Q. Which of the following petrographic constituents of coal is non-coking ?

View solution