Q. Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature ?

View solution

Q. 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

View solution

Q. Washing of coal is done to reduce the

View solution

Q. Volumetric ratio of N₂ to O₂ in dry atmospheric air is

View solution

Q. Coke oven gas burns with an yellowish flame, because of the presence of

View solution

Q. Main constituent of the gas produced from a gobar gas plant is

View solution

Q. Steam is intermittently admitted into the fuel bed during the production of producer gas to

View solution

Q. In general, the limit of inflammability/explosion limit of fuel gases is widened by the

View solution

Q. Caking coal is desirable for

View solution

Q. Blast furnace gas compared to coke oven gas has

View solution

Q. "Micum Index" of a coke is a measure of its

View solution

Q. 'Wind loss' resulting from unscientific storage of coal may be the order of about __________ percent.

View solution

Q. Volatile matter content in coking coal may be about __________ percent.

View solution

Q. The main function of primary air in pulverised coal fired burner is to

View solution

Q. __________ is used as jet engine fuel.

View solution

Q. The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal.

View solution

Q. Net calorific value is the gross calorific value less the __________ heat of water in the product of combustion when cooled to 15°C.

View solution

Q. The catalyst used in shift converter is

View solution

Q. The optimum percentage of excess air for combustion depends upon the __________ of the fuel.

View solution

Q. Fuel for a nuclear reactor (thermal) is

View solution