Q. Which of the following has the highest calorific value?

View solution

Q. Higher fuel combustion efficiency cannot be achieved by __________

View solution

Q. Particular coal is said to be free burning when it __________

View solution

Q. The cooling medium used in dry quenching of coke is __________

View solution

Q. High amount of sulphur and phosphorous in coke causes __________

View solution

Q. Cannel coal and boghead coal are the examples of __________

View solution

Q. The difference between total carbon and fixed carbon of coal will be minimum in case of __________

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

View solution

Q. A good quality coal should have __________

View solution

Q. __________ prohibits the use of alcohols directly in petrol engines.

View solution

Q. The hottest part of the flame lies in its ___________ zone.

View solution

Q. Percentage of methane in coke oven gas may be around __________

View solution

Q. __________ of the coal is the basis for Seylor’s coal classification.

View solution

Q. Caking index of the coal blend used for the manufacture of metallurgical coke should be around __________

View solution

Q. High excess air in combustion of fuels results in __________

View solution

Q. The heat of combustion of a fuel __________

View solution

Q. _________ has the widest inflammability limit (explosion limit) of all the gases.

View solution

Q. What are the main constituents of benzol?

View solution

Q. With increase in moisture content of coal, its __________

View solution