Q. As the C/H ratio of the fuel increases, the amount of CO₂ formed on combustion __________ for the same percentage of excess air.

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

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Q. Calorific value as determined by bomb calorimeter is the

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Q. Fixed carbon in coal is defined as

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Q. Which of the following fuels has the highest calorific value per unit mass (kcal/kg) ?

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Q. With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases.

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Q. During its calorific value determination by bomb calorimeter, coal is combusted by

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Q. Abel apparatus is used for those oils, whose flash points are___°F.

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Q. Quantity of coke produced from metallurgical coal may be around __________ percent.

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Q. Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis.

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Q. Out of the following fuels, the difference between gross and net calorific value will be minimum in case of

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Q. Fuel for a fast breeder nuclear reactor is

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Q. Which of the following gaseous fuels is likely to have the highest gross calorific value?

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

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Q. Lignite is

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Q. Shatter index of metallurgical coke on 2 inches and 0.5 inch screen should be respectively around __________ percent.

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Q. Naphthalene recovered from coke oven gas is used

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Q. Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called

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Q. Which of the following is not applicable to fluidised bed combustion of coal ?

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Q. Coal containing large quantity of __________ are difficult to wash.

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