Q. Which of the following furnaces will have maximum thermal efficiency ?

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Q. Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an

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Q. Dampers are located

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Q. Protective gas used in the annealing furnace for steel coil comprises of

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Q. Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of

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Q. Scaling of furnace stock is reduced by __________ in flue gas.

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Q. __________ furnace is not an electric furnace.

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Q. The main function of a muffle in the muffle furnace is to

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Q. Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C.

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Q. Very high pressure boilers are usually __________ boilers.

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Q. Heat transfer rate to the charge/stock in a furnace does not depend upon the

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Q. Heat balance of furnace provides means of determining the

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Q. Pot furnace which is either regenerative or recupterative, is used in the manufacture of

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Q. Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace ?

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Q. A refractory wall separating the stock and the source of heat is provided in a

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Q. Which one shows the diagramatic heat balance in a furnace ?

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Q. Decarburisation of steel

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Q. Blast furnace stoves are meant for heating

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Q. Fuel economy in furnaces can be achieved by

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Q. Thermal efficiency of an open hearth furnace may be about __________ percent.

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