Furnace Technology
Specific heating capacity of a furnace is expressed as

None of these
Weight heated/hr
Weight heated/furnace volume
Weight heated/hr/furnace volume

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Furnace Technology
Which is not accomplished in an underfired furnace?

Portection of the periphery of the charge from excessive radiation
Reduction in the temperature of furnace gases
Increase in heating capacity/m² of floor space
Elimination of cold spot at the bottom of the charge

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Furnace Technology
The amount of combustible escaping uncon-sumed from the furnace, depends upon the

Air supplied and furnace temperature
Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction)
Burner design (thoroughness of mixing versus stratification)
All of these

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