Furnace Technology Turndown ratio of a burner gives an idea of the __________ in the furnace. Range of fuel firing rates Volume of the combustion chamber Maximum heat input rate only Minimum heat input rate only Range of fuel firing rates Volume of the combustion chamber Maximum heat input rate only Minimum heat input rate only ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Scaling of furnace stock is reduced by __________ in flue gas. High CO/CO₂ H₂ CO All of these High CO/CO₂ H₂ CO All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the stock/charge in the furnace does not depend upon the Thickness of the stock Use of waste heat recovery equipments Emissivity of the refactory walls Size of the furance Thickness of the stock Use of waste heat recovery equipments Emissivity of the refactory walls Size of the furance ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. 45-50 25-30 44119 65-70 45-50 25-30 44119 65-70 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Specific heating capacity of a furnace is expressed as Weight heated/hr None of these Weight heated/hr/furnace volume Weight heated/furnace volume Weight heated/hr None of these Weight heated/hr/furnace volume Weight heated/furnace volume ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent. 15 85 70 40 15 85 70 40 ANSWER DOWNLOAD EXAMIANS APP
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