Furnace Technology Advantages of use of preheated combustion air are Saving in fuel consumption Reduction in scale losses Increase in flame temperature All of these Saving in fuel consumption Reduction in scale losses Increase in flame temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators compared to the recuperators for the same duty All of these Are of smaller size Are less costly Occupy more space All of these Are of smaller size Are less costly Occupy more space ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The heating capacity of muffle furnace depends on the Surface area & emissivity of the stock Both A & B Neither A nor B Properties of the muffle wall (temperature, area, emissivity) Surface area & emissivity of the stock Both A & B Neither A nor B Properties of the muffle wall (temperature, area, emissivity) ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace employing forced draught as compared to induced draught, None of these Positive pressure exists in the furnace The fan operates hot and hence blades are liable to corrosion and erosion Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced None of these Positive pressure exists in the furnace The fan operates hot and hence blades are liable to corrosion and erosion Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ostwald charts are meant for Computing the excess/deficiency of combustion air None of these Calculation of flue gas temperature Computation of flue gas analysis Computing the excess/deficiency of combustion air None of these Calculation of flue gas temperature Computation of flue gas analysis ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of an open hearth furnace may be about __________ percent. 80 20 5 50 80 20 5 50 ANSWER DOWNLOAD EXAMIANS APP
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