Furnace Technology Turndown ratio of a burner gives an idea of the __________ in the furnace. Range of fuel firing rates Maximum heat input rate only Volume of the combustion chamber Minimum heat input rate only Range of fuel firing rates Maximum heat input rate only Volume of the combustion chamber Minimum heat input rate only ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures. 1050 750 350 1250 1050 750 350 1250 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of Zircon powder Graphite powder Thoria Beryllium Zircon powder Graphite powder Thoria Beryllium ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Fuel economy in furnaces can be achieved by All of these Preheating the combustion air Reducing the heat loss through furnace openings & doors Using oxygen enriched combustion air All of these Preheating the combustion air Reducing the heat loss through furnace openings & doors Using oxygen enriched combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Main gas valve in a gaseous fuel burner is a __________ valve. None of these Globe Gate Butterfly None of these Globe Gate Butterfly ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In furnaces operating at very high temperature (say) 1250°C, e.g. soaking pit), the maximum heat transfer takes place by Convection Radiation Conduction Can not be predicted Convection Radiation Conduction Can not be predicted ANSWER DOWNLOAD EXAMIANS APP
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