Furnace Technology Ceramic recuperators compared to metallic recuperators for the same duty Occupy more space Have higher pressure differential between flue gas & air side Are lighter Are less costly Occupy more space Have higher pressure differential between flue gas & air side Are lighter Are less costly ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Protective gas used in the annealing furnace for steel coil comprises of 100% CO 95% N₂ + 5% H₂ 5% H₂ + 9% N₂ 100 %H₂ 100% CO 95% N₂ + 5% H₂ 5% H₂ + 9% N₂ 100 %H₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is not an additive for flue gases from furnace to reduce its dew-point? Ammonia Alkaline powders None of these Fine dolomite Ammonia Alkaline powders None of these Fine dolomite ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a muffle furnace, the muffle Assists in temperature equalisation in the charge All of these Retards the heat transfer Permits the use of controlled atmosphere for the protection of stock Assists in temperature equalisation in the charge All of these Retards the heat transfer Permits the use of controlled atmosphere for the protection of stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Combustion of fuel in a furnace with oxygen enriched air results in higher Flame temperature Stack loss Fuel consumption Flue gas volume Flame temperature Stack loss Fuel consumption Flue gas volume ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Advantages of use of preheated combustion air are Saving in fuel consumption All of these Increase in flame temperature Reduction in scale losses Saving in fuel consumption All of these Increase in flame temperature Reduction in scale losses ANSWER DOWNLOAD EXAMIANS APP
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