Furnace Technology Which of the following is the most suitable for preheating combustion air above 650°C ? Ceramic recuperator Metallic recuperator Regenerator None of these Ceramic recuperator Metallic recuperator Regenerator None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In low or standard frequency induction furnace, heat is produced by the None of these Current flow through a heating element Combination of induced current and skin effect Induction and resistance None of these Current flow through a heating element Combination of induced current and skin effect Induction and resistance ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology __________ is an indirectly heated furnace. Soaking pit Reheating furnace Open hearth furnace Muffle furnace Soaking pit Reheating furnace Open hearth furnace Muffle furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of furnaces can be improved by Minimising heat losses from furnace walls Maintaining proper draught All of these Waste heat recovery from flue gas Minimising heat losses from furnace walls Maintaining proper draught All of these Waste heat recovery from flue gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is the most important deterrants to an extended use of pulverised coal in boiler firing? Ash disposal problem Excessive fly ash discharge from the stack Higher power consumption in its transportation Erosion of induced draft fan blades Ash disposal problem Excessive fly ash discharge from the stack Higher power consumption in its transportation Erosion of induced draft fan blades 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 Conduction Convection Radiation Can not be predicted Conduction Convection Radiation Can not be predicted ANSWER DOWNLOAD EXAMIANS APP