Furnace Technology Maximum heat transfer in high temperature furnaces is by Either A, B or C; depends on the type of furnace Convection Conduction Radiation Either A, B or C; depends on the type of furnace Convection Conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following accentuates clinker-ing troubles on furnace grate burning coal? Low reactivity of carbonised residue containing high proportion of iron & sulphur Thick firebed and preheated primary air Low forced draft & fuel bed temperature All of these Low reactivity of carbonised residue containing high proportion of iron & sulphur Thick firebed and preheated primary air Low forced draft & fuel bed temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Forced recirculation of furnace gases is practised All of these To ensure uniform temperature In furnaces, operating below 750°C To increase heat transfer by convection All of these To ensure uniform temperature In furnaces, operating below 750°C To increase heat transfer by convection 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 Erosion of induced draft fan blades Excessive fly ash discharge from the stack Higher power consumption in its transportation Ash disposal problem Erosion of induced draft fan blades Excessive fly ash discharge from the stack Higher power consumption in its transportation ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology An example of indirectly heated furnace is the Muffle furnace Reheating furnace Soaking pit None of these Muffle furnace Reheating furnace Soaking pit None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which is not accomplished in an underfired furnace? Elimination of cold spot at the bottom of the charge Increase in heating capacity/m² of floor space Reduction in the temperature of furnace gases Portection of the periphery of the charge from excessive radiation Elimination of cold spot at the bottom of the charge Increase in heating capacity/m² of floor space Reduction in the temperature of furnace gases Portection of the periphery of the charge from excessive radiation ANSWER DOWNLOAD EXAMIANS APP
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