Furnace Technology Which furnace employs preheating, heating and soaking zones? Open hearth furnace Reheating furnace Soaking pit Cupola Open hearth furnace Reheating furnace Soaking pit Cupola ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The heating capacity of muffle furnace depends on the Surface area & emissivity of the stock Neither A nor B Properties of the muffle wall (temperature, area, emissivity) Both A & B Surface area & emissivity of the stock Neither A nor B Properties of the muffle wall (temperature, area, emissivity) Both A & B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace. Underfired Recirculating Covered Sidefired Underfired Recirculating Covered Sidefired ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Advantages of use of preheated combustion air are All of these Reduction in scale losses Increase in flame temperature Saving in fuel consumption All of these Reduction in scale losses Increase in flame temperature Saving in fuel consumption ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C. 40 60 5 20 40 60 5 20 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In order to maintain a reducing atmosphere in a furnace, it should have None of these High excess air CO in flue gas No O₂ in flue gas None of these High excess air CO in flue gas No O₂ in flue gas ANSWER DOWNLOAD EXAMIANS APP
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