Furnace Technology Reverberatory furnace is used for Heating air Roasting/reduction of ores Annealing steel coil Steel melting Heating air Roasting/reduction of ores Annealing steel coil Steel melting ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Very high pressure boilers are usually __________ boilers. Fire tube Waste heat Water tube Natural circulation Fire tube Waste heat Water tube Natural circulation ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turn down ratio of a burner Is the ratio of maximum to minimum permissible heat input rates Should be as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. Is normally much more for a continuous furnace as compared to a batch furnace Is the ratio of maximum to minimum permissible heat input rates Should be as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. Is normally much more for a continuous furnace as compared to a batch furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Size of the combustion chamber of a furnace depends upon the Method of mixing the fuel & air Heat release rate of the fuel Preheat temperature of fuel & air All of these Method of mixing the fuel & air Heat release rate of the fuel Preheat temperature of fuel & air All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of an open hearth furnace may be about __________ percent. 5 80 50 20 5 80 50 20 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Circulation of gases in furnace is caused by the All of these Difference in density between hot and cold gases Furnace pressure in conjunction with draft in flues Change in volume during a change of temperature All of these Difference in density between hot and cold gases Furnace pressure in conjunction with draft in flues Change in volume during a change of temperature ANSWER DOWNLOAD EXAMIANS APP
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