Furnace Technology Which furnace employs preheating, heating and soaking zones? Soaking pit Cupola Open hearth furnace Reheating furnace Soaking pit Cupola Open hearth furnace Reheating furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turn down ratio of a burner Should be as low as possible i.e., 1 : 2 Is the ratio of maximum to minimum permissible heat input rates Is normally much more for a continuous furnace as compared to a batch furnace Should be 1:1 for a batch type furnace. Should be as low as possible i.e., 1 : 2 Is the ratio of maximum to minimum permissible heat input rates Is normally much more for a continuous furnace as compared to a batch furnace Should be 1:1 for a batch type furnace. ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The heating capacity of continuous reheating furnace depends upon the Hearth area and furnace temperature All of these Ratio of wall surface to stock surface Emissivity of the stock Hearth area and furnace temperature All of these Ratio of wall surface to stock surface Emissivity of the stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turndown ratio of a burner gives an idea of the __________ in the furnace. Maximum heat input rate only Range of fuel firing rates Minimum heat input rate only Volume of the combustion chamber Maximum heat input rate only Range of fuel firing rates Minimum heat input rate only Volume of the combustion chamber ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of an open hearth furnace may be about __________ percent. 50 80 5 20 50 80 5 20 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about __________ percent. < 8 < 2 < 5 < 10 < 8 < 2 < 5 < 10 ANSWER DOWNLOAD EXAMIANS APP
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