Furnace Technology Questions

• Reducing atmosphere is maintained in a
• Which one shows the diagramatic heat balance in a furnace?
• Artificial draught produced by a fan in the furnace can be controlled by the
• Size of the combustion chamber of a furnace depends upon the
• Pot furnace which is either regenerative or recupterative, is used in the manufacture of
• Which of the following is a rotary furnace?
• Regenerators as compared to recuperators for the same duty
• In order to maintain an oxidising atmosphere in a furnace, it should have
• In a furnace operation, which is not preheated?
• Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about __________ percent.
• Presence of SO2 in furnace gases attacks the ferrous metal by way of
• The advantages of firing pulverised coal in the furnace lies in the fact that, it
• In salt bath furnace, heat is transferred to the charge mainly by
• Reheating furnace (pusher type) is used for heating
• Decarburisation of steel
• The heating capacity of continuous reheating furnace depends upon the
• If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.
• 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.
• The resistance furnace produces heat by the
• If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace.