Furnace Technology Questions

• Operation of blast furnace stove is based on the principles of a __________ furnace.
• A refractory wall separating the stock and the source of heat is provided in a
• Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the
• Which one is not an induced draught furnace?
• Combustion of fuel in a furnace with oxygen enriched air results in higher
• Furnace aerodynamics is related to the __________ in the furnace.
• Advantages of use of preheated combustion air are
• In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of
• The rate of scaling of furnace stock depends upon the
• Fuel economy in an industrial furnace operation can not be achieved by the use of
• Which of the following variables does not affect the furnace capacity?
• Pick out the wrong statement.
• Thermal efficiency of an open hearth furnace may be about __________ percent.
• Neutral atmosphere is maintained in a/an __________ furnace.
• An example of recuperative furnace is the
• Which furnace employs an I.D. fan for the removal of flue gases from the furnace?
• Circulation of gases in furnace is caused by the
• In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of
• Unit of furnace loading is
• The function of an economiser in a boiler is to preheat the