Furnace Technology Questions

• The reason for excessive clinker formation in gas producers is the
• Heat transfer rate to the stock/charge in the furnace does not depend upon the
• Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent.
• Which of the following is a natural draft furnace?
• Soaking pits are meant for heating steel
• Which is the most thermally efficient furnace?
• Which of the following is the most suitable for preheating combustion air above 650°C?
• The purpose of controlling the furnace atmosphere is to prevent surface attack by
• __________ is an indirectly heated furnace.
• Which is a continuous furnace?
• Which of the following is a heat treatment furnace?
• Example of an indirectly heated furnace is
• Pulverised fuel fired furnaces employ __________ fuel firing.
• Ceramic recuperators compared to metallic recuperators for the same duty
• Regenerators are installed in
• The amount of combustible escaping uncon-sumed from the furnace, depends upon the
• Cement Kiln is a
• Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by
• Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of
• Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent.