Q. The heat recoverable from flue gases of furnaces depends on the

View solution

Q. Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C.

View solution

Q. Which is a continuous furnace ?

View solution

Q. The reason for excessive clinker formation in gas producers is the

View solution

Q. Which of the following is not an additive for flue gases from furnace to reduce its dew-point?

View solution

Q. Acid dew point temperature (ADT) of a flue gas produced by the combustion of a fuel containing 1% sulphur may be about __________ °C.

View solution

Q. Low stack loss indicates the

View solution

Q. Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent.

View solution

Q. __________ is an indirectly heated furnace.

View solution

Q. The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent.

View solution

Q. In a muffle furnace, the muffle

View solution

Q. Which is not a hearth furnace ?

View solution

Q. An example of shaft furnace is the

View solution

Q. Example of an indirectly heated furnace is

View solution

Q. Which furnace employs preheating, heating and soaking zones ?

View solution

Q. Calcination of limestone to produce lime is done in a __________ kiln.

View solution

Q. Thickness of stock does not affect the fuel economy of furnaces, if the material to be heated is of

View solution

Q. Ceramic recuperators compared to metallic recuperators for the same duty

View solution

Q. Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of

View solution

Q. In reverberatory furnace, charge is heated mainly by

View solution