Q. Overfire burning in a furnace is a phenomenon characterised by
✅ Correct Answer: (C)
Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air
Furnace Technology MCQs | Page - 1
Dear candidates you will find MCQ questions of Furnace Technology here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Which of the following variables does not affect the furnace capacity?
✅ Correct Answer: (D)
None of these
Q. Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent.
✅ Correct Answer: (B)
40
Q. If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.
✅ Correct Answer: (A)
Premix
Q. Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of
✅ Correct Answer: (C)
Blast furnace gas with air
Q. Protective gas used in the annealing furnace for steel coil comprises of
✅ Correct Answer: (A)
95% N2 + 5% H2
Q. In reverberatory furnace, charge is heated mainly by
✅ Correct Answer: (C)
Radiation of heat from the roof of the combustion chamber
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