Quantity & temperature of waste gas
Dust concentration & nature of dust in waste gas
Corrosive nature of the waste gas
All of the above
✅ The correct answer is option B.
Furnace Technology MCQs
Operation of blast furnace stove is based on the principles of a __________ furnace.
Regenerative
Recuperative
Both A and B
Neither A nor B
✅ The correct answer is option A.
The purpose of controlling the furnace atmosphere is to prevent surface attack by
Oxidation/scaling
Decarburising
Sulphur penetration
Either of the above
✅ The correct answer is option D.
Which furnace employs natural draft?
Coke oven
Boiler
Rotary kilns
L.converter
✅ The correct answer is option A.
A refractory wall separating the stock and the source of heat is provided in a
Updraft kiln
Muffle furnace
Continuous furnace
None of these
✅ The correct answer is option B.
In low or standard frequency induction furnace, heat is produced by the
Combination of induced current and skin effect
Induction and resistance
Current flow through a heating element
None of these
✅ The correct answer is option B.
Which of the following variables does not affect the furnace capacity?
Size of the furnace
Gas velocity in furnace
Ratio of wall surface to surface of stock
None of these
✅ The correct answer is option D.
Which is not accomplished in an underfired furnace?
Increase in heating capacity/m² of floor space
Elimination of cold spot at the bottom of the charge
Reduction in the temperature of furnace gases
Portection of the periphery of the charge from excessive radiation
✅ The correct answer is option A.
Furnace aerodynamics is related to the __________ in the furnace.
Movement of gases
Measurement of flue gas volume
Temperature control
Pressure adjustment
✅ The correct answer is option A.
Heat balance of furnace provides means of determining the
Thermal efficiency of the process
Sources of heat losses
Scope of reduction of heat losses
All of the above
✅ The correct answer is option D.