Recuperator
Regenerator
Waste heat boiler
None of these
✅ The correct answer is option B.
Furnace Technology MCQs
Specific heating capacity of a furnace is expressed as
Weight heated/hr
Weight heated/furnace volume
Weight heated/hr/furnace volume
None of these
✅ The correct answer is option C.
In which of the following furnaces, the gases are sucked through the stock bed from below?
Soaking pit
Sintering machine
Beehive oven
None of these
✅ The correct answer is option B.
Regenerators are used for waste heat recovery in
By-product coke ovens
Beehive coke oven
Blast furnace stoves
Soaking pits
✅ The correct answer is option A.
Recuperator is
Not used for fuel gas preheating
An intermittant waste heat recovery equipment
A continuous waste heat recovery equipment
Heavier than regenerator meant for the same duty
✅ The correct answer is option C.
In a muffle furnace, the muffle
Retards the heat transfer
Assists in temperature equalisation in the charge
Permits the use of controlled atmosphere for the protection of stock
All of the above
✅ The correct answer is option D.
Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an
Blast furnace
Steam boiler
Salt bath furnace
Annealing furnace
✅ The correct answer is option C.
Ostwald charts are meant for
Computing the excess/deficiency of combustion air
Calculation of flue gas temperature
Computation of flue gas analysis
None of these
✅ The correct answer is option A.
Maximum heat transfer in high temperature furnaces is by
Conduction
Convection
Radiation
Either A, B or C; depends on the type of furnace
✅ The correct answer is option C.
Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace?
Increase in calorific value of the fuel
Increase in flame temperature
Reduction in scale losses
Saving in fuel consumption
✅ The correct answer is option A.