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Chemical Engineering - Furnace Technology

Exercise : Furnace Technology - Section 2
6.
In which of the waste heat recovery equipment, the flow of flue gas and air is alternately reversed after a fixed interval of time ?
Recuperator
Regenerator
Waste heat boiler
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace.
resistance
arc
low frequency induction
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Turndown ratio of a burner gives an idea of the __________ in the furnace.
range of fuel firing rates
volume of the combustion chamber
maximum heat input rate only
minimum heat input rate only
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
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.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Which furnace employs natural draft ?
Coke oven
Boiler
Rotary kilns
L.D. converter
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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