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Chemical Engineering - Furnace Technology

Exercise : Furnace Technology - Section 2
31.
Forced recirculation of furnace gases is practised
to increase heat transfer by convection.
to ensure uniform temperature.
in furnaces, operating below 750°C.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the
quantity & temperature of waste gas.
dust concentration & nature of dust in waste gas.
corrosive nature of the waste gas.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Air filtration in a furnace
reduces its thermal efficiency.
is indicated by flame sting out.
increases the flue gas temperature.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Which of the following is the most important deterrants to an extended use of pulverised coal in boiler firing ?
Ash disposal problem.
Excessive fly ash discharge from the stack.
Higher power consumption in its transportation.
Erosion of induced draft fan blades.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Which of the following is a periodic furnace?
Tunnel kiln
Rotary kiln
Soaking pit
Reheating furnace.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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