Furnace Technology
While the fuel fired furnace can be used upto a maximum temperature of about 1700°C, the electric furnace can be used upto a temperature of about __________ °C.

6000
3000
2000
4500

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Furnace Technology
The reason for excessive clinker formation in gas producers is the

Development of hot spots in the fuel bed and an abnormally high rate of gasification
All of these
Use of coal/coke containing a high % of fines and ash
Use of fuel having too low an ash fusion temperature

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