Furnace Technology
Power required in case of forced draught as compared to induced draught (for the same draught produced) is

More
Same
Less
Either more or less; depends on the flue gas density Answer: Option B

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

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

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