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What gaseous Fuel is obtained by passing steam over candescent coke?(a) Producer gas(b) Water gas(c) Coal gas(d) Coke over gasI had been asked this question during an internship interview.I'd like to ask this question from Gaseous Fuels & Nuclear Fuels in section Steam Power Plant of Energy Engineering

Answer»

The correct OPTION is (B) Water gas

The explanation: Water gas is OBTAINED by passing steam over candescent coke. It burns with a BLUE flame and hence it is known as blue water gas. It has CALORIFIC value ranging between10500KJ/mm^3 to 2300KJ/mm^3. It is used in welding and in furnaces.



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