A steam power station has an overall efficiency of 25%, and 0.5 kg of – McqOptions

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1.	A steam power station has an overall efficiency of 25%, and 0.5 kg of coal is burnt per kWh of electrical energy generated. Determine the calorific value of fuel.(Take heat equivalent of 1 kWh as 860 kcal)
A.	1720 kcal/kg
B.	6880 kcal/kg
C.	3400 kcal/kg
D.	4650 kcal/kg
Answer» C. 3400 kcal/kg

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