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1. |
A steam power plant produces 1 unit of electrical energy by using 0.5 kg of coal and its overall efficiency is 20%. Calculate the calorific value of fuel. |
A. | 6600 kcal/kg |
B. | 8000 kcal/kg |
C. | 8600 kcal/kg |
D. | 8400 kcal/kg |
Answer» D. 8400 kcal/kg | |