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1. |
What is the overall efficiency of the thermal plant? |
A. | The ratio of heat equivalent of electrical output to the heat of combustion of coal. |
B. | The ratio of heat of combustion of coal to the heat equivalent of electrical output. |
C. | The ratio of heat equivalent of mechanical energy transmitted to the turbine shaft to the heat of combustion of coal. |
D. | The ratio of heat of combustion of coal to the heat equivalent of mechanical energy transmitted to the turbine shaft. |
Answer» B. The ratio of heat of combustion of coal to the heat equivalent of electrical output. | |