Question #13200253
Please please help me to solve motor related question?
Q.A machine is deployed in a coal production area where the specific energy consumption for cutting coal is 800 kJ/m3. The specific gravity of coal is 1.2. If the machine produces 700 te/h, the electrical power consumption in kW of the machine at 65% motor efficiency is (A) 149.4 (B) 199.4 (C) 219.4 (D) 239.4
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