A bauxite processing plant in Guyana operates a large furnace rated at 50 kW for 8 hours daily. How much electrical energy, in kWh, does the furnace consume in one day?

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Question

A bauxite processing plant in Guyana operates a large furnace rated at 50 kW for 8 hours daily. How much electrical energy, in kWh, does the furnace consume in one day?

Accepted Answer

400 kWh — Award 1 mark for correct calculation. Energy = Power × Time = 50 kW × 8 h = 400 kWh. A is incorrect because it divides instead of multiplies. C is incorrect because it ignores the time factor. D is incorrect due to calculation error.

Answer

6.25 kWh

Answer

50 kWh

Answer

625 kWh

Answer

400 kWh

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