A technician has been asked to estimate the cost of operating a 5 horse power motor. Because the plant is build by energy consumed as kilowatt-hours, the technician will have to calculate the conversion. The equivalent in energy of a 5 core power motor operating 9 hours in kilowatt-hours is closest to:

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Multiple Choice

A technician has been asked to estimate the cost of operating a 5 horse power motor. Because the plant is build by energy consumed as kilowatt-hours, the technician will have to calculate the conversion. The equivalent in energy of a 5 core power motor operating 9 hours in kilowatt-hours is closest to:

Explanation:
Converting horsepower to kilowatts and multiplying by time gives energy in kilowatt-hours. Use 1 horsepower equals 0.746 kilowatts, so five horsepower is 5 × 0.746 ≈ 3.73 kW. If the motor runs for 9 hours, the energy used is 3.73 kW × 9 h ≈ 33.57 kWh, which rounds to 33.6 kWh. This is the closest energy value. (Note: real energy use can vary with motor efficiency and power input.)

Converting horsepower to kilowatts and multiplying by time gives energy in kilowatt-hours. Use 1 horsepower equals 0.746 kilowatts, so five horsepower is 5 × 0.746 ≈ 3.73 kW. If the motor runs for 9 hours, the energy used is 3.73 kW × 9 h ≈ 33.57 kWh, which rounds to 33.6 kWh. This is the closest energy value. (Note: real energy use can vary with motor efficiency and power input.)

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