Two electric motors (A and B) are being considered to drive a centrifugal pump. Each motor is capable of delivering 50horsepower (output) to the pumping operation. It is expected that the motors will be in use1,200hours per year. If electricity costs$0.07per kilowatt-hour and 1 hp =0.746kW, which motor should be selected if MARR =7%per year? Refer to the data below.

Motor A Motor B Initial Cost 1,600 1,000 Electrical Efficiency 0.58 0.51 Annual Maintenance 65 80 Life, years 5 5

Two electric motors (A and B) are being considered to drive a centrifugal pump. Each motor is capable of delivering 50 horsepower (output) to the pumping operation. It is expected that the motors will be in use 1,200 hours per year. If electricity costs $0.07 per kilowatt-hour and 1 hp = 0.746 kW, which motor should be selected if MARR = 7% per year? Refer to the data below. Motor A Motor B $1,600 $1,000 Initial Cost Electrical Efficiency 0.58 0.51 Annual $65 $80 Maintenance Life 5 years 5 years Click the icon to view the interest and annuity table for discrete compounding when the MARR is 7% per year. The AW for Motor A is $ (Round to the nearest dollar.)