279 Copyright Goodheart-Willcox Co., Inc. Name __________________________________________ Date _______________________ Class ______________________ Know and Understand ____________ 1. Which answer is not equal to one horsepower? A. 746 Watts B. 550 ft-lbs per minute C. 33,000 ft-lbs per minute D. 550 ft-lbs per second ____________ 2. True or False? Th e centrifugal switch contacts are normally open when it is used to remove the start winding from the motor circuit. ____________ 3. When a dual voltage motor is wired to operate with high voltage, the windings are configured as follows: A. both start windings and both run windings are in series. B. the start winding is in series with two parallel run windings. C. all windings are in parallel. D. the run windings are in series and the start winding is in parallel with one of the run windings. ____________ 4. True or False? Th e inrush current drawn when a motor starts is called locked rotor amperage. ____________ 5. Synchronous speed describes the speed of the _____. A. rotor B. shaft C. bearings D. rotating magnetic fi eld ____________ 6. Which factor does not aff ect rotor speed? A. Voltage. B. Frequency. C. Number of poles. D. None of the above. ____________ 7. What is not true about an RSIR motor? A. Th e start winding stays in the circuit after start up. B. Th e run winding has less dc resistance the start winding. C. Th e start winding is removed from the circuit after start up. D. It has low starting torque. ____________ 8. What is not true about a CSIR motor? A. Th e start winding stays in the circuit after start up. B. Th e run winding has less dc resistance the start winding. C. Th e start winding is removed from the circuit after start up. D. It has high starting torque. ____________ 9. Which motor has low to moderate starting torque and the start winding remains in the circuit after start up? A. PSC. B. RSIR. C. CSR. D. CSIR. ____________ 10. Which is not true about a PSC motor? A. It has high starting torque. B. Th e start winding remains in the circuit after start up. C. A run capacitor is in series with the start winding. D. It is more effi cient than the RSIR motor. ____________ 11. Which split-phase motor has the highest starting torque? A. PSC with assist PTC relay. B. CSIR. C. CSR. D. Th ree-phase motor.