1. The start winding of a shaded-pole motor is a single copper band (page 155). T_
2. The speed of the shaded-pole motor is determined by the load (page 156).
3. The split-phase motor has both start and run windings across the line when it starts (page 158). T_ F
4. Both start and run windings can be energized continuously (page 158).
5. The split-phase motor has less starting torque than the capacitor-run motor (page 159). T_ F
6. Most split-phase motors are replaced—rather than repaired—if there is a winding failure (page 158). T_ F
7. The capacitor-run motor operates continuously with both start and run windings in the circuit (page 159). T_ F
8. How many moving parts are in the capacitor-run motor (page 159)?
9. The multispeed capacitor-run motor’s RPM is governed by the speed selection, regardless of the load (pages 159-160). T_ F
10. The capacitor-run motor is usually replaced if there is a winding failure (page 161). T_ F
11. The capacitor-start motor has high starting torque because of its electrolytic capacitor (page 161). T_ F
12. The start switch is usually the first component to fail in the capacitorstart motor (page 162). T_ F
13. The main cause(s) of dead spots are (page 163)
a. faulty contacts.
b. a worn rotor device.
c. worn thrust washers.
d. all of the above.
14 If thrust washers keep the rotor out of alignment with the stator (off magnetic center) the motor’s amperes decrease (page 163). T_ F
15. It’s more economical to replace the original start switch mechanism of the capacitor-start motor with an electronic start switch, because it has no moving parts to adjust (page 164). T_ F
16. DC current will slow a coasting squirrel cage rotor, but not lock it (page 164). T_ F
17. A continuous high ohmmeter reading means a capacitor is (page 164)
a. open.
b. shorted.
c. has no problem.
18. Voltage stored in a capacitor can damage an ohmmeter (page 164).
19. A motor with an open capacitor won’t start (page 165). T_ F
20. If an electrolytic capacitor is open or shorted, the motor won’t start
(page 165). T_ F
21. Overheating will weaken an electrolytic capacitor (page 165). T_ F
22. A start winding will overheat if not shut off within 3 seconds (page 166).
23. A capacitor-start motor will be insulated better than when it was new if it is rewound by a reputable electric motor service center (page 166).
24. A dual-voltage start winding has three equal circuits (page 166). T_ F
25. The number sequence for connecting a dual-voltage single-phase motor can be remembered using the phrase “in on the 
s, out on the
S.” (page 168)
26. A single-phase motor normally has a low power factor (page 169).
27. A low power factor can be mistaken for shorted turns (page 169). T_ F
28. The data between Tl and T2 is the same as between T5 and T8 (page 170).
29. The comparison test is the best way to check for shorted turns in a dualvoltage run winding (page 170). T_ F
30. The term “in on the odds and out on the evens” applies to both the start and run windings (page 170). T_ F
31. A dual-voltage capacitor-start motor won’t start or run with an open in one of its run circuits (page 171). T_ F
32. A motor that has been submerged in water must be replaced (page 171).
33. What is the purpose of the oil-filled capacitor in a two-value capacitorstart, capacitor-run motor (page 173)?
34. The start winding will be destroyed if the oil-filled capacitor is shorted
(page 173). T_ F
35. If the oil-filled capacitor is removed, the two-value capacitor-start, capacitor-run motor won’t start (page 173). T_ F
36. What are the three rules for electrolytic capacitor connections (page 173)?
37. How many electrolytic capacitors can be connected in series (page 173)?
38. Electrolytic capacitors connected in series are always used on high voltage, and the single capacitor is always used on low voltage (page 173).
39. When one capacitor is open in a multiple-capacitor system—two in parallel in series with two in parallel—what are the two factors that decrease the motor’s starting power (pages 175-176)?
40. When one capacitor is shorted in a multiple-capacitor system—two in parallel in series with two in parallel—the total capacitance is increased
(page 176). T_ F
41. In the term “phase angle”—phase meaning winding, angle meaning the time current flows—a comparison is being made between the time current peaks in one winding (phase) and the time (angle) the current peaks in another winding (page 176). T_ F
42. When the degrees of the phase angle and the degrees of separation between two windings (phases) match, the motor’s torque is at its highest (page 176). T_ F
43. The voltage rating of an oil-filled capacitor should be the same as the applied voltage (page 177). T_ F
44. Voltage generated when a two-value capacitor motor coasts can become destructively high (page 178). T_ F
45. Dual-voltage motors always have capacitors rated for high voltage
(page 178). T_ F
46. Capacitors connected in series are always rated for high voltage (page 178).
47. Fractional horsepower single-phase motors with worn bearings are usually replaced rather than repaired (page 181). T_ F
48. Thermal protective devices (that are self-resetting) shouldn’t be used on machinery that can cause injury (page 181). T_ F
49. Overload current flowing through P2 causes a thermal protective device to trip (page 182). T_ F
50. P3 is always connected to a winding circuit (that will draw high current) when the motor is overloaded (page 182). T_ F
51. The thermal protective device will be destroyed if P3 is connected to line l, when PI is connected to line 2 (page 183). T_ F
52. P2 is always connected to windings that should bypass the heat element
(page 183). T_ F
53. When a dual-voltage motor is connected low voltage, only half of the run winding is connected to P3 (page 184). T_ F
54. A fully loaded dual-voltage motor will have the same number of amperes through its run-winding coils on low voltage as it has on high voltage (pages 184-185). T_ F
4
55. High ambient temperature can cause thermal protective devices to (page 185)
a. not trip.
b. trip needlessly.
c. all of the above.
56. The potential relay start switch can replace a motor’s stationary switch and rotor device, regardless of its speed (page 186). T_ F
57. The voltage across the run winding controls the potential relay’s function (pages 186-187). T_ F
58. The motor’s horsepower rating determines the size of the potential relay’s contacts (page 187). T_ F
59. Voltage across the start winding will increase to a value above line voltage when the rotor reaches 75 to 80 percent of synchronous speed (pages 187-188). T_ F
60. A coasting load causes excessive wear on the potential relay’s components (pages 188-189). T_ F
61. A bleeder resistor will keep a potential relay from cycling (pages 188-189).
62. An electronic switch—that operates the same as the potential relay—has the same voltage/horsepower restrictions (pages 190-191). T_ F
63. A coasting load won’t affect the electronic switch (page 192). T_ F
64. A time-delay electronic switch operates regardless of the motor’s speed (page 192). T_ F
65. A heat-activated start switch is compatible with refrigeration compressors, because a compressor will stay off long enough for the switch to reset (pages 192-193). T_ F
66. A thermal protective device is vital when the heat-activated switch is used (page 193). T_ F
67. The current relay depends on the amperes of the run winding to function (page 194). T_ F
68. The current relay can’t close the contacts if the motor is overloaded (page 194). T_ F
69. The current relay’s ampere rating has to match that of the motor (page 194). T_ F