| Q.21 | A three phase induction motors synchronous speed is 1500 RPM, then the motors speed can never be equal to _______. | |
| Ans | 1. 1400 RPM | |
| 2. 1420 RPM | ||
| 3. 1500 RPM | ||
| 4. 1480 RPM |
Correct Ans Provided: 3
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