Motors & Drives: A Practical Technology Guide

This is the final exam for the book. Reviewing the "Check Your Knowledge" questions in each chapter would be helpful before taking this final set of questions.
| 1. | How is line notching corrected in a DC drive system? |
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| 2. | What is RFI and how is it controlled in a DC drive system? |
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| 3. | What are harmonics and what are the corrective actions to reduce them? |
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| 4. | What are the effective shielding and grounding methods used with AC drives? |
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| 5. | What is PID and how is it used? |
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| 6. | Name three factors that cause the efficiency of an AC motor to improve. |
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| 7. | What are the two separate electrical circuits in a DC drive system? |
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| 8. | What is the purpose of the commutator? |
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| 9. | What is the V/Hz ratio? |
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| 10. | Why are the laminations in the armature skewed? |
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| 11. | Where would an operator look in a drive to obtain specific information on status or fault conditions? |
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| 12. | For current to flow, what must be added to overcome resistance? |
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| 13. | What is a pulse tach and how does it work? |
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| 14. | Describe the difference between static and dynamic performance of a closed-loop system. |
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| 15. | What is the difference between a series wound and shunt wound DC motor? |
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| 16. | Why is proper tension control important in a web-fed system? |
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| 17. | Describe what the following circuits are used for in a DC drive:
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| 18. | What NEMA design class would provide the highest amount of starting torque, when connected... |