AMP - Aviation Maintenance Technician Powerplant Practice Exam

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Prepare for the AMP - Aviation Maintenance Technician Powerplant certification with interactive quizzes. Cover all topics with detailed explanations and hints for each question. Enhance your knowledge and confidence to ace your exam!

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What is used to polish commutators or slip rings?

  1. Double-0 sandpaper

  2. Stiff bristle brushes

  3. Emery cloths

  4. Wet cloth

The correct answer is: Double-0 sandpaper

Double-0 sandpaper is the best option for polishing commutators or slip rings. This is because it is specifically designed for this purpose and provides a smooth and consistent finish. Option B, stiff bristle brushes, may not be as effective as they can leave behind bristles that can interfere with the proper functioning of the commutator. Option C, emery cloths, may be too harsh and abrasive for delicate commutators, leading to damage. Option D, a wet cloth, is not suitable as it can cause the commutator to rust.