Across
- 3. A small T-shaped steel piece used to open and close the chuck on power drills
- 4. The common power supplied to most all wired devices
- 5. minute, The rotational speed of a motor or shaft, based on the number of times it rotates
- 6. protection, Protection against short circuits
- 7. A clamping device that holds an attachment
Down
- 1. An electric power source that flows in one direction only
- 2. circuit interrupter, A circuit breaker designed to protect people from electrical shock and to protect equipment from damage