Across
- 1. Unit of mechanical power
- 3. A basic electric control
- 11. Converts chemical energy to motion
- 12. Light and machinable metal
- 15. Colorful connector
- 20. US currency
- 21. Plywood base of a roof
- 22. Lead and tin
- 23. The simplest of machines
- 25. Sand, gravel and cement
- 26. Reasons for wearing welding gloves
- 29. Frequency unit
- 30. a one-time circuit breaker
- 32. A mixture containg iron
- 33. Provides filler metal and flux for welding
- 35. Plastic pipe, esp. DWV
- 36. A threaded fastener
- 37. A conductor
- 38. A small nail
- 39. Hookup for power implements
Down
- 2. Pressure unit
- 4. A hydraulic actuator
- 5. Holds metal for forging
- 6. About 30 cm
- 7. Joins three pieces of tubing at right angles
- 8. Rate of rotation
- 9. Pulling force
- 10. A soft hammer
- 13. Soft, like lead
- 14. Filled with fluid, for tires
- 16. Breathing protection
- 17. A file for wood
- 18. Mix of metals
- 19. They protect your hands
- 24. Vehicle velocity
- 27. Wooden roof support
- 28. Controls power to the starter motor
- 30. Chemical energy source
- 31. Join two pieces of metal with heat
- 34. A see-saw, for example
- 37. Unit of electrical power