OH&S Terms 2

1. hazardous area created by two or more mechanical parts rotating in opposite directions.
7. Most industrial and domestic use of electricity is supplied by alternating current.
8. area on a machine where material is positioned for processing and where work is performed.
15. the potential for a person to become trapped or suffocated in a confined space.
16. the moving parts of machinery and equipment.
18. The way a workers enters or goes into a confined space.
19. The quantity of electricity consumed.
20. dangerous substances mix with the air after ignition has occurred and spreads rapidly.
21. Used to measure voltage.
23. electrical plug that have three wire cords with a grounding conductor.
24. the introduction of a substance into a confined space to displace or remove contaminants.

2. Do not conduct electricity.
3. liquids or solids can free-flow through the space, enclose workers and prevent them from escaping.
4. The way a workers leaves or goes out of a confined space.
5. The load is removed or bypassed.
6. The path of electrical current must make a complete loop in order for the current to flow.
9. Used to measure resistance which is any condition which stops the electrical current.
10. Substances that can pass electricity.
11. A typical 110 volt current wiring has a hot wire carrying current, a neutral wire and a ground wire.
12. liquids, gases, vapours and combustible dusts that can burn and are ignited at normal working temperatures.
13. The joining of metallic parts by means of an electrical conductor.
14. measure of electric current (or electricity).
17. the wire inside the tool or device are insulated.
22. the ability of a substance to cause harmful acute or chronic health effects.
25. An object that connects a piece of electrical equipment to the ground.