Across
- 1. A person who is responsible for directing a vehicle when the driver’s vision is blocked in any way.
- 5. The conducting connection between electrical equipment or an electrical circuit and the earth.
- 6. A structure used to protect workers in trenches.
- 7. A support system designed to prevent a trench or excavation cave-in.
Down
- 2. A device that interrupts and de-energizes an electrical circuit to protect a person from electrocution.
- 3. A formal procedure for taking equipment out of service and ensuring that it cannot be operated until an authorized person has removed the lock and/or warning tag.
- 4. Work done near a hazard but not actually in contact with it.
- 6. Material such as earth removed while digging a trench or excavation.