Final answer:
The updated safety standard for positioning a machine relative to the edge of an excavation is at least eight diameters side-to-side and fifteen diameters deep to ensure a secure perimeter and minimize accident risks.
Step-by-step explanation:
The correct answer is to position the machine away from the edge of an excavation according to the newer work guidelines, which suggest as much as eight diameters side-to-side and fifteen diameters deep. It's important to use these updated safety measures to minimize the risk of accidents. Historical rules of thumb are outdated and considered unsafe in modern circumstances.
Considering that the deepest mine is less than 4 km deep and the deepest drill hole about 12 km, developing a safe perimeter based on the machine's diameter ensures that we stay within practical and secure limits.
During operations, always maintaining this distance from the edge of an excavation will help prevent incidents, considering the types of risks identified in various contexts, like a bike coasting down an incline or dropping objects from a height.
The correct answer is option 15 diameters deep. When positioning a machine near the edge of an excavation, it is recommended to keep a safe distance to ensure stability and prevent accidents.
The depth and diameter of the excavation play a crucial role in determining the safe distance. According to newer work, it is suggested to position the machine at least 15 diameters deep from the edge. For example, if the excavation is 5 meters in diameter, the machine should be positioned at least 75 meters away from the edge.