Final answer:
The correct tool to use when excavating underground utilities when they intersect or cross is neither of the above options. Instead, specialized vacuum excavation tools should be used.
Step-by-step explanation:
In the context of excavating underground utilities, it is important to use the right tools to avoid damaging the utilities and ensure safety. When utilities intersect or cross, neither of the above tools should be used. Instead, specialized tools such as vacuum excavation tools should be used.
Vacuum excavation tools, also known as non-destructive excavation tools, are designed specifically for this purpose. They use a combination of high-pressure water and a vacuum to safely expose and excavate utilities without causing damage. These tools are commonly used in the engineering and construction industries.
By using vacuum excavation tools, workers can reduce the risk of accidental utility damage, prevent service disruptions, and ensure the safety of the excavation process.