The system uses a simple Cartesian coordinate system to specify locations. The error is less than:

• A. 1:1,000
• B. 1:10,000
• C. 1:100,000
• D. 1:1,000,000

Answer: (B)

A simple Cartesian coordinate system has a finite resolution set by the grid spacing you’re using to locate points. The practical accuracy comes from how finely you can read or measure coordinates on that grid. If the grid is designed so that one grid unit represents a 1:10,000 ground distance, locating a point to the nearest grid line yields an error smaller than one grid spacing, which translates to less than about one part in 10,000 of the measured distance. That level of precision matches the 1:10,000 ratio. The coarser options would imply larger errors than this system typically provides, while finer options assume more precision than the basic grid would generally deliver.