Where is the drawing scale located in a standard blueprint?

In a standard blueprint, the drawing scale is typically found in the upper-left corner. This placement allows for easy access and visibility for the person reviewing the blueprint. The scale is essential for interpreting the dimensions of the drawing accurately, as it indicates how measurements in the blueprint correspond to actual measurements in the physical world. The upper-left corner is a logical choice for this information, as it is one of the first areas a viewer usually looks at when examining the details of a blueprint.

The other locations mentioned, such as the center or bottom edges of the blueprint, may not provide the same level of accessibility or visibility for important information like the drawing scale. Thus, having it in the upper-left corner helps ensure that anyone using the blueprint can quickly find the scale they need to make accurate measurements.