Which method is commonly employed for dimensioning holes?

• A. Single line indication
• B. Coordinate dimensioning
• C. Radial measurement
• D. Elevation dimensioning

Answer: (B)

The method commonly employed for dimensioning holes is coordinate dimensioning. This technique involves specifying the position of the hole using a set of coordinates that are referenced from a known point or edge on the drawing. This is particularly effective because it provides precise information about the location of the hole in relation to other features of the object. Using coordinates simplifies the interpretation of the drawing, making it easier for engineers and fabricators to accurately produce the part.

Coordinate dimensioning is beneficial in complex shapes where multiple features need to be defined with respect to one another. This method allows for a clear and organized representation of the geometry, avoiding potential confusion when identifying the locations of multiple holes or features on the design.