What does the position symbol look like?

• A. A circle with a cross in the middle
• B. Three horizontal parallel lines with the middle one longer than the others
• C. An arrow going to the top right at a 45 degree angle
• D. Two arrows going to the top right at a 45 degree angle

Answer: (A)

The correct representation of the position symbol in GD&T consists of a circle with a cross in the middle. This symbol indicates that a feature's location is controlled with respect to a datum reference frame. The cross inside the circle signifies that the tolerance applies to the exact position of features, allowing for the assessment of how well a feature's actual location matches its true intended position.

This position control is crucial for ensuring parts fit together properly within an assembly, as it defines the permissible deviation from the true position of features. Understanding this symbol is essential for interpreting engineering drawings and tolerances accurately, making the correct identification of this symbol important for professionals working with GD&T.