A datum target is used when:
A)there is not enough detail to merit the use of a feature control frame.
B)it is not practical to identify an entire surface as a datum feature.
C) a datum point is not seen in any of the three primary views.
D) the flatness of a surface has too many irregularities.

Question

Quizplus · Accepted Answer

Datum targets are used when it is not practical to identify an entire surface as a datum feature, allowing for specific points, lines, or areas on a part to be designated for establishing a datum. This is useful for complex or irregular surfaces where using the entire surface would not provide a stable or accurate datum.

A Datum Target Is Used When