Datum is best described as what?

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Get ready for the IGCSE Design and Technology (DT) exam with our comprehensive quiz. Study with multiple choice questions and detailed explanations to boost your confidence and ace your test!

Multiple Choice

Datum is best described as what?

Explanation:
A datum is a reference surface, line, or point used to establish the origin and orientation for measuring a part. In practice, it’s usually a flat face or straight edge that becomes the base from which all dimensions are taken, ensuring measurements are consistent and repeatable during inspection and assembly. The other ideas describe a decorative curved feature, a fastener, or a tolerance specification, which are not used as the measurement reference.

A datum is a reference surface, line, or point used to establish the origin and orientation for measuring a part. In practice, it’s usually a flat face or straight edge that becomes the base from which all dimensions are taken, ensuring measurements are consistent and repeatable during inspection and assembly. The other ideas describe a decorative curved feature, a fastener, or a tolerance specification, which are not used as the measurement reference.

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