When Using Composite Positional Tolerancing the Upper Part of the Feature

question 53

Short Answer

When using composite positional tolerancing the upper part of the feature control frame is the _____________________ control and specifies the larger positional tolerance for the pattern of features as a group. The lower entry is called the ____________________ control and specifies the smaller positional tolerance for the individual features within the pattern.

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Definitions:

Isotope

Atoms of the same element with the same number of protons but different numbers of neutrons, leading to different atomic masses.

Element

An element is a substance consisting of atoms which all have the same number of protons, classically considered the simplest substances that cannot be broken down using chemical reactions.

Isotope

Atoms of the same element that have the same number of protons but different numbers of neutrons, resulting in different mass numbers.

Magnesium

A chemical element with the symbol Mg and atomic number 12, known for its low density and high strength, used in alloys, fireworks, and medical applications.