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Exam 25: Concentricity and Symmetry Tolerances

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Question 1

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Precision balance is a functional requirement of a pendulum.

A) True
B) False

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Question 2

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What are two examples of real-world applications of concentricity or symmetry tolerances on a drawing?

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There are two examples of real-world app...

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What are the two parts needed when verifying a concentricity or symmetry tolerance?

One difference between position (RFS) and concentricity is that position controls the location of the axis of the unrelated actual mating envelope, and concentricity controls the location of a cloud of ____________________ points.

What is a symmetry tolerance?

In certain applications, the function of a part requires defining the concentricity deviation of a cylindrical feature of size relative to a datum axis. In this application, the ____________________ distance between median points of the toleranced diameter and the datum axis is half the concentricity tolerance value.

A symmetry tolerance cannot be verified with dial indicators.

What are two similarities between position and symmetry?

In certain applications, the function of a part requires defining the symmetry deviation of a width feature of size relative to a datum center plane or datum axis. In this application, the symmetry tolerance also limits the ____________________ of the derived median plane.

Concentricity and symmetry tolerances do not affect orientation and form of the axis or center plane of the toleranced feature of size (e.g., parallelism, perpendicularity, straightness or flatness).

A concentricity tolerance can be verified with dial indicators, a CMM, or by other methods.

The tolerance zone shape for symmetry is the space between two ____________________ planes.

Explain concentricity.

The tolerance zone shape for concentricity is the space within a cylinder.

A(n) ____________________ point is the mid-point of a two-point measurement.