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This is the theoretically exact size from which limits of size are determined:

Actual Size
Dimensioned size
Production size
Basic size

Correct Answer: Basic size

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More Questions from Tolerancing

Acceptable parts must not extend beyond this:
When lines intersect on a drawing at angles of this many degrees, it is customary not to dimension the angle:
Unilateral tolerances have traditionally been given on angles.
Allowance is the maximum clearance or minimum interference specified to achieve a fit between two mating parts.
Implied 90 degree angles typically have different general tolerances applied to them than other angles covered by a general note.
Nominal size is used for general identification and is usually expressed in decimals.
Tolerances of form and position are typically not used to control straightness.
Defining the datum reference frame is necessary to apply GDT principles.
Datum surfaces and features are used as references to control other features.
Geometric dimensioning and tolerancing can simplify the inspection process.

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