Question 1

Where a position tolerance applies at RFS, it is interpreted as a boundary tolerance zone.

Accepted Answer

A position tolerance at RFS (Regardless of Feature Size) is interpreted as a cylindrical or spherical tolerance zone, not a boundary tolerance zone.

Question 2

Where a position tolerance is applied at RFS, what three conditions apply?

Accepted Answer

Where a position tolerance is applied at RFS:
1. The axis interpretation is used.
2. The axis of the unrelated actual mating envelope must be located within the tolerance zone.
3. The orientation is controlled relative to the primary datum referenced.

Question 3

____________________ position is the theoretically exact location of a feature of size as established by basic dimensions.

Accepted Answer

The theoretically exact location of a feature of size is established by basic dimensions, which define the nominal size and positional relationship of features on a part. The position can be represented by geometric symbols such as datum features, which allow for precise measurement and control of the feature's location.

Question 4

List the six important advantages of using position tolerance in comparison to coordinate tolerance.

Accepted Answer

The answer of List the six important advantages of using...

Question 5

Where a position tolerance is specified at RFS and applied to a(n) ____________________, the center plane interpretation applies.

Accepted Answer

The answer of Where a position tolerance is specified at...

Question 6

A position tolerance is always applied to a feature of size or pattern of features of size.

Accepted Answer

This is correct. The position tolerance is used to control the location of a feature of size or pattern of features of size, and is always applied to those types of features.

Question 7

What are the two common tolerance zones shapes for a position tolerance?

Accepted Answer

The answer of What are the two common tolerance zones...

Question 8

____________________ is the default condition for the tolerance value and size datums referenced at RFS.

Accepted Answer

The answer of ____________________ is the default condition for the...

Question 9

Basic dimensions are required to locate and orient the feature(s) of size relative to the datum features referenced in the feature control frame.

Accepted Answer

Basic dimensions provide the necessary measurement information to locate and orient the feature(s) of size in relation to the datum features specified in the feature control frame. Without basic dimensions, it would be impossible to determine the exact placement and orientation of the feature(s) of size relative to the datum features.

Question 10

What are the four requirements to correctly specify a position tolerance?

Accepted Answer

The answer of What are the four requirements to correctly...

Question 11

Position tolerances are commonly used to control four types of part relationships. Name them.

Accepted Answer

The answer of Position tolerances are commonly used to control...

Question 12

Where a position tolerance is specified at ____________________, the tolerance zone is a virtual condition boundary located at the true position of a feature of size which the surface(s) of the feature of size must not violate.

Accepted Answer

The answer of Where a position tolerance is specified at...

Question 13

In an RFS application, the position tolerance zone is a constant value, regardless of the size of the toleranced feature of size.

Accepted Answer

The position tolerance zone is a constant value regardless of the size of the toleranced feature of size.

Question 14

A position tolerance applied to a feature of size affects its size.

Accepted Answer

Position tolerance controls the location and orientation of the feature without affecting its size.

Question 15

Where a position tolerance applies at ____________________, the axis/center plane interpretation is used.

Accepted Answer

The answer of Where a position tolerance applies at ____________________,...

Quiz 20: Position Tolerance - Introduction