Question 1

Wherever Rule #1 applies to a cylindrical regular feature of size, an indirect straightness deviation requirement exists for the derived median line of the feature of size.

Accepted Answer

Rule #1 for cylindrical regular features of size states that the axis or median plane of the feature must be contained within a cylinder of size tolerance zone. As a result, any deviation from straightness of the derived median line of the feature also affects the size and form of the feature. Therefore, an indirect straightness deviation requirement exists for the derived median line of the feature of size wherever Rule #1 applies.

Question 2

Although Rule #1 provides an indirect straightness tolerance, a straightness tolerance should be specified on surface elements, unless it is a refinement of the dimensional limits of the size dimension (i.e., size tolerance).

Accepted Answer

False

Question 3

Define a derived median line.

Accepted Answer

A derived median line is an imperfect line formed by the center points of all cross sections of a feature of size. These cross sections are perpendicular to the axis of the unrelated actual mating envelope of the feature of size.

Question 4

When verifying a straightness tolerance applied to surface elements, what are the three separate requirements that must be checked?

Accepted Answer

The answer of When verifying a straightness tolerance applied to...

Question 5

Wherever Rule #1 applies to a cylindrical feature of size, it invokes an indirect straightness deviation requirement on the surface elements.

Accepted Answer

This is because Rule #1 states that the axis of the cylinder must be straight and must lie within a specified tolerance zone. Therefore, the surface elements must also be straight within a certain tolerance to ensure that they conform to the cylindrical shape.

Question 6

Explain how to determine whether a straightness tolerance is applied to a surface element or a feature of size.

Accepted Answer

The answer of Explain how to determine whether a straightness...

Question 7

Where a straightness tolerance is applied to surface elements that are associated with a size dimension, and Rule #1 applies to the size dimension, the straightness tolerance value must be less than the ____________________ tolerance.

Accepted Answer

The answer of Where a straightness tolerance is applied to...

Question 8

A(n) ____________________ is a device that applies the use of optics to measure part geometry.

Accepted Answer

The answer of A(n) ____________________ is a device that applies...

Question 9

Where a straightness tolerance is applied to a cylindrical feature of size, the ____________________ must be located within the tolerance zone and the tolerance zone is not related to any datums.

Accepted Answer

The answer of Where a straightness tolerance is applied to...

Question 10

Where a straightness tolerance is applied to a surface element that is associated with a size dimension, and Rule #1 does not apply to the size dimension (i.e., overridden, independency, stock size, etc.), the straightness tolerance value may be smaller than the size tolerance.

Accepted Answer

The answer of Where a straightness tolerance is applied to...

Question 11

What are the three things that should come to mind wherever a straightness tolerance with the MMC modifier is associated with a feature of size dimension?

Accepted Answer

The answer of What are the three things that should...

Question 12

What are the two tolerance zone shapes a straightness tolerance can have?

Accepted Answer

The answer of What are the two tolerance zone shapes...

Question 13

Where the feature of size is at ____________________, the derived median line of the feature of size must be perfectly straight.

Accepted Answer

The answer of Where the feature of size is at...

Question 14

A straightness tolerance is a geometric tolerance that defines the straightness deviation permitted on individual surface elements or on a derived median line.

Accepted Answer

As per the definition of straightness tolerance, it is a geometric tolerance that defines the straightness deviation permitted on individual surface elements or on a derived median line. Therefore, the statement is true.

Question 15

____________________ is the condition where an element of a surface, or a derived median line, is a straight line.

Accepted Answer

The answer of ____________________ is the condition where an element...

Quiz 10: Straightness Tolerance

Wherever Rule #1 applies to a cylindrical regular feature of size, an indirect straightness deviation requirement exists for the derived median line of the feature of size.

Although Rule #1 provides an indirect straightness tolerance, a straightness tolerance should be specified on surface elements, unless it is a refinement of the dimensional limits of the size dimension (i.e., size tolerance).

Define a derived median line.

When verifying a straightness tolerance applied to surface elements, what are the three separate requirements that must be checked?

Wherever Rule #1 applies to a cylindrical feature of size, it invokes an indirect straightness deviation requirement on the surface elements.

Explain how to determine whether a straightness tolerance is applied to a surface element or a feature of size.

Where a straightness tolerance is applied to surface elements that are associated with a size dimension, and Rule #1 applies to the size dimension, the straightness tolerance value must be less than the ____________________ tolerance.

A(n) ____________________ is a device that applies the use of optics to measure part geometry.

Where a straightness tolerance is applied to a cylindrical feature of size, the ____________________ must be located within the tolerance zone and the tolerance zone is not related to any datums.

Where a straightness tolerance is applied to a surface element that is associated with a size dimension, and Rule #1 does not apply to the size dimension (i.e., overridden, independency, stock size, etc.), the straightness tolerance value may be smaller than the size tolerance.

What are the three things that should come to mind wherever a straightness tolerance with the MMC modifier is associated with a feature of size dimension?

What are the two tolerance zone shapes a straightness tolerance can have?

Where the feature of size is at ____________________, the derived median line of the feature of size must be perfectly straight.

A straightness tolerance is a geometric tolerance that defines the straightness deviation permitted on individual surface elements or on a derived median line.

____________________ is the condition where an element of a surface, or a derived median line, is a straight line.