GD&T Composite Feature Control 2

Question 1

In a composite feature control frame, the upper segment is called the:

Accepted Answer

Pattern-Locating Tolerance Zone Framework (PLTZF)

Answer

Feature-Relating Tolerance (FRT)

Answer

Feature Level Control (FLC)

Answer

Feature Control Tolerance Zone (FCTZ)

Question 2

Which datum references are typically included in the Feature-Relating Tolerance Zone Framework (FRTZF) of a composite callout?

Accepted Answer

Only orientation datums, no location datums

Answer

All datums from the PLTZF

Answer

No datums at all

Answer

Additional datums not in the PLTZF

Question 3

A composite positional tolerance has PLTZF of ⌀0.8 and FRTZF of ⌀0.3. What does ⌀0.3 control?

Accepted Answer

The spacing between individual features within the pattern

Answer

The location of the pattern from datums B and C

Answer

The size tolerance of each feature

Answer

The perpendicularity of each feature to datum A only

Question 4

Can a composite feature control frame be used with profile of a surface tolerances?

Accepted Answer

Yes, composite profile tolerances are explicitly defined in ASME Y14.5

Answer

No, composite frames are only valid for position tolerances

Answer

Yes, but only for internal features

Answer

No, profile uses bilateral tolerances exclusively

Question 5

When a datum reference is repeated in both the PLTZF and FRTZF of a composite callout, what does it mean in the lower segment?

Accepted Answer

It restricts the FRTZF from translating relative to that datum

Answer

It has no effect in the lower segment

Answer

It doubles the tolerance value

Answer

It applies the tolerance to that datum feature only

Question 6

Two single-segment position callouts differ from a composite callout because:

Accepted Answer

Each segment of a two single-segment callout independently locates features from its referenced datums

Answer

Two single-segment callouts cannot reference the same datums

Answer

Two single-segment callouts always have larger tolerances

Answer

Two single-segment callouts apply only to patterns of two features

Question 7

In composite tolerancing, which condition must always be true regarding the PLTZF and FRTZF tolerance values?

Accepted Answer

PLTZF must be larger than or equal to FRTZF

Answer

FRTZF must be larger than PLTZF

Answer

Both tolerance zones must be equal

Answer

PLTZF applies only at MMC