GD&T

Dimension is specified in the form of?

• length

• angle

• location

• centre distance

The correct definition of tolerance

• The difference between upper limit and lower limit of a part

• The difference between MMC and LMC of single part

• The geometric characteristic of the size

• The total permissible variation on its size

The ASME standard of geometrical dimensioning and tolerances (GD&T)

• Y14.3

• Y14.5

• Y14.6

• Y14.8

Name the GD&T symbol

• Feature Control Frame

• Datum Feature

• Basic Dimension

• Limit of Size

Interprate the feature control frame

• The perpendicularity of the feature must be within a 0.2 tolerance zone relative to Datum A and B at maximum material condition

• The perpendicularity of the feature must be within a 0.2 diametrical tolerance zone relative to Datum A and B

• The perpendicularity of the feature must be within a 0.2 diametrical tolerance zone relative to Datum AB

• The perpendicularity of the feature must be within a 0.2 tolerance zone

The importances of GDnT?

• Saves money

• Ensures design, dimension, and tolerance requirements as they relate to the actual function

• Provides uniformity

• A universal understanding of the symbols instead of words

The definition of allowance

• The condition where a size feature contains the maximum amount of material within the stated limits of size

• Nominal dimension from which tolerances are derived

• Difference between the least material condition of two mating parts

• Difference between the maximum material condition of two mating parts

Name the compartment labeled with X

• Datum References

• Tolerance Zone

• Tolerance Information

• Geometric Symbol

The .......... of the feature must be within a 0.03 diametrical ............ at ........... relative to datum A, B and C

• position, tolerance zone, maximum material condition

• position, tolerance zone, least material condition

• concentricity, tolerance zone, maximum material condition

• roundness, tolerance, least material condition

Value the MMC and LMC of the feature given

• MMC = 9.025, LMC = 8.975

• MMC = 8.975, LMC = 9.025

• MMC = 8.975, LMC = 9.25

• MMC = 9,25, LMC = 8.95