GD&T Quiz - Advanced - Pacific Inspection, Co

Advanced GD&T Quiz
(courtesy of Applied Geometrics, Inc.)

Geometric Dimensioning and Tolerancing Quiz ASME Y14.5 – 2009

So you think you know Geometric Dimensioning and Tolerancing (GD&T)?

Take our real-time interactive quiz. You’ll receive your score immediately after completing the quiz.

This test is for the evaluation of knowledge and skills in Geometric Dimensioning & Tolerancing per the ASME Y14.5 -2009 standard.

Welcome to your GDT Quiz - Advanced

Which statement best describes what the ASME-Y14.5 - 2009 covers?

a) Dimensioning and tolerancing standards for drafting and gaging of rigid mechanical parts.

b) A symbolic means of dimensioning and tolerancing.

c) Dimensioning and tolerancing standard with respect to how parts are manufactured.

d) Establishes uniform practices for stating and interpreting dimensioning, tolerancing, and related requirements for use on engineering drawings and related documents.

Refer to Figure 1 for the following questions:

Using GD&T:

a) Tighter tolerances can be achieved in manufacturing.

b) Creates a means for expressing the true design requirements for a part.

c) More tolerance is made available to manufacturing than is possible with only plus/minus tolerancing

d) Both b) and c)

How can properly implemented GD&T save money in the manufacturing process?

a) Better definition of the design requirements, increased availability of tolerances, better communication between design, manufacturing and inspection, fewer engineering changes.

b) It can't. GD&T is just a way to illustrate how to inspect parts.

c) By creating extra tolerance that did not physically exist without using GD&T.

d) By defining the datum references that must be used by manufacturing for fixturing.

What is a Basic Dimension?

a) An exact dimension with no tolerance associated with it.

b) A dimension in a box that must be strictly adhered to by manufacturing.

c) The nominal size of a feature.

d) A numerical value that describes a theoretically exact size, profile, orientation or location of a feature or a datum target. It is the basis from which permissible variations (tolerances) are established.

What is a Feature Control Frame?

a) A symbolic means of expressing the type of control on a feature, and defining a tolerance zone for that control.

b) A box on the drawing that tells the manufacturer how to make the part.

c) A box on the drawing that tells the inspector what measurements have to be made for every part.

d) A symbol that dictates the tolerance of position for a datum target.

Select the description for each Geometric Characteristic Symbol:

With the same actual datum feature sizes and considered hole size defined in the previous question, how much extra tolerance does the 4-hole pattern have relative to the "center of the part?" (Datum features "B" and "C" define the "Center" of the part.)

a) .010 in one direction and .030 in another direction (and a little rotation)

b) Ø.005

c) .040 total

d) Ø.015 relative to ‘B’ and ‘C’

Complete the next 3 questions using the figure shown below: (all answers should be entered as “.XXX”.)