Free GD&T Quiz

Complete this online GD&T quiz and obtain a free assessment of your geometric dimensioning and tolerancing knowledge. If you answer correctly 14 out of the 16 questions, you may not need any further training. Otherwise, you may want to consider an on-site training course to increase your level of understanding of GD&T and provide others in your company with the same GD&T knowledge.
To answer these questions, you will need to access the engineering drawing by clicking here. For your convenience, you may want to print the drawing before taking the quiz.

Only you know the results of your quiz.

You can visit 2-B Quality’s webpage by clicking here.

If you require an explanation of any of the questions or answers, just contact Bob at (519) 893-6303, or by E-Mail. Bob will be glad to discuss them with you.

All values are in inches, not millimeters. Therefore, placing a zero before the decimal will not be accepted as a correct answer. For example: .010 is correct, not 0.01. This is all explained in the ASME Y14.5M Standard.

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1 The flatness of datum feature D is limited to (specify value):

2 The straightness of the .500 Dia. thru. hole is limited to (specify value):

3 The maximum possible perpendicularity error allowed on the 8X .312 Dia. holes relative to datum A is:

4 The maximum allowable positional error of the largest outside diameter (3.500 Dia.) is:

5 The maximum bonus tolerance permissible for the perpendicularity of datum feature B is (specify value):

6 Is a datum shift possible when verifying the position of the .500 Dia. thru hole? (Yes or No):

7 What is the maximum diametral datum shift possible when verifying the positional tolerance of the outside diameter (3.500 Dia.)? (specify value):

8 If the .500 Dia. thru. hole is produced at .501 Dia. and has a form error of .001, what is the positional tolerance allowed? Do not consider any tolerance resulting from a possible datum shift. (specify value):

9 If the actual virtual size of datum feature B is 2.000 Dia., how much diametral datum shift is allowed when verifying the location of the 3.500 Dia.? (specify value):

10 What is the virtual condition of the .500 Dia. thru hole? (specify value):

11 What is the maximum depth measurement that the slot can be when measured from datum D? (specify value):

12 What is the minimum depth measurement that the slot can be when measured from datum D? (specify value):

13 The flatness at the bottom of the slot is limited to (specify value):

14 What is the maximum flatness error allowed on the large end surface (surface on the left side)? (specify value)

15 The worst case boundary (inner boundary) for the position of the slot relative to datums A & B is (specify value):

16 If the actual mating envelop of the slot is .301, how much positional tolerance does it have? (specify value):

Thank you for completing 2-B Quality's on-line quiz. If you require any explanation for any of these questions, just contact Bob by clicking here and he will be glad to discuss them with you.

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Why do we need Geometric Dimensioning and Tolerancing (GD&T)?

GD&T will save your company money by providing consistent interpretations, increasing manufacturing tolerances and promoting efficiency and quality throughout the engineering, manufacturing and quality functions.

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