___________ conform to national, international, and individual company standards - Dimensions
The accepted national standard in the United States for Dimensioning and Tolerancing is - ANSI Y14.5
Most drawings conform to the _______________, which is metric and uses the millimeter as the
standard unit; or they conform to ________________ with a standard unit of the decimal inch -
International System of Units (SI)
U.S. Standard Customary Unit
Where the dimension is less than one millimeter_________ - a zero precedes the decimal point
Where the dimension is a whole number____________ - neither the decimal point nor the zero is
shown.
Where the dimension exceeds a whole number by a decimal fraction of one millimeter_____________ -
the last digit to the right of the decimal point is not followed by a zero
Neither ________ nor __________ shall be used to separate digits into groups in specifying millimeter
dimensions on drawings - Commas
Spaces
A zero is not used ... - before the decimal point for values less than one inch.
A dimension is expressed to the same number of _______________ as its tolerance.
______ are added to the right of the decimal point where necessary - Decimal Places
, Zeros
Rule 1 of the Fundamentals - Each dimension shall have a tolerance
Rule 2 of the Fundamentals - Dimensioning and tolerancing shall be complete so there is full
understanding of the characteristic of each feature
Rule 3 of the Fundamentals - Each necessary dimension of an end product shall be shown. No more
dimensions than those necessary for complete definition shall be given.
Rule 4 of the Fundamentals - The drawing should define a part without specifying manufacturing
methods
Rule 5 of the Fundamentals - Dimensions should be arranged to provide required information for
optimum readability. Dimensions should be shown in true profile views and refer to visible outlines.
A numerical value expressed in appropriate units of measure and used to define the size, location,
geometric characteristic, or surface texture of a part or part feature - ■ Dimension
A small triangle at the end of dimension lines and leaders to indicate the direction and extent of a
dimension - Arrowhead
A thin, dark, solid line that terminates at each end with arrowheads. The value of a dimension typically is
shown in the center of the dimension line. *A dimension line, along with its arrowheads, shows the
direction and extent of a dimension - Dimension Line
A thin, dark, solid line extending from a point on an object, perpendicular to a dimension line.
*Extension lines are used to indicate the extension of a surface or point to a location preferably outside
the part outline (see Figure 15.10). There should be a visible gap between extension lines and chapter 15
Dimensioning 15-7 15.04 visible lines so the person reading the drawing can distinguish between the
part and the dimensions describing the part. - Extension Line
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller VasilyKichigin. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.48. You're not tied to anything after your purchase.
