Chapter 10 Flashcards
Which line is thin Dark and has arrows on each end?
Dimension lines
what is the minimum distance between parallel dimensions?
1/4”
Arcs are usually dimensioned using?
the Radius
rounds and fillets are usually dimensioned using:
A general Note
which of the following dimensioning methods should be avoided because it permits the accumulating of errors
Chain Dimensioning
which best describes the shoulder of a leader
the shoulder should be about 1/4” long and should start at the center of either the first or the last line of notes
how many decimal places should be used for dimensioning when the tolerance limits are less than 0.01
at least three
Which of the following statements regarding dimensioning is NOT true:
Current ANSI requirements require the symbol (DIA) preceding ever diameter dimension
If there is a missing dimension on a given drawing you should do what to find it?
Calculate it out using other given dimensions
A note or dimension that applies to a specific item is called a
Local Note
A beveled or sloping edge is a
Chamfer
Good dimensioning practices requires the Drafts person to:
Learn Correct dimensioning Techniques
Learn the rules of dimensioning placement
learn the choices of dimensioning
Which of the following is true about placing dimensions?
avoid placing dimension lines on the object
Dual dimensioning is the placement of _____ and decimal inch dimensioning on the same drawing
Metric
When dimensioning to a high degree of accuracy the ________ method is prefered
quadrants method
every feature must have two dimensions applied or understood, one is the size dimension the other is the ____ dimension
Location
a series of objects having like features but different dimensions often use the ______ dimension
Staggered
round 4.375 to two decimal places
4.38
except in special cases dimension lines meet extension lines at a ______ angle
90 degree
the total amount a feature is allowed to very from the specified dimension
Tolerance
place the dimensions in the place the object is best shown, where the ______ of the object are shown
Contours
A diameter or radius should always be _____ by the diameter and radius symbol respectively
Defined
crossing extension lines is an unacceptable practice
True
Centerlines may not be used as extension lines
False
Crossing dimension lines should be avoided
True
The shoulder of a leader line should begin anywhere within the note
False
Double dimensioning is when two dimensions are places in standard inches and millimeters
False
leaders should never be drawn horizontally or vertically
True
The symbol for a counterbore is a “v” with legs 90 degrees apart
False
A single dimension should be attached to all views for which it is applicable
False
