Total runout (runout tolerance)[two arrows] - 3D control for rotating parts relative to a datum axis.
(cylindrical surface = controls circularity, straightness, taper, concentricity, and surface profile; flat
surface = controls wobble, perpendicularity, and flatness)
Basic dimensions (those with a box around them)... - are theoretically exact and locate the perfect
position of features from clearly identified datums
The feature control frame - contains the geometric characteristic symbol, the geometric tolerance, and
the relative datums
Free running fit - not for use where accuracy is essential, but are good for large temperature variations,
high running speeds, and heavy journal pressures
A dimension is expressed to the same number of inches of decimal places as its ________. Zeros are
added to the _____ of the decimal point where necessary - tolerance; right
ASME stands for - American Society of Mechanical Engineers
Most drawings conform to the ______ system or they conform to the ____ system - SI; U.S. Customary
Where the dimension is less than one millimeter... - a zero precedes the decimal point
Where the dimension is a whole millimeter... - 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
T/F commas and spaces shall be used to separate digits into groups in specifying millimeter dimensions
on drawings - false
, T/F A zero is not used before the decimal point for values less than one inch - true
contour rule or contour dimensioning - each dimension should be placed in the view where the contour
shape is best shown
T/F Dimensions should appear multiple times in different views on a drawing - false, they should only
apper once
Dimensioning and tolerancing shall be complete so that... - there is full understanding of the
characteristic of each feature
circles are typically dimensioned as - diameters
arcs are dimensioned as - radii
T/F you should give dimensions between holes vs dimensioning the holes from the end of the part - True
Baseline Dimensioning - all of the dimensions in a given direction originate from a base or datum
(frequently used for CNC machines)
Chain Dimensioning - features are dimensioned relative to one another (used when a part function
requires that features be related to one another)
T/F chain dimensioning is often preferred over baseline - False, Baseline dimensioning is prefrred
Chain dimensioning usually yields the _______ accumulation of tolerance between features,where the
maximum distance between features is... - largest; equal to the sum of the intermediate distances
dimension only to _______ or _______ lines - visible; solid
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