Unit 1 Flashcards
1
Q
what do FORM TOLERANCES control what?
A
SHAPE
2
Q
What does ORIENTATION TOLERANCES control
A
TILT
3
Q
what does LOCATION TOLERANCES control
A
LOCATION
4
Q
how many geometric characteristics
A
14, 12 because last two arent used
5
Q
what is a basic dimention
A
theoretical perfect dimension
6
Q
limits of size
A
rule #1
7
Q
rule #1 definition
A
defines the size and form limits for features, also requires perfect form at MMC. no relation between features
8
Q
two names for rule #1
A
envelope principle and Taylor principle
9
Q
mating envelope
A
perfect form envelope at MMC check
10
Q
local size
A
spherical cross section check
11
Q
DRF
A
datum reference frame
12
Q
rule #1 what does it limit
A
form and size
13
Q
RFS
A
Regardless of feature size
14
Q
features without size
A
surfaces
15
Q
special rule for form tolerances
A
cannot reference datum
