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32 Cards in this Set

  • Front
  • Back
What views are used to depict flat object?
Top views
Describe a acme screw thread
genreal; 29 degree included angle
describe a situation when a half section needs to be used.
Used when both interior and exterior features must be shown
What are the two units of measure used to indicate surface roughness?
1. microinches
2. micrometers
What view are used to describe most parts found in an assembly?
Front view , top view and side view
Whats the purpose of finish marks?
to show machined finished surfaces
Describe a situation when a full section needs to be shown
when ALL details need to be shown.
idnetify the purpose of a roughness value of 8 microinches.
such parts as surfaces of cylinders
when are auxiliary views in a working drawing?
Angled parts(incline). That needs to be shown at true suze & shape.
The assembly drawing we did of the shaft support was a general assembly.How do you know this?
No dimensions. Broken section
when dimensionin an angled surface in an auxiliary view, what dimensioning tool would you use?
True(dimension size with arrow)
Identify a purpose for the roughness value of 125 microinches.
mating surfaces held together by a bolt or rivet with no motion between them
What views are used to describe simple cylindrical parts?
side view & end view
describe a square screw thread
great power and force in both directions
What is a cell?
A file(symbol) of a standard part.
Do outline assmeblies include dimensions?
Yes , overall dimensions; center to center
Threaded fastneners are considered to be ------ fasteners
Identify a purpose for a roughness value of 16 microinches.
high speed shaft bearing & extreme tension members
Why are left handed threads sometimes specified?
When the torque of the fastener would loosen a right hand thread
Describe a situation when an offset section must be shown.
Used when features are not lined up.
How does a draft person indicate the difference between an external fastener(bolt) and an interior fastener(nut)?
A - external
B - internal
describe a buttress screw thread
great power and force in 1 direction3+
Threaded fastneners are considered to be ------ fasteners
What does thread SERIES mean?
number of threads/ outside diameter
WHat are multiple lead threads used for?
for rapid advancement of parts
Describe a unfied screw thread
most common; 60 degree angle
Rivets are considered to be
------ fasteners
Idnetify 3 types of assmebly drawing
1. Detailed
2. General assmelby
3. outline assmebly
Identify 3 ways threads can be on a drawing
1. detailed
2. simplified
3. schematic
Do general assmeblies include dimensions?
How can a cell be used to improve drawing performance?
It can be inserted into any other drawing file at any given scale
what is meant by the term thread CLASS?
HOw accurate the part is made