Sketches, Drawing and Prints and Limits, Fits and Tolerances Flashcards
What are the three (3) types of pictorial drawing?
- Perspective
- Oblique
- Isometric
On what is allowance based on?
MMC- maximum metal condition
Most orthographic drawings show which 3 views?
- Front
- Top
- Right side view
What does ISO stand for?
International Organization for Standardization
The revision block should include?
- A revision Number
- A Description
- A Date
- Who made the changes
An object or visible line is shown as?
Thick Dark Lines
What is CW means?
Clock-Wise
What is a Revision?
is a change or correction on the original drawing
What does CCW stand for?
Counter Clock Wise
How can an (S) shape be distinguished from a (W) shape?
By the Flange Shape
What are the two shapes that have tapered flanges?
“C” and “S” shapes
What is the purpose of a Section Drawing?
it allows you to see inside a work piece
The two types of orthographic projection drawings are?
- First Angle
* Third Angle
What angle of view is the method widely used to draw an orthographic projection print?
Third Angle
Third Angle orthographic projection can be shown by what is called?
A Glass box theory
The typical sectional views are?
- Full section
- Half section
- Removed section
- Revolved section
- Broken-out section
- Offset section
- Aligned section
The intentional difference between mating parts at MMC?
is allowance
What are the three types of fits?
- Clearance fit
- Interference fit
- Transition fit
The variation size of two mating parts from the basic size to the total amount of this permitted variation is called?
Tolerance
The kind of tolerance, where the variation is one direction only is called?
Unilateral tolerance
The type of tolerance with variation in size that can be in either direction from the basic size is called?
Bilateral tolerance
Type of fit when the shaft will always fit into the mating hole at MMC?
Clearance fit
When the shaft diameter is larger than the mating hole diameter?
Interference fit
When the mating parts may have some clearance or some interference when assembled is called?
Transition fit
HRMS
Hot Rolled Mild Steel