Aircraft Drawings Flashcards
How many you bring out important details of a part an aircraft drawing?
A detail view draw to a larger scale
Describe information found in the title block of a blueprint
Drawing size, part, or assembly name, scale, date, draftsman, film, checker, approving official
What is the difference between an allowance and tolerance use on aircraft blueprints?
Allowance - is the difference between the nominal dimension, and the maximum and minimum permissible sizes
Tolerance - the sum of the positive and negative allowance figures
Describe bill of materials
A list of materials and parts necessary to fabricate or assemble a component or system
Define clearance as used on aircraft blueprints
Clearance is a dimension allowable between parts
What is an orthographic projection?
It is a way of drawing an object using different views - such as top, front, and side view
What might one view drawings represent in aircraft blueprints?
Objects of uniform thickness, gaskets, shims and plates
One, two and three view drawings are commonly used for
Showing a shape of an object
What type of diagram with a mechanic use for troubleshooting?
Schematic diagrams
How are dimension lines shown on aircraft drawings?
Solid lines broken at midpoint for the insertion of measurements
Where is the revision block normally located?
Adjacent to the title block, or at top right hand corner
How are aircraft drawing changes identified?
Changes are usually listed as revisions
How can you determine if a drawing has been changed?
A record of the changes is listed, either in a revision block or in ruled columns, which may be in a corner of the drawing or next to the title block
Describe a center line
Alternate long and short dashes
Describe a phantom line
One long and two short, which also shows alternate positions
