Aircraft Drawings Flashcards
What type of line is normally used in a drawing or blueprint that indicates invisible edges or contours?
Medium-weight short dashes evenly spaced
- A detail drawing is a description of a single part
- An assembly drawing is a description of an object made up of two or more parts
Both No.1 and No.2 are true
A specific measured distance from the datum or some other point identified by the manufacturer, to a point in or on the aircraft is called
station number
Which statement is true regarding an orthographic projection?
One-view, two-view and three-view drawings are most common
A line used to show an edge which is not visible is a
hidden line
What type of drawing line consists of alternating long and short dashes?
Centre
- Schematic diagrams indicate the location of components with respect to each other within the system
Only No.2 is true
Which statement is applicable when using a sketch for making a part?
The sketch must show all information to manufacture the part
For sketching purposes, almost all objects are composed of one or some combination of six basic shapes; these include
triangle, circle, cube, cylinder, cone and sphere
In a sectional vie drawing, what sections illustrate particular parts of an object?
Removed
What should be the first step of the procedure in sketching an aircraft wing skin repair?
Block in the views
A simple way to find the centre of a circle on a sketch or drawing, or a circular piece of material is to
draw two non-parallel chord lines across the circle and then their corresponding perpendicular bisector lines
- On occasion, a mechanic may need to make a simple sketch of a proposed repair to an aircraft, a new design or a modification
Only No.2 is true
Working drawings may be divided into three classes. These are:
detail drawings, assembly drawings and installation drawings
What is the class of working drawing that is the description/depiction of a single part?
Detail drawing
Sketches are usually made easier by the use of
graph paper
What material symbol is frequently used in drawings to represent all metals?
Cast iron
What is used to indicate that a surface must be machined finished?
Finished marks
Zone numbers on aircraft blueprints are used to
locate parts, sections and views on large drawings
Which of the following terms is/used to indicate specific measured distances from the datum and/or other points identified by the manufacture, to points in or on the aircraft?
3. Station Numbers
- Station numbers
In order to locate wing and stabilizer frames, what numbering system is used?
Station numbers
One purpose for schematic diagrams is to show the
functional location of components within a system
When reading a blueprint, a dimension is given as 4.387 inches +.005, -.002. Which statement is true?
The minimum acceptable size is 4.385 inches
When reading a blueprint, a dimension is given as 4.387 inches +.003, -.002. Which statement is true?
The maximum acceptable size is 4.390 inches
