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Why is a drawing often called a blueprint |
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originally chemical paper that after exposed to strong light turns blue and the drawing white. |
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Provides all the specifications to make a part (Dimensional) |
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Does not show dimensions except for location purposes (Directional) |
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Dimensions & directional information provided (Dimensional & Directional) |
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Used to simplify the explanation of complex circuit |
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a. Convey info concerning the repair of a part or structure b. Illustrate a proposed modification c. provides information for engineering drafters from which they can make standard engineering drawings d. Various other uses where an illustration is necessary to convey technical info |
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How may a wiring diagram be used by a technician? |
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Definition
to show all the wires, wire segments and connections in an electrical system or circuit |
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What is a perspective drawing? |
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Definition
Overall views and for providing location information (parallel lines are shown as converging [Foreshortening]) |
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How does an isometric view vary from a prospective view? |
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Describe what is meant by orthographic projection. |
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Definition
Projections of points on a plane by straight lines at right angles to the plane |
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Explain the importance of the width and type of lines used for aircraft drawings. |
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Definition
It determines if the line is hidden or in front or center of an object |
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Under what conditions may two-view and single-view drawings be used? |
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Show different views or sides of an object |
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When is a detail view used? |
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Shows only a portion of the object but in greater detail than the principal view |
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Location of a hole in/on an object (1/2 in from left, 1/2 in from bottom) |
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Cutting a piece to size (sheet metal 5in x 5in) |
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Where is a dimension placed when it is common to two views? |
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What unit of measurement is generally used for dimensions of aircraft drawings? |
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Definition
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What is a limit when used with a dimension? |
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Explain what is meant by tolerance. |
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Definition
Total permissible variation of a size |
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Term
What type of information is contained in the title block of a drawing? |
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Definition
All necessary information that is not shown in or near the actual drawings |
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What is the significance of the drawing number? |
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Identify the basic drawing number and the sheet number |
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What is meant by right-hand and left-hand parts? |
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Definition
To identify left & right view of an object |
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With respect to a drawing, what is meant by scale? |
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Definition
All measurements directly proportional to the measurements directly proportional to the measurements of original object |
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What is another term for the material listing of a drawing? |
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Why are notes found on a drawing? |
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Information that cannot be given completely and yet briefly in the title block |
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What is meant by process code? |
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Definition
Simplify the instructions required on drawings and consume less space than would otherwise be required |
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Drawing used for the fabrication or assembly of components are called... |
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Production drawings Working Drawings |
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Production drawings can be categorized as... |
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Detail drawings assembly drawings installation drawings |
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Term
A(n) ________ drawing will provide all specifications (size, shape, and material) needed to make the part. |
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A(n) ________ drawing shows how parts fit together to form a component. |
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A(n) ________ drawing is similar to a ________ and shows the parts as they would appear to the eye. |
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A(n) ________ drawing shows how a part or component is installed in the aircraft. |
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A(n) ________ diagram is a drawing used to simplify the explanation of complex circuits. |
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A(n) ________ diagram shows the ________ location of components within a system without regard to the ________ location of the components in the aircraft. |
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Definition
Schematic Functional Physical |
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A(n) ________ diagram shows all the wires, wire segments, and connections in an electrical system or circuit. |
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Because of the complexity of electronic systems and the use of ________ systems involving solid-state electronic units, it has been necessary to simplify system drawings using ________ that have meaning to the electronic technician. |
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In a(n) ________ drawing parallel lines will be shown as ________,which produces an effect known as foreshortening. |
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The ________ view is similar to the perspective, but the lines are drawn ________ and the ________ of each line is true to scale. |
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A(n) ________ projection shows equal distances on the subject as equal distances on the drawing. |
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With isometric projection, all vertical lines are drawn as ________ and all horizontal lines are drawn at an angle of ________%. |
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The three views most commonly used for orthographic projection are the ________, ________, and ________ side views. |
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Most drawings use three widths, or intensities, of lines... |
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The visible outline (object line) is a ________ to ________ line and should be the outstanding feature of the drawing. |
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The ________ outline is a medium-width line made up of short dashes |
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The ________ line is drawn narrow, or thin, and consists of alternate long and short dashes. |
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The ________ line is used to show alternate positions for an installed part. |
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The dimension line is a(n) ________ line and is unbroken except where a(n) ________ is written in. |
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The ________ line is a heavy, wide, broken line usually made up of ________ long and ________ short dashes, alternately spaced. |
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When a surface has been cut away to reveal a hidden or inner feature of an object, ________ lines are used. |
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A curved surface or a circle appears in that form in only one view. In other views, the curve or the circle is shown as a(n) ________ line. |
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A(n) ________ view is obtained by cutting away part of an object to show the shape or construction at the ________ plane. |
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A(n) ________ view shows only a portion of the object but in greater ________ than the principal view. |
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________ are required on any drawing used to fabricate or repair parts. |
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When locating holes for drilling, the technician uses ________ dimensions. |
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When cutting a piece of stock to the size and shape for a part, ________ dimensions are used. |
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Dimensions common to two views are usually placed ________ the views. |
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Holes to be drilled in a part are located by dimensions to the ________. |
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A hole will often be dimensioned by the ________ of the ________ to be used. |
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Curved surfaces are often dimensioned as a ________ from a specified point. The dimension would be shown with a view that shows the curve as an ________. |
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The Dimensions on a drawing that represent the normal size are sometimes called the ________ dimensions. |
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All Basic dimensions will have ________, or applicable ________ and ________ sizes. |
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Definition
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The ________ is the total permissible variation of a size. |
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A(n) ________ is a prescribed difference between the maximum material limits of ________. |
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The ________ is usually printed in large numerals in the lower right-hand corner of the title block. |
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Each part of an aerospace vehicle always has a(n) ________ of its own. |
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An aircraft has many mirror image parts. To reduce the amount of paperwork it is common practice to show the part for one side in the drawing and indicate the other side as ________. |
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A(n) ________ system can be used to help find the location of fuselage frames, wing frames, and stabilizer frames. |
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Information that cannot be given completely and yet briefly in the title block is placed on the drawing in the form of ________, but does not ________ information given elsewhere in the same. |
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A(n) ________ is a visible sign used instead of words to represent ideas, operations, quantities, qualities, relations, or positions. |
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Definition
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To simplify changes, the symbol for ________ is often used to refer to all metals. |
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Drawing with the use of a computer |
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Computer Aided Design Drafting |
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Computer Aided Manufacturing |
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Computer Aided Engineering |
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What are Sectional drawings? List 4 |
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Definition
Shows the internal construction or shape of a part. 1. Revolved Section 2.Remove section 3. Complete section 4. Half section |
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Used for illustrated parts catalog |
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A cylindrical flat-bottomed hole that enlarges another coaxial hole |
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A Conical enlargement of a hole. |
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Often takes the form of a very shallow counterbore |
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The total permissible variation in size |
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Difference between the maximum material limits of mating parts. |
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