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13 Cards in this Set
- Front
- Back
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How many views are required to represent the important details of most aircraft parts? |
One, two, or three views are usually enough |
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What kinds of parts can be represented by one view drawings? |
Parts with uniform thickness such as shims, plates and gaskets. |
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What is the name for a part of a drawing used to bring out important details and how is it drawn? |
A detailed view, which is usually drawn to a larger scale than the main drawing. |
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What is the purpose of a schematic diagram? |
They are primarily used for troubleshooting systems. |
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Describe an orthographic projection? |
It is a way of drawing an object using different views at right angles to each other,such as top,front, and side view. |
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Why do manufactures use symbols on aircraft drawings? |
Symbols are a form of shorthand and are used to convey the characteristics of a component with a minimum drawing. |
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Describe the appearance of lines used to show hidden views, alternate position, and the middle of symmetrical objects, and give their proper name? |
Hidden views = are shown with hidden lines, short and evenly spaced dashes. Alternate position = are shown with phantom lines made up of light long and two short dashes . Middle of symmetrical objects= center lines, consisting of alternating long and short dashes.
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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. |
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How are dimensions shown on aircraft drawings, and what is their purpose? |
by the numbers shown in the break of the dimension lines. They provide a means to accurately represent the size of an object. |
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What is the difference between and allowance and a tolerance? |
Allowance is the max and minimum permissible size. The tolerance is the permissible dimension that can be found by adding the plus and minus allowances. |
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What is meant by clearance when used on aircraft drawings? |
An allowable dimension between two parts. |
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What kinds of information about an aircraft drawing can be found in the title block? |
The part or assembly name, drawing size, date, company name, name or initials of the people responsible for creating or approving the drawing. |
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What are bill of materials? |
A list of parts needed to assemble the component shown in the drawing. |
