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13 Cards in this Set

  • Front
  • Back

How many views are required to represent the important details of most aircraft parts?

One, two, or three views are usually enough

What kinds of parts can be represented by one view drawings?

Parts with uniform thickness such as shims, plates and gaskets.

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.

What is the purpose of a schematic diagram?

They are primarily used for troubleshooting systems.

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.

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.

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.

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.

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.

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.

What is meant by clearance when used on aircraft drawings?

An allowable dimension between two parts.

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.

What are bill of materials?

A list of parts needed to assemble the component shown in the drawing.