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GENERAL
AIRCRAFT DRAWINGS
| Question | Answer |
|---|---|
| What is meant by tolerance on an aircraft drawing? | The allowable plus or minus variation from the dimension given on the drawing. |
| How is the alternate position of a part shown on an aircraft drawing? | By a thin line made up of a series of long dashes separated by two short dashes. |
| What is the purpose of a cutting plane on an aircraft drawing? | It shows where an object has been cut to allow the auxiliary drawing to be made. The arrows on a cutting plane show the direction the auxiliary drawing is viewed. |
| How are dimensions shown on an aircraft drawing? | By numbers shown in the break of a dimension line. |
| How can you know that the aircraft drawing you are using is the most current version of the drawing? | By the number in the revision block and by the log of the most recent drawings. |
| How many views can there be in an orthographic projection? | Six. |
| How many views are used to show most objects in an aircraft drawing? | Three. |
| Where is the title block normally located on an aircraft drawing? | In the lower right-hand corner of the drawing. |
| What is the purpose of a center line on an aircraft drawing? | This is the line that shows the center of the object in the drawing. |
| What is a fuselage station number? | The distance in inches from the datum, measured along the longitudinal axis of the fuselage. |
| What is meant by clearance on an aircraft drawing? | The amount of space, or separation, that is allowed between two components or parts. |
| What information is given in the title block of an aircraft drawing? | - The name and address of the company who made the part - The name of the part - The scale of the drawing - The name of the draftsman - The name of the engineer approving the part - The number of the part (the drawing number) |