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Home > Ordnance Documents and other related manuals > > Comparative Measurement. - OD16530027
Figure 10. Correct And Incorrect Methods Of Using The Electric Sander.
Figure 12. Diagonals Of Cubes Are Always Of Equal Lenght. - OD16530028

Metal Body Repair
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METAL BODY REPAIR - OD1653 - LESSON 1/TASK 1
number of measurements necessary throughout the correction of collision
damage. The measurements taken generally are not necessarily made in inches
or feet, but rather are comparative measurements in which one measurement is
compared, by means of a body tram, to another that should be equal (figure
11).
FIGURE 11. COMPARATIVE MEASUREMENTS.
Vehicle bodies are regarded as having two sides which are exactly the same.
Therefore, if only one side is damaged, it can be compared with measurements
taken on the undamaged side. There is more to comparative measurement than
comparing a damaged panel with a similar but undamaged panel. Occasions
will arise when both sides of a vehicle are damaged, and it will be
impossible to compare one side with the other.
b.
Comparative Measurement.
(1) A metal picture frame is represented by (A) (figure 11) with
opposite sides of equal length. Therefore, the diagonals X and Y are equal.
21






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