1.5 Vocab

The extent to which a given measurement is close to its true value.

• Accuracy

• Precision

A precision measuring device used to measure linear dimensions, thickness, or diameter.

• Dial Caliper

• Ruler

Consistently repeatable.

• Precision

• Accuracy

To initialize or set up a measuring tool to be ready for use.

• Calibrate

• Dimension

A measure in one direction.

• Dimensions

• Conventions

Adding dimensions to a sketch, using arrows to specify the extent of the dimension.

• Dimensioning

• Conventioning

Standards by which something is usually done.

• Conventions

• Dimensions

A thin line, broken in the middle to allow the placement of the dimension value, with arrowheads at each end.

• Dimension Lines

• Extension Lines

Lines that provide a means of displaying the dimension without placing the dimension on the object. They indicate where the dimension starts and ends on the object.

• Extension Lines

• Dimension Lines