If a site plan originally drafted at a scale of 1:500 is redrawn at a scale of 1:1000, which statement correctly describes the impact on measurable features within the drawing?

The ratio of the linear dimension of an element of an object as shown in the drawing to the real linear dimension of the same element is called:

Which scale is used in engineering drawing to read three consecutive dimensions or very small units (e.g., up to 0.1 mm)?