Question

what is one way that an engineers scale differs from an architects scale?
uses fractional values
is only used for drawings of machinery
cannot be used to scale long distances
is based on multiples of 10

Explanation:

Engineer's scales are often based on metric or decimal systems (multiples of 10), while architect's scales commonly use fractional or imperial units. The other options are incorrect: engineer's scales can handle long distances, aren't only for machinery drawings, and both can use fractional values in some contexts.

Answer:

is based on multiples of 10