Question

what are some chalk lines also designed to serve as?
level
measuring tape
plumb bob

Explanation:

A chalk line is a tool used in construction. A level is a separate tool for ensuring horizontal or vertical alignment. A plumb bob is for determining vertical lines. A measuring tape is used for measuring lengths. Chalk lines can be used to mark straight lines over long distances, similar to how a measuring tape is used to measure lengths (by marking off lengths along a line).

Answer:

measuring tape