Question

5 multiple choice 1 point never start a power saw if other machinery is running in the shop when someone else is within 15 feet of the saw sooner than 15 minutes after another student used it with the blade touching the material

Explanation:

Starting a power saw with the blade touching the material is extremely dangerous as it can cause sudden and uncontrolled cutting, leading to accidents. Other options like other machinery running (if proper safety protocols are followed), someone being within 15 feet (if they are behind safety barriers), or time since last use (unless there is a specific cooling - down period for the saw itself, which is not a common general rule) are not as universally and inherently dangerous as having the blade in contact with the material at start - up.

Answer:

with the blade touching the material