Shouldn’t be. As long as you are on the same hardness scale it should be fine. The standard number 2 pencil just means its a medium-hardness graphite or HB on the grading scale. An argument can be made for the finer tip of the mechanical pencil can damage the scantron paper, but one should be able to fill in a circle without pressing so hard it damages the paper.
Pencils. The ones where you need a pencil sharpener to sharpen them every so often. Mechanical pencils just aren’t the same.
Aren’t mechanical pencils incompatible with scantrons?
Shouldn’t be. As long as you are on the same hardness scale it should be fine. The standard number 2 pencil just means its a medium-hardness graphite or HB on the grading scale. An argument can be made for the finer tip of the mechanical pencil can damage the scantron paper, but one should be able to fill in a circle without pressing so hard it damages the paper.