Question

Which of the following will provide no ground reference?

(a) Metal mat

(b) Conducting mat

(c) Insulating mat

(d) Static mat

I got this question in my homework.

I'm obligated to ask this question of Aircraft Electronics topic in section Aircraft Electronics of Aircraft Maintenance

Answer 1

Correct choice is (c) Insulating mat

For explanation I would say: Out of the given options, an insulating mat will offer no ground reference. In other terms, the mat will not have grounding and may not be safe for repairing and overhaul of ESD components.