"I have worked on a project in a sump where I was definitely in an enclosed area with limited space. It is often difficult to maneuver and get my work done when I'm in the situation, but I found that the more I did it, the more comfortable I was in that particular situation.
OR
I have never had that specific experience, but I have worked under cars while trying to repair them, and I definitely was in an enclosed type of area with limited workspace. It helps to be systematic in my approach to working in that type of situation and have all materials prepared and a game plan in place for getting the work done."