Question

00104 - introduction to power tools
when is a pneumatic drill commonly used?
in areas where noise is a problem
when electricity is unavailable
to drill in tight, small areas
to perform precision work

Explanation:

Pneumatic drills are powered by compressed air, so they are useful when there is no access to electricity. They are generally noisy, not ideal for precision work in tight - small areas compared to some specialized tools.

Answer:

when electricity is unavailable