Under which condition is a pneumatic drill commonly used?

A pneumatic drill is frequently utilized in situations where electricity is not available. Pneumatic drills operate using compressed air, making them ideal for outdoor or remote locations where electric power sources may be absent or impractical. They are particularly advantageous for construction sites, outdoor drilling, or any environment where traditional electrical tools cannot be effectively used.

While some of the other options reference relevant scenarios, they do not capture the primary condition that distinctly highlights the common use of pneumatic drills. For instance, noise reduction is not typically a strength of pneumatic tools; they can be quite loud due to the nature of compressed air. Underwater applications present challenges that pneumatic drills are not specifically designed for. Heavy-duty tasks can be performed by various types of drills, including electric or hydraulic models, not just pneumatic ones. Thus, the true hallmark of a pneumatic drill lies in its reliance on air power as a workaround for a lack of electricity.