G2 Gas Fitter Practice Exam

Portable electric drills typically operate at common voltages such as 12 VDC, which is a standard for many consumer power tools. This voltage strikes a balance between power and portability, allowing drills to achieve adequate performance for a variety of tasks while ensuring that the tools remain lightweight and easy to handle. The 12 VDC is widely adopted across many drill models because it supports the required torque and RPM levels necessary for drilling without the need for cumbersome batteries or heavy-duty power supplies. The other voltage options like 6 VDC are generally used in smaller or less powerful devices, which might not provide sufficient power for drilling applications. Higher voltages such as 24 VDC and 48 VDC are typically found in more industrial or specialized applications, providing increased power output, but they may lead to heavier equipment that is less practical for portable use. Thus, 12 VDC emerges as the most appropriate and commonly used voltage for portable electric drills, balancing power and usability effectively.