What DMM setting is commonly used to measure voltage in most circuits?

When measuring voltage in most circuits, the common Digital Multimeter (DMM) setting is DC Volts. This is particularly true for automotive and electronic circuits, where direct current (DC) systems are prevalent. The DC Volts setting allows for accurate measurement of voltage levels in these types of circuits, which are typically powered by batteries or DC power sources.

Using the DC Volts setting, the multimeter can provide a reading that reflects the voltage present in the circuit, which is essential for diagnosing electrical issues, assessing the performance of components, and ensuring systems operate within their specifications.

In alternating current (AC) systems, the AC Volts setting would be used instead, but since many automotive electrical systems operate on DC, the DC Volts setting becomes the most relevant choice. The Ohms setting is used for measuring resistance, and DC Amps is for measuring current flow, which does not pertain directly to voltage measurement. Thus, the DC Volts setting is the correct and most commonly used setting for measuring voltage in typical circuits.