What is another name for a volt/ohm meter?

Answer: B — Multi-meter

A volt/ohm meter is commonly referred to as a multi-meter. This device is essential for measuring electrical parameters such as voltage (in volts), resistance (in ohms), and current (in amperes). Its versatility allows technicians to perform multiple tests with one instrument, making it a crucial tool for anyone working in electrical or electronic fields. The multi-meter can also measure various other electrical characteristics, depending on its features, including capacitance, frequency, and sometimes even temperature. This ability to handle multiple functions efficiently makes it an indispensable device when servicing and troubleshooting electrical circuits, including traffic signal systems. In contrast, other options listed serve different specific purposes. A clamp meter primarily measures current and is not designed to measure resistance directly. A signal tester is used to determine the presence or absence of electrical signals in a wire or circuit but does not measure voltage or resistance. Similarly, a voltage detector is a simpler tool that indicates the presence of voltage without providing specific measurements of voltage or resistance. Each of these tools has its specific use cases but does not fulfill the comprehensive measuring capabilities of a multi-meter.