CWEA Maintenance Technologist Practice Test 2026 – Complete Exam Prep

Using a multimeter is essential for electrical troubleshooting and diagnostics, primarily when checking voltage or resistance within a circuit. A multimeter is a versatile instrument that allows technicians to measure various electrical properties, such as voltage (in volts), current (in amperes), and resistance (in ohms). These measurements are critical for identifying issues in electrical circuits, ensuring that systems operate safely and effectively.

When a technician uses a multimeter to check voltage, they can verify whether power is being supplied correctly to components. Similarly, measuring resistance can help determine if there are any faults, such as short circuits or broken connections. This capability makes the multimeter an invaluable tool in electrical maintenance and repair.

Options related to measuring pressure, calibrating pumps, or inspecting mechanical components involve different tools and techniques tailored for those specific purposes. For instance, pressure would typically be measured with a manometer or pressure gauge, while calibration of pumps might require flow meters or specialized calibration equipment, and mechanical inspections would utilize tools like calipers or torque wrenches. Thus, the use of a multimeter is uniquely suited to the context of electrical measurement, confirming that checking voltage or resistance is the most appropriate scenario for its application.