During a fire pump test, which instrument is used to verify electrical parameters?

During a fire pump test, which instrument is used to verify electrical parameters?

• A. Calibrator
• B. Multimeter
• C. Refractometer
• D. Tachometer

Answer: (B)

During a fire pump test, you need to confirm the electrical parameters that affect starting, running, and protection of the motor—things like voltage, current, and circuit continuity. A multimeter is the right tool because it can measure these electrical quantities in one portable instrument, letting you verify the supply to the motor, check wiring continuity, and spot obvious resistive or connection issues. Other tools listed serve different purposes: a calibrator is for setting and verifying measurement devices, a refractometer is for liquid concentration, and a tachometer measures rotational speed rather than electrical properties.

During a fire pump test, you need to confirm the electrical parameters that affect starting, running, and protection of the motor—things like voltage, current, and circuit continuity. A multimeter is the right tool because it can measure these electrical quantities in one portable instrument, letting you verify the supply to the motor, check wiring continuity, and spot obvious resistive or connection issues. Other tools listed serve different purposes: a calibrator is for setting and verifying measurement devices, a refractometer is for liquid concentration, and a tachometer measures rotational speed rather than electrical properties.