NCCER Millwright Practice Exam 2026 - Free Millwright Practice Questions and Study Guide

Question: 1 / 400

A stroboscope is triggered by what type of device?

Photocell

Transducer

A stroboscope is typically triggered by a transducer, which is a device that converts one form of energy into another. In this context, a transducer can convert mechanical movement or changes in light levels into electrical signals that are used to trigger the stroboscope's flash. This is essential for applications like measuring speed or observing fast-moving parts, as it allows the device to synchronize with the motion being analyzed.

In specific applications, a transducer such as a phototransistor or other light-sensitive device may be used, but the broader category of transducer encompasses all devices that convert physical phenomena into an electrical signal for triggering purposes. This allows for precise control and the ability to effectively visualize motion under various lighting conditions.

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Microcontroller

Relay

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