Use should include testing devices that are selected, set, and adjusted for a specified test or measurement (voltage, amperage, resistance, and continuity). Scales must be read correctly on digital and analog testing devices.
Process/Skill Questions:
- What are the common types of testing devices used in the electricity trade? What do they measure?
- Why is it important to have the testing device set to the proper function before taking a reading?
- Why should the testing device leads be inspected before taking a reading?
- How is a testing device verified?
- What is “live-dead-live” testing?