← All ECS Flashcard Decks

Electrical Tools and Equipment Safety Flashcards

6 cards from real ECS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Electrical Tools and Equipment Safety flashcards as text
  1. Which instrument must be used to confirm a circuit is de-energized as part of the safe isolation procedure?

    Answer: An approved voltage indicator or test meter proved on a known live source before and after testing

    An approved voltage indicator must be proved on a known live source before and after testing the isolated circuit to confirm the instrument is working correctly.

  2. What color coding typically identifies 110V reduced-voltage power tools on a construction site?

    Answer: Yellow

    Yellow is the internationally recognized color for 110V center-tapped-to-earth (CTE) equipment used on construction sites to reduce shock risk.

  3. What is the main purpose of a lockout/tagout (LOTO) procedure?

    Answer: To isolate energy sources and prevent equipment from being accidentally re-energized during maintenance

    LOTO procedures physically isolate and lock out energy sources so that machinery cannot be started while workers are performing maintenance or repairs.

  4. How frequently should portable electrical tools undergo a formal visual inspection on an active construction site?

    Answer: Before every use — or at minimum daily when in continuous use

    Construction sites expose tools to damage daily, so a pre-use visual check before every use is the safest standard practice.

  5. What safety feature on a power tool prevents it from starting accidentally if it is dropped or the trigger is bumped?

    Answer: Trigger lock-off or safety guard on the trigger

    A trigger lock-off button requires deliberate two-step action to start the tool, preventing accidental activation if the trigger is inadvertently pressed.

  6. When using an angle grinder on site, which PPE item is most critical in addition to standard safety equipment?

    Answer: A full face shield to protect against flying sparks and disc fragments

    Angle grinders can eject disc fragments at very high velocity, making a full face shield essential to protect the eyes and face beyond what safety glasses alone provide.