Practice Test Geeks(STSC) Safety Trained Supervisor Construction Practice Test
← All STSC Flashcard Decks

Tool and Equipment Safety Flashcards

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

Read the first 7 Tool and Equipment Safety flashcards as text

  1. A supervisor notices a worker using an electric drill with a two-prong plug instead of a three-prong grounded plug. What should the supervisor do?

    Answer: Stop work immediately and replace the tool with a properly grounded one

    Ungrounded power tools pose an electrocution hazard and must be removed from service and replaced with properly grounded or double-insulated tools.

  2. What does the color-coding system for abrasive grinding wheels primarily indicate?

    Answer: The wheel's bond type, grit, and maximum operating speed

    Grinding wheel markings identify the abrasive type, grit size, grade, structure, and bond type, along with the maximum RPM the wheel can safely handle.

  3. Which condition makes it UNSAFE to use a chain hoist or come-along for lifting?

    Answer: The chain links are stretched or deformed

    Stretched or deformed chain links indicate overloading or damage that compromises the lifting capacity and can lead to sudden failure under load.

  4. Under OSHA 29 CFR 1926, which hand tool is NOT required to be kept free of mushroomed heads?

    Answer: Pliers

    Pliers do not develop mushroomed heads; however, struck tools like chisels, drift pins, and star drills must have mushroomed heads dressed or replaced to prevent fragment ejection.

  5. What is the minimum safe distance a worker should maintain from a powder-actuated tool discharge when it is being operated by another worker?

    Answer: 10 feet

    OSHA and manufacturer guidelines specify that workers must stay at least 10 feet away from the muzzle direction of a powder-actuated tool being fired.

  6. When using an electric circular saw, what PPE is MOST critical to prevent the most likely serious injury?

    Answer: Safety glasses or goggles

    Circular saws generate flying debris, chips, and sawdust at high velocity, making eye protection the most critical PPE to prevent serious eye injury.

  7. According to OSHA, how often must portable electric tools be inspected by a competent person on a construction site?

    Answer: Before each use

    OSHA 29 CFR 1926.303 requires that portable electric tools be inspected before each use to identify defects that could cause injury.