Practice Test GeeksNCCER Core - National Center for Construction Education and Research Core Certification Practice Test
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Power Tool Safety and Operation Flashcards

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

Read the first 6 Power Tool Safety and Operation flashcards as text

  1. At what angle should a grinding disc contact the work surface for grinding?

    Answer: 15-30 degrees

    The disc should contact at approximately 15-30 degrees for optimal grinding.

  2. What is the most common cause of power tool electrical injuries on construction sites?

    Answer: Damaged cords, missing ground pins, and contact with live circuits

    Damaged cords, missing ground pins, and contact with live circuits are the leading causes.

  3. What PPE is always required when operating a hammer drill?

    Answer: Safety glasses, hearing protection, and dust mask

    Hammer drills require safety glasses, hearing protection (95-115 dB), and dust mask for silica dust.

  4. What should you NEVER wear when operating rotating power tools?

    Answer: Loose clothing, jewelry, or untied long hair

    Loose items can get caught in rotating parts, pulling the worker into the machine.

  5. What is the function of a riving knife on a table saw?

    Answer: To prevent material from pinching the blade and causing kickback

    A riving knife prevents the cut material from closing on the blade, preventing kickback.

  6. At what RPM should you operate a grinding wheel compared to its maximum RPM?

    Answer: At or below the maximum - never exceed it

    Never exceed the marked maximum RPM. Exceeding it can cause the wheel to disintegrate.