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Safe operation and maintenance of grinding wheels

CBT 52 questions

First 5 of 52 questions — with answers

The correct answer is marked. Unlock the rest to study the whole test, online or offline.

  1. Question 1

    A new cutting disc is taken from the stores. When subjected to a ring test it fails. What is the most likely reason for this?
    • It is reinforced.
    • It was not stored flat.
    • It is still dirty.
    • The wrong type of hammer was used.

  2. Question 2

    A new grinding wheel is taken from the stores. It has a red line across the middle. What does it mean?
    • Someone has scrapped it.
    • It has a maximum operating speed of 80 m/s.
    • It is part of the maker's logo.
    • It is a cutting wheel.

  3. Question 3

    A new grinding wheel is taken from the stores. When subjected to a ring test it fails. Which of these is the most likely reason for this?
    • It is too small.
    • It has a red stripe.
    • It's edge is uneven.
    • It was held using wire.

  4. Question 4

    A new wheel machines are often used for grinding operations. Which of these may cause excessive heat to be created when grinding?
    • Strong sunlight.
    • Pushing whell and work together too hard.
    • Twisting the wheel.
    • Too small a wheel.

  5. Question 5

    Abrasive wheel machines found onboard ship are sometimes fitted with a wire brush wheel. What is the problem with bristles coming off a brush wheel?
    • The bristles are sharp and can puncture skin.
    • The bristles are hot and can burn through boilersuits.
    • The job will take longer.
    • They make a lot of noise.

Preview — 5 of 52 questions

You are seeing the first 5 questions with answers. Unlock the remaining 47 to study the whole test — online or offline.

About this CBT test

Safe operation and maintenance of grinding wheels is a CBT test with 52 questions and verified answers. Common topics include: abrasive wheel, hardness porosity, mild steel, work piece, bench machine, bond grain, burrs flame, drill bits.

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