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CD0245. Safe operation and maintenance of grinding wheels

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About this collection

The Seagull CBT bank is organised into modules covering safety, shipboard operations, maintenance and other topics. Original module names and codes are retained to help you find the topic you need.

“Seagull CBT — CD0245. Safe operation and maintenance of grinding wheels” contains 44 questions across 1 collection.

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Sample questions and answers

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On a grinding wheel what does ‘MOS’ stand for?

One correct answer

  • Maximum Operating Speed✓ Correct answer
  • Multi Operation Science
  • Maximum Operating Size
  • More Operations Style
Grinding wheels are sometimes classified by the bonding method used in the manufacture of the wheels. Which class of grinding wheel is most easy to break?

One correct answer

  • Vitrified (V)✓ Correct answer
  • Resinoid (B)
  • Rubber (R)
  • Shellac (E)
Complete the following statement with the option that best describes the reason why you should not press too hard with the work piece against a grinding wheel. When using a grinding wheel on a bench machine you should not press too hard because...

One correct answer

  • ...the extra heat may cause the wheel to break✓ Correct answer
  • ...you may hurt your back
  • ...you are not paid enough to rush things
  • ...you may get sore hands
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?

One correct answer

  • The bristles are sharp and can puncture skin✓ Correct answer
  • The bristles are hot and can burn through boilersuits
  • The job will take longer
  • They make a lot of noise
A new grinding wheel is taken from the stores. It has a red line across the middle. What does this mean?

One correct answer

  • It has a maximum operating speed of 80 m/s✓ Correct answer
  • Someone has scrapped it
  • It is part of the maker’s logo
  • It is a cutting wheel

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