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CD8533. Electrical installation in Ex-area

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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 — CD8533. Electrical installation in Ex-area” contains 32 questions across 1 collection.

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Sample questions and answers

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Is it a problem with bad terminations in Ex 'e'?

One correct answer

  • Yes, arcs and sparks is not accepted in a Ex 'e'✓ Correct answer
  • No, the enclosure is able to withstand an internal explosion
  • No, the enclosure is pressurized
Can we modify the purge time on a Ex 'p' enclosure?

One correct answer

  • No, unless the documentation from the manufacturer states otherwise✓ Correct answer
  • Yes, adjustable depending to customer requirements
  • Purge time is not applicable for Ex p enclosures. Only T-class
After 2008, are you allowed to install uncertified cable glands in Ex e equipment in Zone2?

One correct answer

  • No, all cable glands shall be certified✓ Correct answer
  • Yes, as long as it is made of brass
What is the purpose of the flame path on flameproof enclosures?

One correct answer

  • Cool down the escaping gasses from the internal explosion✓ Correct answer
  • Provide a good IP rating
  • It gives the enclosure mechanical protection
What does the 'X' in the end of the certificate reference mean? E.g. ITS 01 ATEX 0402X

One correct answer

  • The equipment has got special conditions for safe use✓ Correct answer
  • The component is only equipment certified
  • The equipment can be installed without any precautions

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