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CD8539. Exi verification and documentation

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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 — CD8539. Exi verification and documentation” contains 32 questions across 1 collection.

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Sample questions and answers

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What determines the T-class?

One correct answer

  • The field device documentation / label✓ Correct answer
  • Only the power from the associated apparatus
  • Only the ambient temperature
How will the zenerbarrier affect the circuit?

One correct answer

  • It’s connected directly in the circuit and adds resistance to the loop✓ Correct answer
  • It provides a segregation for the loop
  • All zener barriers connects the return signal to earth
Is it a requirement to state the achieved T-class for components in an I.S. circuit?

One correct answer

  • Yes✓ Correct answer
  • No
  • Only for Certified Apparatus
May a field device have several T-classes?

One correct answer

  • Yes, refer to documentation✓ Correct answer
  • No, not for certified apparatus
  • Yes, but only for simple apparatus
Is Ex nL equipment suitable for a ‘ib’ circuit?

One correct answer

  • No, only for an ‘ic’ circuit✓ Correct answer
  • Yes
  • No, Ex nL may not be used in an intrinsically safe circuit

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Questions and answer options retain the language of the original bank. You can change the interface language separately.

Can I use my result as an official document?

No. This is independent practice. A result does not replace an examination, certificate or knowledge check by an authorised organisation.