IG MARITIMEMade by Seafarers for Seafarers

All international training tests on IG MARITIME are free for every seafarer. Register once to save your progress and prepare for your next voyage without limits!

CD8537. Exi protection concepts (Exi a,b,c,nL)

Search this section

Choose a question set and start learning or take an exam.

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 — CD8537. Exi protection concepts (Exi a,b,c,nL)” contains 28 questions across 1 collection.

Learning

Learning mode has no timer. After answering, you see feedback and the correct options. You can return to a question and repeat a topic.

Exam

A practice exam lasts up to 60 minutes and includes up to 50 questions from the selected collection. Correct answers and results appear after completion.

Sample questions and answers

These examples come from the published collection. Choose Learning to study questions in sequence, or Exam to check your knowledge.

If a color is used to identify an intrinsically safe circuit, what colour should this be?

One correct answer

  • Light blue✓ Correct answer
  • Black
  • Light red
  • Green
What is described by Uo, Io and Po?

One correct answer

  • The maximum output parameters from an associated apparatus✓ Correct answer
  • The maximum input parameters for a certified field device
  • The nominal voltage, current and power from an associated apparatus
  • The nominal voltage for a certified field device
Which parameter shall be greatest, the barriers Uo or the field devices Ui?

One correct answer

  • Ui✓ Correct answer
  • Uo
  • Not relevant
What zone can equipment marked with “II (1) G [Ex ia] IIC (Ga)” be installed in?

One correct answer

  • A non-hazardous area✓ Correct answer
  • Zone 0, 1 and 2
  • Zone 1 and 2
  • Zone 2
Where can equipment with following marking be installed: II3(2)G Ex ec mc [ia Gb] IIC T4 Gc?

One correct answer

  • Zone 2 only✓ Correct answer
  • Zone 1 and zone 2
  • Zone 0, 1 and zone 2

Before you start

Do I need to register to start?

Guest access lasts 23 minutes. Free registration lets you continue without limits, save progress and review mistakes in your account.

What language are the questions in?

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.