Question 1
How big AC nominal tension requires Protective Earthing (PE)?
- 50 V.
- Over 50 V.
- Under 50 V.
Ex Basic, Assessment
CBT 40 questions
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Question 2
How many earthing wires may be connected to one screw?- 1.
- 1 to 2.
- 1 to 3.
Question 3
How often must you repeat the course on using electrical skills in the explosive areas?- Every 3 years.
- Every 5 years.
- Every 7 years.
Question 4
In which Ex-zone is it allowed to use Exe motors?- 0.
- 0 and 1.
- 1 and 2.
Question 5
In which Ex-zone is it allowed to use the Exn motors?- 0.
- 1.
- 2.
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About this CBT test
Ex Basic, Assessment is a CBT test with 40 questions and verified answers. Common topics include: intrinsically safe, electrical equipment, zone, group, exe, gas, areas, minimum.
You can practise the free questions online — one at a time, with the correct answer — or unlock the whole test and download it to study offline, without internet.