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RO-TRAF

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About this collection

The ANR bank contains many sets with original names and codes, including navigation, safety and equipment topics. Select a module by name or use question search.

“ANR — MAEN-Manag — RO-TRAF” contains 17 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.

Ce masura se ia pentru eliminarea supratensiunilor ce pot apare cand transformatorul de curent are secundarul in gol

One correct answer

  • Se scurtcircuiteaza secundarul transformatorului✓ Correct answer
  • Se scurtcircuiteaza primarul
  • Se lasa transformatorul in gol
  • Se creste izolatia secundarului
Ce se intelege prin functionarea in gol a transformatorului

One correct answer

  • Regimul permanent in care infasurarea primara este la tensiunea nominala si circuitul secundar intrerupt✓ Correct answer
  • Regimul permanent in care infasurarea primara este la tensiunea nominala si circuit secundar neintrerupt
  • Regimul permanent in care infasurarea primara este la tensiunea nominala si circuitul primar intrerupt
  • Regimul nepermanent in care infasurarea primara este la tensiunea nominala si circuitul primar intrerupt
Care din urmatorii curenti aplicati in primarul transformatorului produc campul magnetic

One correct answer

  • Curentul de excitatie
  • Curentul primar✓ Correct answer
  • Curentul de magnetizare
  • Curentul de scurtcircuit
Ce tensiune de mers in gol trebuie sa asigure un trensformator de sudura

One correct answer

  • 50V÷60V
  • 20V÷30V
  • 80V÷100V
  • 60V÷85V✓ Correct answer
Cum se procedeaza la aparitia unui defect in tipul functionarii transformatorului

One correct answer

  • Se scoate de sub tensiune
  • Se scoate de sub tensiune si se verifica cauzele producerii defectului✓ Correct answer
  • Se masoara tensiunea
  • Se deconecteaza consumatorii

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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.