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Electrotehnica-OEM3

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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 — Electrotehnica-OEM3” contains 91 questions across 7 collections.

Learning

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Exam

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Sample questions and answers

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

Pentru un sistem stabil cu intrare treapta, raspunsul este:

One correct answer

  • periodic amortizat;✓ Correct answer
  • periodic amplificat;
  • periodic intretinut;
  • periodic nemarginit;
Cum trebuie sa fie polarizate cele doua jonctiuni ale unui tranzistor care functioneaza in regiunea activa normala?

One correct answer

  • jonctiunea emitor-baza polarizata direct, jonctiunea colector-baza polarizata invers✓ Correct answer
  • jonctiunea emitor-baza polarizata invers, jonctiunea colector-baza polarizata direct
  • ambele jonctiuni polarizate invers
  • ambele jonctiuni polarizate direct
Ce trebuie sa se faca la o caldarina cu arzator pentru preintampinarea unei explozii in arzator?

One correct answer

  • recircularea apei;
  • preventilarea si postventilarea camerei de ardere;✓ Correct answer
  • scaderea presiunii aburului;
  • postventilarea camerei de ardere;
Care este ordinea de amplasare a limitatoarelor pentru oprirea penei carmei cand aceasta ajunge in pozitia de bandare maxima in unul din borduri?

One correct answer

  • limitatori electrici, limitatori mecanici, limitatori de corp;✓ Correct answer
  • limitatori electrici, limitatori hidroelectrici, limitatori de corp;
  • limitatori pe pana carmei, limitatori hidropneumatici, limitatori mecanici;
  • limitatori pe pompa, limitatori mecanici, limitatori pe pana carmei.
Legea conservarii sarcinii electrice se exprima:

One correct answer

  • intensitatea curentului electric de conductie care iese dintr-o suprafata S este egala cu viteza de scadere a sarcinii electrice adevarate continute in interiorul suprafetei;✓ Correct answer
  • intensitatea curentului electric de conductie care iese dintr-o suprafata S este egala cu sarcina din suprafata respectiva;
  • intensitatea curentului electric de conductie care iese dintr-o suprafata S este egala cu raportul dintre tensiune si rezistenta;
  • intensitatea curentului electric de conductie care iese dintr-o suprafata S este dependenta de natura mediului electric.

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