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!

OEM3-RO-DIODE

Search this section

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

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 — OEM3-RO-DIODE” contains 10 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.

Pentru o dioda semiconductoare redresoare parametrii electrici de interes sunt:

One correct answer

  • IFM (curentul direct maxim admisibil) si VZ (tensiunea nominala de stabilizare);
  • VBR (tensiunea de strapungere) si IFM (curentul direct maxim admisibil);✓ Correct answer
  • IZM (curentul maxim admisibil prin dioda la polarizare inversa) si VZ (tensiunea nominala de stabilizare);
  • Vz (tensiunea nominala de stabilizare) si IFM (curentul direct maxim admisibil).
Consideram o dioda cu germaniu si o dioda cu siliciu avand aceleasi limite de curent. Comparand cele doua diode in ceea ce priveste caderea de tensiune corespunzatoare unui anumit curent in regim de conductie directa si curentul rezidual in regim de conductie inversa, se poate face urmatoarea afirmatie:

One correct answer

  • caderea de tensiune in conductie directa si curentul invers sunt mai mici la dioda cu siliciu;
  • caderea de tensiune in conductie directa este mai mica iar curentul invers este mai mare la dioda cu siliciu;
  • caderea de tensiune in conductie directa si curentul invers sunt mai mari la dioda cu siliciu;
  • caderea de tensiune in conductie directa este mai mare iar curentul invers este mai mic la dioda cu siliciu.✓ Correct answer
La polarizare inversa campul electric intern este:

One correct answer

  • crescut;✓ Correct answer
  • coborat;
  • neafectat;
  • anulat.
La polarizare directa bariera interna de potential este:

One correct answer

  • crescuta;
  • coborata;✓ Correct answer
  • neafectata;
  • anulata.
La polarizare directa campul electric intern este:

One correct answer

  • crescut;
  • coborat;✓ Correct answer
  • neafectat;
  • anulat.

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.