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RO-AC

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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 — ME.IEB-OEMP — RO-AC” contains 33 questions across 1 collection.

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.

In fig.AC 12 este prezentata schema electrica de actionare a unei pompe de balast santina. Care este elementul din schema notat cu K 71:

One correct answer

Question illustration
  • contactor de linie cuplat atat la conexiunea stea cat si la conexiunea triungi, care are contacte auxiliare cu temporizare✓ Correct answer
  • contactor care se inchide la conexiunea triunghi
  • contactor care se inchide la conexiunea stea
  • releu de timp care are un contact netemporizat pentru pornire si un contact temporizat pentru deconectarea alimentarii electrovalvulei de amorsare
In fig.AC 12 este prezentata schema electrica de actionare a unei pompe de balast santina. Care este elementul din schema notat cu P 71:

One correct answer

Question illustration
  • transformator pentru alimentarea lampii de semnalizare, releului de timp si a electrovalvulei de amorsare
  • transformator de curent pentru alimentarea ampermetrului
  • ampermetru pentru masurarea curentului pe faza T a motorului✓ Correct answer
  • electrovalvula pentru amorsare
In fig.AC 12 este prezentata schema electrica de actionare a unei pompe de balast santina. Care este elementul din schema notat cu T 81:

One correct answer

Question illustration
  • transformator pentru alimentarea lampii de semnalizare, releului de timp si a electrovalvulei de amorsare
  • transformator de curent pentru alimentarea ampermetrului✓ Correct answer
  • ampermetru pentru masurarea curentului pe faza T a motorului
  • electrovalvula pentru amorsare
In fig.AC 10 este prezentata schema electrica de actionare a mecanismului de sarcina de la o macara navala.Ce reprezinta elementul care este notat cu C2:

One correct answer

Question illustration
  • controler
  • contactor de sens ridicare
  • contactor de sens coborare✓ Correct answer
  • contactor de alimentare a franei
In fig AC 20 este prezentata schema electrica pentru un pornitor cu comanda automata la pornire.Ce reprezinta elementul notat cu 51b:

One correct answer

Question illustration
  • contactor de linie
  • releu termic
  • contactul unui presostat care asigura pornirea si oprirea functie de presiune
  • contactul releului termic care intrerupe alimentarea bobinei contactului 88 in caz de suprasarcina✓ Correct answer

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