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RO-ERCN

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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 — RO-ERCN” contains 17 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.

Tamponarea tuburilor se poate face cu…

One correct answer

  • dopuri metalice cilindrice cu guler;
  • dopuri metalice sferice;
  • dopuri din plumb;
  • dopuri metalice de forma tronconica cu o conicitate de 1/10 din diametrul interior al tevii.✓ Correct answer
Ce trebuie sa permita dispozitivele de inchidere ale indicatoarelor de nivel…

One correct answer

  • controlul calitatii apei;
  • purjarea separata a spatiilor de apa si a spatiilor de abur;✓ Correct answer
  • controlul calitatii aburului;
  • montarea unor sticle de nivel etalon pentru verificarea exacta a nivelului.
Arderea combustibilului in focar prezenta aspectul: culoare rosie, varfurile flacarii sunt negre, nu cuprinde intregul focar, fumul la cos este negru, daca…

One correct answer

  • arderea este fara aer suficient;✓ Correct answer
  • coeficientul de exces de aer este 1,8…2;
  • sarcinea caldarii se reduce, iar cantitatea de combustibil scade;
  • raportul aer-combustibil este corect.
O caldare de abur cu circulatie fortata are prevazute….

One correct answer

  • dispozitive de avertizare separate care semnalizeaza alimentarea insuficienta a caldarii cu apa;✓ Correct answer
  • doua indicatoare de nivel dependente de presiunea de vaporizare;
  • un indicator de nivel minim;
  • un indicator de nivel maxim.
Ce reprezinta duritatea temporara….

One correct answer

  • continutul total de bicarbonati de calciu si magneziu;✓ Correct answer
  • continutul total al sarurilor de calciu si magneziu cu exceptia bicarbonatilor;
  • continutul total de ioni de calciu si magneziu;
  • continutul total de saruri de calciu si magneziu;

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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.