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!

RO-DIN

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 — 09_MAI — RO-DIN” contains 9 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.

Masa grupului piston aferent mecanismului motor in doi timpi reprezinta:

One correct answer

  • Masele cumulate ale pistonului propriu-zis, ale segmentilor si boltului;
  • Masele cumulate ale pistonului propriu-zis, ale segmentilor, boltului si masa bielei raportata la picior;
  • Masele cumulate ale pistonului propriu-zis, ale segmentilor, boltului si masa bielei raportata la cap;
  • Masele cumulate ale pistonului propriu-zis, ale segmentilor, tijei pistonului si capul de cruce.✓ Correct answer
Forta de inertie a maselor in miscare alternativa este:

One correct answer

  • Proportionala cu viteza pistonului;
  • Proprtionala cu deplasarea pistonului;
  • Invers proportionala cu acceleratia pistonului;
  • Proportionala cu acceleratia pistonului cu semn schimbat.✓ Correct answer
Atunci cand manivela s-a rotit cu 90 grd RAC, pistonul a efectuat:

One correct answer

  • O cursa intreaga;
  • 1/2 din cursa;
  • Dubul cursei pistonului;
  • Mai mult de 1/2 din cursa pistonului.✓ Correct answer
Valoarea maxima a deplasarii pistonului mecanismului motor cu biela principala si biele secundare este:

One correct answer

  • 1/2 din cursa pistonului;
  • Dublul cursei pistonului;
  • ¼ din cursa pistonului;
  • Egala cu cursa pistonului.✓ Correct answer
Tinand cont ca forta care incarca fusul maneton este rezultanta vectoriala dintre forta din lungul bielei si forta centrifuga de inertie bielei raportate la maneton, atunci cand aceasta rezultanta este nula, inseamna ca:

One correct answer

  • Prima forta este nula, iar cea de-a doua este maxima;
  • Prima forta este nula, iar cea de-a doua este minima;
  • Prima forta este maxima, iar cea de-a doua este nula;
  • Prima forta este nula.✓ Correct answer

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.