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RO-MAI S1

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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 — 14_MAICN — RO-MAI S1” contains 47 questions across 1 collection.

Learning

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Sample questions and answers

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Care este rolul ventilelor (valvulelor) de abur ale caldarii?

One correct answer

  • conecteaza sau deconecteaza caldarea de tubulatura care realizeaza alimentarea cu apa
  • sunt armaturi montate orizontal sau vertical iar manevrarea lor se poate face din interiorul compartimentului sau de la distanta✓ Correct answer
  • preintampina cresterea presiunii in caldare peste presiunea de regim.
Care este sensul de circulatie naturala a apei, in caldarea acvatubulara, in interiorul tuburilor, dispuse spre focar?

One correct answer

  • din colectorul inferior spre cel superior✓ Correct answer
  • din colectorul superior spre cel inferior, la snopul ecranat
  • apa va cobora spre colectorul inferior deoarece tuburile sunt expuse gazelor de ardere aflate la o temperatura mai scazuta
Care este principalul rol al tuburilor caldarii acvatubulare?

One correct answer

  • consolidare a caldarii
  • reprezinta suprafata principala de transmitere a caldurii apei din interiorul lor✓ Correct answer
  • asigura functionarea normala a caldarii, impiedicand ebolutiunile
Ce este focarul caldarii acvatubulare?

One correct answer

  • este spatiul destinat arderii combustibilului format din primele randuri de tuburi, peretii verticali ai caldarii si vatra✓ Correct answer
  • este spatiul destinat arderii combustibilului, delimitat de primele randuri de tuburi, colector inferior si supraincalzitor
  • este vatra de caramida refractara, prevazuta cu spatii necesare pentru dilatare
Ce este o caldare navala?

One correct answer

  • este un agregat termic care foloseste energia calorica acumulata de gazele de evacuare de la motorul principal
  • este un agregat termic care transforma energia calorica, degajata prin arderea unui combustibil, in energie cinetica
  • este un agregat termic, in care se obtine abur la anumiti parametri de stare, datorita energiei calorice degajate de arderea unui combustibil✓ Correct answer

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