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RO-M6

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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-M6” contains 11 questions across 1 collection.

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Sample questions and answers

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O pompa centrifuga este proiectata sa aiba un joc admisibil la montaj de 0,051 mm. Intre rotori si carcasa pompei pentru a dezvolta o viteza de curgere de 189,27 litri/minut la 2068 KPa. Dupa un an de functionare jocul a crescut la 0,203 mm. cu presiunea de refulare indicata la manometru de 2068 KPa. In conditiile indicate (dupa functionarea de un an) debitul pompei va fi:

One correct answer

  • mai mic de 189,27 litri/min. din cauza cresterii jocului;✓ Correct answer
  • 189,27 l./min. deoarece presiunea este neschimbata;
  • mai mare de 189,27 l./min. din cauza alunecarii reduse;
  • mai mare decat 189,27 l./min. din cauza randamentului mai mare.
Care din materialele indicate este folosit la etansarile mecanice montate la pompele centrifugale pentru apa?

One correct answer

  • cupru;
  • cupru si carbon;
  • grafit;✓ Correct answer
  • bronz.
In fig. PCS-012 componenta notata cu 27 este: I - folosita pentru eliminarea aerului din carcasa; II - alimenteaza (asigura) apa de etansare la presetupa;Question illustration

One correct answer

  • numai I;✓ Correct answer
  • numai II;
  • atat I cat si II;
  • nici I si nici II.
Care din componentele urmatoare sunt comune tuturor tipurilor de pompe:

One correct answer

  • carcasa in forma de spirala si rotorul;
  • propulsor si ejector;
  • motor de antrenare si fluid refulat;✓ Correct answer
  • turbina si pistonul;
Dispozitivul din fig. PCS-012 poate fi cel mai bine descris ca pompa centrifuga:Question illustration

One correct answer

  • multietajata cu o singura aspiratie si rotor inchis;
  • monoetajata cu o singura aspiratie si rotor inchis;✓ Correct answer
  • multietajata cu doua aspiratii si rotor inchis;
  • monoetajata cu o singura aspiratie si rotor deschis.

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