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RO-M1

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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 — 11_MIAMH — RO-M1” contains 90 questions across 1 collection.

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Valvula instalatiei frigorifice indicata in fig.ITA-004 este folosita pentru a regla:

One correct answer

Question illustration
  • temperatura compartimentelor
  • contrapresiunea in serpentine
  • ciclul de pornire/oprire al compresorului
  • temperatura de supraincalzire a vaporilor agentului frigorific la iesirea din serpentine✓ Correct answer
Care din dispozitivele indicate este folosit pentru a limita inghetarea serpentinelor evaporatorului la o instalatie frigorifica cu mai multe compartimente deservite de un compresor:

One correct answer

  • valvula de reglare a presiunii din vaporizator✓ Correct answer
  • valvula de laminare
  • tub capilar
  • valvula electromagnetica
Care este rolul vaporizatorului intr-o instalatie frigorifica ?

One correct answer

  • de vaporizare a agentului frigorific aspirat de compresor
  • transmiterea caldurii latente de vaporizare
  • absorbtia caldurii latente de vaporizare a agentului frigorific✓ Correct answer
  • expandare a agentului frigorific
Explicati relatia dintre caldura specifica si caldura latenta de vaporizare a unui agent frigorific…

One correct answer

  • nu exista o relatie matematica, una reprezentand caldura necesara cresterii temperaturii a unui kg, cealalta caldura necesara pentru schimbarea de faza✓ Correct answer
  • sunt invers proportionale
  • sunt direct proportionale
  • nu exista nici o diferenta, amandoua masurand o caldura unitara
Cand un compartiment frigorific, dintr-o instalatie frigorifica cu mai multe compartimente deservite de un compresor, atinge temperatura corecta reglarea temperaturii in acel compartiment este realizata de:

One correct answer

  • ventilul de laminare
  • supapa de reglare a contrapresiunii
  • valvula electromagnetica✓ Correct answer
  • presostatul de joasa presiune

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