POMP-RO-MTA

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POMP-RO-MTA
14 questions
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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 — CNMTA-Pomp — POMP-RO-MTA” contains 14 questions across 1 collection.

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Sample questions and answers

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Regulatorul de turatie al turbinei termice are rolul de:

One correct answer

a evita cresterea turatiei peste limita admisibila;
a evita trecerea turbinei prin turatia critica;
a asigura in permanenta o concordanta intre puterea produsa si sarcina ceruta de consumator ;✓ Correct answer
a regla turatia functie de nivelul vibratiilor in turbina.

Care este cresterea maxima de presiune de la care incepand supapele de siguranta se deschid automat:

One correct answer

10%;✓ Correct answer
5%;
25%;
50%.

Dupa modul de fixare al labirintilor acestia pot fi:

One correct answer

rigizi;
elastici;
doar elastici;
de ambele tipuri✓ Correct answer

Turbina cu abur este o masina termica rotativa in care:

One correct answer

energia aburului se transforma in energie cinetica si apoi in lucru mecanic;
energia potentiala a aburului se transforma in energie cinetica si apoi in lucru mecanic;✓ Correct answer
energia cinetica a aburului se transforma in energie potentiala si apoi in lucru mecanic;
energia cinetica se transforma in lucru mecanic

Cum se realizeaza etansarea dintre treptele unei turbine termice cu abur pentru evitarea scaparilor de abur pe la varful paletelor si pe sub diafragma:

One correct answer

prin sudare;
cu garnituri din materiale speciale rezistente la temperaturi inalte;
cu labirinti;✓ Correct answer
cu inele de carbon

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