RO-MA

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RO-MA
11 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 — MAEN-Manag — RO-MA” contains 11 questions across 1 collection.

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Sample questions and answers

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Principalele caracteristici la pornirea directa a motoarelor asincrone trifazate cu rotor in scurtcircuit sunt:

One correct answer

cuplu mare de pornire si curenti mici absorbiti de la retea
cuplu mic de pornire si curenti mari absorbiti de la retea
cuplu mic de pornire si curenti mici absorbiti de la retea
cuplu mare de pornire si curenti mari absorbiti de la retea✓ Correct answer

Care este Regim 1 in Fig. MA 03, care reprezinta caracteristica mecanica naturala a masinii asincrone

One correct answer

regim de generator✓ Correct answer
regim de motor
regim de frana
regim nominal

La pornirea stea-triunghi a motoarelor asincrone cu rotor in scurtcircuit, curentul absorbit in cazul conexiunii stea fata de curentul absorbit in cazul conexiunii in triunghi este :

One correct answer

egal
de 3 ori mai mare
de 3 ori mai mic✓ Correct answer
de aprox 1- 3 ori mai mic

La pornirea stea-triunghi a motoarelor asincrone cu rotor in scurtcircuit, cuplul la arbore in cazul conexiunii stea fata de cuplul la arbore in cazul conexiunii in triunghi este :

One correct answer

egal
de 3 ori mai mare
de 3 ori mai mic✓ Correct answer
de aprox 1- 3 ori mai mic

Ce este notat cu 9 in Fig. MA 01, care reprezinta sectiunea longitudinala a unui motor asincron cu rotorul in scurtcircuit cu trei trepte de turatie

One correct answer

cutie de borne✓ Correct answer
nervuri pentru marirea suprafetei de racire
carcasa
ventilator

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