Electrotehnica
Quiz
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Other
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Professional Development
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Hard

Elena-Ema Popescu
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce este electrotehnica?
Este o disciplina a stiintelor tehnice care studiaza aplicatiile fenomenelor electromagnetice, precum si o ramura a industriei care aplica aceste fenomene.
Reprezinta o disciplina din domeniul fizicii aplicate, care se ocupa cu studiul dispozitivelor electronice si al circuitelor care includ aceste elemente (circuite electronice), folosite in procese de comanda, reglare, masurare, ingineria, tehnologia si aplicatiile care se ocupa cu emisia, fluxul si controlul electronilor in vid si materie.
Este o ramura a fizicii care studiaza modul in care se schimba pozitia corpurilor.
2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Forma de existenta a materiei in care se manifesta forte si cupluri care se exercita asupra corpurilor magnetizate sau parcurse de curenti electrici, se numeste:
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
In ce se masoara campul magnetic?
Newton
Joule
Tesla
Volti
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Care este formula pentru Legea lui Ohm?
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
A doua lege a lui Khirchhoff, pentru o retea electrica cu N noduri si L laturi, ne furnizeaza, pentru analiza unui circuit electric:
L+N-1 ecuatii distincte
L-N+1 ecuatii distincte
N-L+1 ecuatii distincte
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
AAR (Anclansarea automata a rezervei) se utilizeaza in scopul:
limitarii curentilor de scurtcircuit
cresterii continuitatii in alimentare
reducerii pierderilor de energie pe linii
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Alunecarea S a motorului asincron are valori:
cuprinse intre 1 si 0
cuprinse intre -1 si 0
diferite de marimile indicate inainte
8.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Atunci cand se compenseaza energia electrica reactiva prin baterii de condensatoare, tensiunea in reteaua electrica:
scade
nu se modifica
creste
9.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Descarcatoarele cu oxid de zinc protejeaza echipamentele din retele impotriva:
supratensiunilor
supracurentilor
solicitarilor mecanice
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