
MCCE
Quiz
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Science
•
University
•
Practice Problem
•
Easy
Felicia Crăciunescu
Used 15+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Curba de iritabilitate corespunde valorii:
Plt=0,95
Plt=1
Pst=0,95
Pst=1
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Golurile de tensiune la barele de alimentare pot sa apara datorita:
variatiei necesarului de energie electrica a utilizatorilor
unui scurtcircuit trifazat la bare
pornirii unui motor mare, cuplat la bare
deconectarii unei linii aeriene de la bare
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In evaluarea susceptibilitatii echipamentelor informatice la golurile de tensiune este folosita
curba CBEMA
curba de probabilitate cumulata
indicatorul STARFIx%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Metoda MPPT P&O (Perturba si Observa) are o strategie de determinare bazata pe:
observarea variatiei puterii sistemului fotovoltaic cand se impune o anumita perturbare a intregii instalatii
observarea variatiei curentului sistemului fotovoltaic cand se impune o anumita perturbare a intregii instalatii
nici una din tehnicile de mai sus
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Impactul GD asupra calitatii energiei electrice depinde de o multitudine de factori, cum ar fi:
schema de interfata a GD cu reteaua de distributie a energiei electrice
variabilitatea sursei primare de energie
modalitatea de a produce sau absorbi putere reactiva in diversele conditii de functionare
caracteristicile sistemului in care generatorul este interconectat
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Factorul total de distorsiune se normeaza pentru:
tensiune
curent electric
tensiune in PCC
curent electric in PCC
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Metoda MPPT IncCond (Conductanta Incrementala) are o strategie de determinare bazata pe:
observarea derivatiei puterii sistemului fotovoltaic cand se impune o anumita perturbare a intregii instalatii
observarea derivatiei puterii sistemului fotovoltaic in functie de tensiune
nici una dintre tehnicile de mai sus
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