
Quiz sur la puissance électrique
Quiz
•
Engineering
•
2nd Grade
•
Medium
Matar Diallo
Used 1+ times
FREE Resource
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30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est l'unité de la puissance active ?
Var
Watt
Volt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle grandeur représente la somme vectorielle de la puissance active et réactive ?
La puissance apparente
La puissance utile
La puissance de court-circuit
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En régime sinusoïdal, la puissance apparente S se calcule par :
S = U × I
S = P + Q
S = √(P + Q)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le triangle des puissances permet de visualiser :
Le déphasage tension-courant
Les pertes dans un transformateur
La relation entre P, Q et S
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le facteur de puissance est défini par :
cos(φ)
sin(φ)
tan(φ)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Une charge purement résistive a un facteur de puissance de :
0
1
Entre 0 et 1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est l'effet d'un facteur de puissance faible ?
Baisse du courant
Augmentation du courant
Diminution de la tension
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