
Quiz sur l'Échographie Doppler
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
BETTY MACHABERT
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23 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Qu'est-ce que l'échographie utilise pour créer des images ?
Des rayons X
Des infrarouges
Des ultrasons
Des ondes radio
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Quelle est la fréquence limite pour qu'un son soit considéré comme un ultrason ?
20 Hz
15 000 Hz
30 000 Hz
20 000 Hz
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Quelle est la vitesse de propagation des ultrasons dans l'air à 15°C ?
340 m.s-1
1 530 m.s-1
1 000 m.s-1
2 000 m.s-1
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Quel type de tissu correspond à des zones blanches sur une image échographique ?
Liquides
Tissus
Os
Air
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Quel est le rôle du gel appliqué sur la peau lors d'une échographie ?
Diminuer le temps d'examen
Augmenter la fréquence
Réduire la douleur
Améliorer la transmission des ultrasons
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quelle est la formule pour calculer la distance parcourue par les ultrasons lors d'une échographie ?
d = v x t
d = v x t / 2
d = 2 x v x t
d = t / v
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Qu'est-ce que l'effet Doppler ?
Un changement de fréquence
Un changement de direction
Un changement de vitesse
Un changement de couleur
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