
Quiz de Mécanique
Quiz
•
Engineering
•
4th Grade
•
Practice Problem
•
Medium
mohamed ali ben othman
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la définition de la torsion simple d'une poutre?
La poutre est soumise à une flexion simple
La poutre est soumise à deux couples opposés de moment
La poutre est soumise à une torsion complexe
La poutre est soumise à une compression uniforme
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est l'angle unitaire de torsion en cas de déformation élastique?
θ = Mt / (G * Io)
θ = Mt / G
θ = G / Io
θ = Mt * G / Io
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la condition de résistance pour qu'un cylindre résiste en toute sécurité à un couple de torsion donné?
Mt ≤ Io / G
Mt ≤ G
Mt ≤ Io
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la contrainte tangentielle maximale en fonction du moment de torsion?
τMax = G * θ * R
τMax = G / θ * R
τMax = G * θ / R
τMax = G / θ / R
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la puissance reçue par la poulie solidaire de l'arbre d'entrée d'une boîte de vitesses de tour?
P1 = 2,95 KW
P1 = 3,15 KW
P1 = 3,45 KW
P1 = 2,65 KW
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le diamètre minimal de l'arbre d'entrée d'une boîte de vitesses de tour si on adopte τe = 120 N/mm2 pour l'acier?
d1min = 40 mm
d1min = 35 mm
d1min = 30 mm
d1min = 25 mm
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le module de torsion pour un arbre de transmission creux transmettant un couple de 30 daN.m?
30 N/mm2
40 N/mm2
50 N/mm2
60 N/mm2
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