Meccanica e materiali
Quiz
•
Professional Development
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Quale tra queste "non è" una caratteristica tecnologica dei metalli:
duttilità
malleabilità
metallurgia
fucinabilità
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
La duttilità di un metallo è:
la capacità di lasciarsi lavorare con le macchine utensili
la capacità di lasciarsi ridurre in fili sottili
la capacità di lasciarsi ridurre in lamine
la capacità di lasciarsi fondere
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
la fusione é:
il passaggio dallo stato liquido a quello gassoso
il passaggio dallo stato liquido a quello solido
il passaggio dallo stato solido a quello liquido
il passaggio dallo stato solido a quello gassoso
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
la temperatura di fusione dell'alluminio è:
circa 400°
circa 600°
circa 800°
Circa 1000°
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
la temperatura di fusione del ferro è:
circa 500°
circa 1000°
circa 1500°
Circa 2000°
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
la temperatura di fusione dello stagno è:
circa 200°
circa 400°
circa 600°
Circa 800°
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
quando un metallo non è più "elastico" ha superato il carico di:
rottura
snervamento
fragilità
puntualità
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