
Aliaje
Authored by Daniela Șterbeț
Chemistry
9th - 10th Grade
Used 4+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aliajele sunt:
soluții solide ale metalelor
compuși chimici în care există un element metalic.
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Aliajele ce conțin fier sunt:
fonta
oțelul
amalgamul
bronzul
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fonta conține:
1,8-5 % fier
până la 1,8 % carbon
până la 10% carbon
1,8-5 % carbon
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Despre fontă se poate afirma că:
este materie primă pentru producerea oțelului
este elastică
este casantă
se utilizează pentru producerea ceaunelor.
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Despre oțel se poate afirma că:
prin reducerea % de C se transformă în fontă.
este elastic.
se obține prin oxidarea fontei.
se utilizează pentru producerea arcurilor.
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Bronzul este un aliaj ce conține:
Fe și Cu
Sn și Cu
Cu și Pb
Al și Mg
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Duraluminiu este un aliaj al aluminiului cu:
Mg
Mn
Fe
Cu
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