
Cuprul și aluminiul
Other
9th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuprul este un metal de culoare:
roșiatică;
albă;
aurie
neagră;
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alamele sunt aliajele cuprului cu:
plumb;
zinc;
mangan;
aluminiu;
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aliajul CuZn 20 conține:
20% cupru
80 % zinc
20% zinc
20 aluminiu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aliajul CuZn 38Pb 2Mn 2 conține:
2% cupru
2% zinc
2% plumb
2%staniu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
În aliajele anticorosive aluminiu este aliat cu:
magneziu;
plumb;
fontă;
cupru;
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aluminiu este un metal de culoare:
galbenă;
albă;
roșiatică;
albastră;
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aliajul ATSi 5 Cu3 conține:
5% Siliciu
3% Siliciu
5% Cupru
5% Aluminiu
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