Metali se dobivaju iz
METALI, SVOJSTVA METALA I LEGURA

Quiz
•
Instructional Technology
•
7th Grade
•
Medium
Ivana Carić
Used 22+ times
FREE Resource
8 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
ruda
nalaze se čisti u prirodi
vulkanizacijom
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Najčešće se rabe metali: ( više odgovora je točno)
aluminij
plastika
željezo
zlato
iverica
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
SLITINE ILI LEGURE su:
znanost koja proučava postupke dobivanja metala
mješavine metala s drugim metalima ili nemetalima zbog poboljšanja svojstva
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Metalurgia je znanost koja se bavi dobivanjem metala iz ruda te preradom tih metala
Točno
Netočno
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Metalurgija se dijeli u dvije skupine:
Lake i teške metale
Obojenu i neobojenu metalurgiju
Crna metalurgija i obojena metalurgija
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Mehanička svojstva metala su
dobra vodljivost el. struje, topline i relativno velika gustoća
otpornost na koroziju i vatrootpornost
čvrstoća, tvrdoća, žilavost, elastičnost i plastičnost
lijevnost i kovnost
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Zanimanja u metalskoj industriji
klesar
limar
tokar
bravar
električar
8.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
LIMAR
zagrijavanjem spaja metalne dijelove.
izrađuje dijelove metalnih konstrukcija i obrađuje limove, metalne profile i cijevi.
zagrijavanjem spaja kamene dijelove
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