
KOVINE
Authored by Monika Zupanc
Science
8th Grade
Used 44+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Katera kovina je pri sobni temperaturi v tekočem stanju?
živo srebro
baker
aluminij
cink
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Katera kovina ima največjo trdoto in katera najmanjšo?
Največjo trdoto ima baker, najmanjšo pa volfram.
Največjo trdoto ima aluminij, najmanjšo jeklo.
Največjo trdoto ima jeklo, najmanjšo pa aluminij in svinec.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kako se imenuje toplotna obdelava, ki se izvaja z namenom, da izdelkom povečamo trdoto.
varjenje
vrtanje
brušenje
kaljenje
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Kako lahko površinsko oplemenitimo kovine?
barvamo
lakiramo
plastificiramo
kalimo
vijačimo
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Postopek ločevanje rud od jalovine in drugih snovi imenujemo:
žilavljenje
separacija
izkopavanje
kaljenje
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Industrijsko dejavnost, ki se ukvarja s pridobivanjem kovin iz rude ter njihovo nadaljnjo uporabo imenujemo:
arheologija
biologija
kromiranje
metalurgija
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kje pridobivajo surovo železo ali grodelj?
v plavžu
v rudniku
v Zemljini skorji
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