Tališče čistega železa?

Vprašanja za ponavljanje

Quiz
•
Science
•
12th Grade
•
Hard
Sindis Čufer
Used 2+ times
FREE Resource
22 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1600°C
1536°C
1550°C
1500°C
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Katera spojina nastane med železom in ogljikom pri hitrem ohlajanju?
a) Grafit
b) Fe3C (cementit)
c) Ferit
d) Avstenit
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Katere legirne elemente dodajamo za razširitev območja γ (avstenitnega območja)?
a) Mn, Ni, C
b) Si, Al, Cr
c) Fe, Mo, P
d) Sn, Ti, Zn
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Katera reakcija nastopi pri 1147°C v binarnem sistemu železo-ogljik?
a) Peritektska reakcija
b) Evtektoidna reakcija
c) Evtektska reakcija
d) Strjevanje grafita
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Katera faza železa je obstojna pri sobni temperaturi?
a) Avstenit
b) Cementit
c) Ferit
d) Feδ
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kateri delež ogljika ima evtektoidno jeklo?
a) 0,02 % C
b) 0,76 % C
c) 2,14 % C
d) 4,3 % C
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kateri element omogoča izločanje grafita v stabilnem sistemu?
a) Ogljik
b) Žveplo
c) Krom
d) Kisik
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