Vprašanja za ponavljanje

Vprašanja za ponavljanje

12th Grade

22 Qs

quiz-placeholder

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Vprašanja za ponavljanje

Vprašanja za ponavljanje

Assessment

Quiz

Science

12th Grade

Hard

Created by

Sindis Čufer

Used 2+ times

FREE Resource

22 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tališče čistega železa?

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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