
Biela liatina
Authored by Petra Ndoja
Science
2nd Grade
Used 2+ times

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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Čo je biela liatina? Je to zliatina _______ s uhlíkom a inými prvkami.
železa
hliníka
medi
olova
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemické zloženie bielej liatiny je podobné sivej liatine, s výnimkou ktorého prvku, ktorého je menej?
Mangán
Kremík
Uhlík
Vápnik
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Štruktúra bielej liatiny obsahuje perlit a _______ (NIE GRAFIT).
cementit
ferit
austenit
karbid kremíka
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vplyvom cementitu je biela liatina veľmi tvrdá, krehká a obrobiteľná iba _______.
brúsením
rezaním
vŕtaním
leštením
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Použitie bielej liatiny je obmedzené iba na odliatky. Uveď príklad použitia:
mlecie dosky, mlecie telesá, rošty a pod.
ložiskové puzdrá v automobiloch
pružiny v hodinách
nástroje na rezanie dreva
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hlavný význam bielej zliatiny spočíva v tepelnom spracovaní odliatkov na _______ liatinu.
temperovanú
šedú
tvrdú
kovanú
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Čo je temperovaná liatina? (Doplňte správnu odpoveď)
Je to húževnatý dobre obrobiteľný materiál, ktorý sa vyrába tepelným spracovaním (temperovaním) bielej liatiny.
Je to druh ocele s vysokým obsahom uhlíka, ktorý sa používa na výrobu nožov.
Je to zliatina medi a cínu používaná na výrobu mincí.
Je to druh plastu, ktorý je odolný voči vysokým teplotám.
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