BEK 2.roč - Magnéziové stavivá

Quiz
•
Education
•
10th Grade - University
•
Medium
Zuzana Zuzana
Used 2+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Označ tri oblasti, kde sa ťaží MgCO3 s nízkym obsahom nečistôt:
Slovensko
Balkán
India
Rusko
Južná Afrika
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aká je minimálna teplota výpalu magnezitového slinku?
1200 °C
1500 °C
1700 °C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Akú dlhú dobu sa vypaľujú magnezitové tvarovky?
2-3 hodiny
3-5 dní
5-8 dní
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Majú magnezitové výrobky dobrú odolnosť voči zmenám teplôt?
áno
nie
iba za sucha
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aké teploty znášajú magnezitové stavivá?
nad 600 °C
nad 1200 °C
nad 1700 °C
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