
Gaasid keevitamisel
Quiz
•
Professional Development
•
10th Grade
•
Practice Problem
•
Medium
Andrus Raal
Used 9+ times
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mida kujutab endast täielik põlemine?
Aine põleb täiesti ära
Põlemiseks on hapnikku piisavalt ja tekib süsinikoksiid
Põlemiseks on hapnikku piisavalt ja tekib süsinikdioksiid
Põlemisel on hapnikku puudujääk ja tekib süsinikoksiid
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on nn kuiv jää.
Mittesulav jää, mis on tekkinud veest
Tahke süsihappegaas
Jää, mis tekib lubjakivist
Tahke vingugaas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vingugaasi valem:
CO2
CO
CaCO3
CaC2
4.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Mida kirjeldab järgmine võrrand: C + O2 = CO2
Süsinikurikaste kütuste täielikku põlemist
Süsinikurikaste kütuste mittetäielikku põlemist
Süsinikdioksiidi tekkimist
Süsinikoksiidi tekkimist
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kus ei kasutata süsihappegaasi?
Keevitamisel
Tulekustutites
Õhupallide täitmisel
Toidukaupade säilitamisel.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atsetüleeniballooni ehituse eripära:
Balloon valmistatud plastikust
Balloon on täidetus poorse materjaliga või peenikeste torudegd
Balloon suurema mahuga
Balloonis on vesi sees.
7.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Millist ainet kirjeldatakse järgmise valemiga: C2H2
Propaan
Etüün
Atsetüleen
Butaan
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