
Laboratoorsed vahendid - test
Authored by Mariana Naaber
Science
11th Grade
Used 1+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milline on katseklaaside peamine kasutuslaboris?
Ainete säilitamine pikaajaliselt
Ainete kuumutamine ja reaktsioonide läbiviimine
Destilleerimine
Vaakumfiltreerimine
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millistest materjalidest valmistatakse enamasti keeduklaase?
Paksuseinaline metall
Õhukeseseinaline klaas
Portselan
Plastik
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on Erlenmeyeri kolvi peamine eripära?
See on koonilise kujuga ja sobib tiitrimiseks.
See on pika peene kaelaga ja gradueeritud.
Seda kasutatakse ainult keemistemperatuuride määramiseks.
See on alati kaanega suletud.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millist vahendit kasutatakse mittesegunevate vedelike eraldamiseks?
Lehtreid
Jaotuslehtrit
Büchneri lehtrit
Pipette
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuidas võtta lugem vedelikust büretil?
Vaadates meniski alumist punkti silmaga samalt tasapinnalt
Vaadates meniski ülemist punkti suvalisest nurga alt
Lugedes skaalat pöörleval alusel
Vaadates silmade kõrguselt, kuid ilma meniskita arvestamata
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Millise laboriseadme puhul on oluline kasutada keraamilist võrku kuumutamisel?
Erlenmeyeri kolb
Katseklaas
Ümarkolb
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis eesmärgil kasutatakse Büchneri lehtrit?
Lehtainete peenestamine
Filtreerimine alandatud rõhul
Tilkhaaval vedelike lisamine
Vedelike valamine peenekaelalistesse nõudesse
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