
Vlakna
Authored by Anja Pušić
Biology
9th Grade
Used 1+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Duljina vlakana definirana je kao:
omjer sile i duljine mase
površina poprečnog presjeka
jednolikost vlakna
omjer duljine i promjera
2.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Mijenja li se čvrstoća vlakana prilikom upotrebe ili preradbe?
(a)
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Čvrstoća vlakna smanjuje se djelovanjem:
kemijskih sredstava
sile
ultraljubičastog zračenja
topline
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sposobnost upijanja vlage i vode naziva se:
jednolikost
toplinsko svojstvo
higroskopnost
egzotermnost
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Karakterizira li vlakna mala ili velika električna provodnost?
(a)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Monomer je:
elektron
atom
molekula
kemijski spoj
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Polimerni materijali su:
plastika
najlon
svila
sintetski kaučuk
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