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Vlakna

Authored by Anja Pušić

Biology

9th Grade

Used 1+ times

Vlakna
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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 BLANK QUESTION

1 min • 1 pt

Mijenja li se čvrstoća vlakana prilikom upotrebe ili preradbe?

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 BLANK QUESTION

1 min • 1 pt

Karakterizira li vlakna mala ili velika električna provodnost?

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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