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materijali u mašinstvu

Authored by Dajana Pavlovic

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materijali u mašinstvu
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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Legura bakra koja sadrži 30-40% cinka zove se

Kalaj

Bronza

Mesing

2.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Legure su

Mešavine dva ili vise nemetala

Mešavine dva ili vise metala i nemetala

3.

MULTIPLE CHOICE QUESTION

45 sec • 4 pts

Aluminijum je dobar provodnik elektriciteta i toplote, otporan na koroziju i lak metal

Netačno

Tačno

4.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Maziva sluze da sprečavaju neposredan dodir izmedju dodirnih povrsina

Tačno

Netačno

5.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Sive boie, dobar provodnik toplote, izražene tvrdoće, čvrstoće i elastičnosti, može da se obradjuje....

Bakar

Čelik

6.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Keramički materijali nisu dobri toplotni i električni izolator, tvrdi su i krti.

Tačno

Netačno

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Koja od legura aluminijuma je pogodan za livenje

Magnalijum

Silumin

Duraluminijum

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