
Materiale electrice utilizate
Authored by NICOLETA RAMONA CORNELIA LAZĂR
Instructional Technology
9th Grade

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce reprezintă materialele electrice?
Baza oricărei instalații sau dispozitiv electronic
Numai conductoare
Numai magneți
Numai materiale rezistive
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care sunt proprietățile cuprului?
Conductivitate electrică excelentă
Cost ridicat
Fragilitate
Densitate mare
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce aliaje ale cuprului sunt menționate?
Alamă și Bronz
Aluminiu și Magneziu
Zinc și Fier
Argint și Aur
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este avantajul principal al aluminiului ca material conductor?
Densitate mică
Conductivitate electrică excelentă
Cost ridicat
Fragilitate
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce aplicații practice are aluminiul?
Linii electrice aeriene de înaltă tensiune
Cabluri pentru aplicații unde greutatea redusă este esențială
Radiatoare de căldură pentru componente electronice
Toate cele de mai sus
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce tip de aliaj este ideal pentru carcase de componente electronice și radiatoare de căldură?
Aluminiu cu Magneziu (Al-Mg)
Aluminiu cu Cupru (Al-Cu)
Aluminiu cu Zinc (Al-Zn)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este compoziția aliajelor de lipit în electronică?
Staniu-Plumb (Sn-Pb)
Fără plumb (Sn-Cu, Sn-Ag-Cu)
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