
Quiz despre Termobimetale și Miezuri Magnetice
Quiz
•
Instructional Technology
•
9th Grade
•
Hard
NICOLETA RAMONA CORNELIA LAZĂR
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce este un termobimetal?
O lamă sau un disc din două metale diferite
O piesă din material feromagnetic
Un dispozitiv de măsurare a temperaturii
Un tip de senzor electronic
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este scopul principal al termobimetalelor?
Transformarea schimbărilor de temperatură în mișcare mecanică
Reglarea vitezei motoarelor electrice
Transformarea electricității în căldură
Detectarea câmpului magnetic
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce tip de materiale sunt folosite pentru miezuri magnetice?
Materiale conductoare
Materiale feromagnetice dure
Materiale izolatoare
Materiale feromagnetice moi
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este un exemplu de aplicație a termobimetalelor?
Transformatoare electrice
Termostate
Senzori inductivi
Miezuri magnetice
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce caracteristică a termobimetalelor le permite să reacționeze la variațiile de temperatură?
Forma geometrică
Proprietățile magnetice
Diferența coeficientului de dilatare
Conductivitatea electrică
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cum funcționează un miez magnetic?
Produce electricitate
Concentrează și dirijează liniile de câmp magnetic
Încălzește aparatele electrice
Reduce dimensiunea circuitelor electrice
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce tip de miez magnetic este utilizat frecvent în transformatoare?
Magneți permanenți
Materiale ceramice
Aliaje de aluminiu
Oțel electrotehnic
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