
educatie tehnologica
Flashcard
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Other
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7th Grade
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Practice Problem
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Hard
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8 questions
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1.
FLASHCARD QUESTION
Front
Materialele care se toarnă bine în fome au proprietatea:
Back
duritate mare
2.
FLASHCARD QUESTION
Front
Aluminiul este un metal de culoare
Back
albă
3.
FLASHCARD QUESTION
Front
Proprietatea materialelor metalice de a se topi este
Back
Fluiditatea
4.
FLASHCARD QUESTION
Front
Galvanizarea oțelului este acoperirea acestuia cu un strat de zinc.
Back
Adevărat
5.
FLASHCARD QUESTION
Front
Propietatea mateialelor metalice de a fi trase în foi subții se numește ductilitate
Back
Adevărat
6.
FLASHCARD QUESTION
Front
Îmbinarea unui produs, format din mai multe părți componente se realizează pin:
Back
calandrare și apoi presare
7.
FLASHCARD QUESTION
Front
Ebonita este un material rigid dur obținut din: cauciuc brut cu 25-40% sulf, cauciuc brut, cauciuc natural cu 2 - 10% sulf, cauciuc natural cu 25-40% sulf
Back
cauciuc natural cu 25-40% sulf
8.
FLASHCARD QUESTION
Front
Elasticitatea este proprietatea materialelor de a reveni la forma initială atunci când se îndepărtează forța care le defomează.
Back
Fals
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