
Materiale metalice
Passage
•
Other
•
7th Grade
•
Practice Problem
•
Hard
Stefan Iacob
Used 1+ times
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13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Care este rolul unui șurub?
Answer explanation
Surubul este utilizat la realizarea de fixări mecanice, de îmbinări demontabile a două ori a mai multor piese.
2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Din ce material este fabricat șurubul?
Answer explanation
Suruburile sunt realizate din diverse materiale in functie de aplicatia lor. In cele mai multe cazuri din otel(carbon,inoxidabil) dar si din alama,titan.
3.
OPEN ENDED QUESTION
3 mins • 1 pt
Ce se întâmplă dacă filetul șurubului este uzat?
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Answer explanation
Daca filetul unui surub este uzat,pot aparea mai multe probleme: scaderea capacitatii de strangere,risc de desfacere in timpul functionarii,alunecarea filetului.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este procesul de obținere a obiectelor metalice prin adăugarea de straturi succesive?
Answer explanation
Imprimarea 3D, denumită și fabricație aditivă, este un proces tehnologic de producție prin care un obiect solid tridimensional, indiferent de configurație și formă, este creat prin adăugarea succesivă de straturi de material.
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Ce formă are tija unui șurub?
Answer explanation
Cilindrica,cu filet pe exterior.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce face un lăcătuș?
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Care dintre următoarele meserii se ocupă cu prelucrarea metalelor?
Turnător
Oțelar
Designer de modă
Bucătar
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