
Ensayos de Dureza
Authored by Brisa Sánchez
Science
12th Grade
Used 4+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Habilidad de un material para resistir esfuerzos sin llegar al fallo se le conoce como:
Resistencia
Dureza
Rigidez
Tenacidad
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Indentador comúnmente utilizado durante la prueba de dureza es:
De bola
Pirámide
Cono
Todas las anteriores
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
En la prueba de dureza Brinell, el diámetro utilizado del indentador para un especimen de cobre es:
1 mm
3 mm
5 mm
7 mm
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
La dureza se define como la resistencia que opone un material a ser deformado plásticamente por penetración o rayado.
Verdadero
Falso
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
La relación entre la carga de prueba y el área de superficie de la huella en esta prueba es:
Resistencia al corte
Número de indentador
Número de dureza brinell
Ninguna de las anteriores
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
El valor de la distancia entre indentaciones sucesivas es siempre menor que la distancia entre el centro de la indentación y el borde de la muestra.
Verdadero
Falso
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
El diámetro de la impresión se mide por:
Micrómetro
Reloj medidor
Observación Microscópica
Escala
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