
puesta a tierra
Authored by Dante Limón
Physics
Professional Development
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En un sistema de puesta a tierra, que elementos deben estar puestos a tierra:
envolventes de equipos
canalizaciones
cajas de conexión
todas las anteriores
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para un circuito cuya protección contra sobrecargas es de 15A, le corresponde según la tabla 250-95 un conductor de puesta a tierra del calibre:
18 AWG
14 AWG
12AWG
10AWG
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para un circuito cuya protección contra sobrecargas es de 30A, le corresponde según la tabla 250-95 un conductor de puesta a tierra del calibre:
8 AWG
10 AWG
11 AWG
12 AWG
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para un circuito cuya protección contra sobrecargas es de 20A, le corresponde según la tabla 250-95 un conductor de puesta a tierra del calibre:
14 AWG
8 AWG
15 AWG
12 AWG
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para un circuito cuya protección contra sobrecargas es de 50A, le corresponde según la tabla 250-95 un conductor de puesta a tierra del calibre:
6
8
11
NINGUNA DE LAS ANTERIORES.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si los cables de la acometida son del calibre 8; que calibre le corresponde al conductor del electrodo de puesta a tierra...
6 AWG.
8 AWG.
10 AWG.
12 AWG.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La resistencia total del sistema de electrodos de puesta a tierra debe ser de:
0 Ω
≤50 Ω
≥25 Ω
≤25 Ω
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