
Všeobecný Test=2023
Quiz
•
others
•
Professional Development
•
Hard
Vincent Filip
FREE Resource
Enhance your content in a minute
67 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1.Jaké jsou povolené odchylky jmenovitých napájecích napětí sítí nn? (ČSN EN 50160 ed.3, čl. 4.2.1)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.Izolované vodiče vedení v síti AC musí být označeny barvou: (ČSN EN 60445 ed.6, čl. 6.2.3)
3.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
3.Izolované vodiče vedení v síti DC musí být označeny barvou: (ČSN EN 60445 ed.6, čl.6.2.4)
4.
MULTIPLE SELECT QUESTION
30 sec • Ungraded
4.Jaké jsou přednostní barvy pro vodič PEN? (ČSN EN 60445 ed.6, čl. 6.3.3)
5.
MULTIPLE SELECT QUESTION
30 sec • Ungraded
5.Jaké krytí značí IPX6? (ČSN EN 60529:1993, čl. 6 a Tabulka III)
6.
MULTIPLE SELECT QUESTION
30 sec • Ungraded
6.Jaké krytí značí IP4X? (ČSN EN 60529:1993, čl. 5 a Tabulka II)
7.
MULTIPLE SELECT QUESTION
30 sec • Ungraded
7. Sítě TN se rozlišují podle uspořádání středních a ochranných vodičů. Jaký způsobem lze charakterizovat síť TN-C-S? (ČSN 33 2000-1 ed.2, čl. 312.2 a čl. 312.2.1.1)
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