NCCER ELECTRICAL LV 1 Module 9 QUESTIONS WITH
ANSWERS
Which of the following is true when installing grounding at more than one building? - ✔✔ The
grounded circuit conductor and equipment grounding conductor must both be extended to the
second building
A transformer supplied system operating at less than 50v must be grounded is the supplied
voltage to the transformer exceeds - ✔✔ 150v
To be effective, a grounding system must limit the voltage on the electrical system and protect it
from - ✔✔ under voltage conditions
A short circuit is a conducting connection between - ✔✔ Any conductors of an electrical system
Which of the following is a NEC requirement for grounding and bonding - ✔✔ Continuous
system
Minimum length for driving ground rods under normal conditions is - ✔✔ 8ft
Requirements for grounding services are located in what sections - ✔✔ 250.24 A,B,C, and D
System grounding relates to the - ✔✔ Service entrance equipment
ANSWERS
Which of the following is true when installing grounding at more than one building? - ✔✔ The
grounded circuit conductor and equipment grounding conductor must both be extended to the
second building
A transformer supplied system operating at less than 50v must be grounded is the supplied
voltage to the transformer exceeds - ✔✔ 150v
To be effective, a grounding system must limit the voltage on the electrical system and protect it
from - ✔✔ under voltage conditions
A short circuit is a conducting connection between - ✔✔ Any conductors of an electrical system
Which of the following is a NEC requirement for grounding and bonding - ✔✔ Continuous
system
Minimum length for driving ground rods under normal conditions is - ✔✔ 8ft
Requirements for grounding services are located in what sections - ✔✔ 250.24 A,B,C, and D
System grounding relates to the - ✔✔ Service entrance equipment
