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While grounding prevent excessive voltage you need lightning or lie surges it does not stabilize voltage during normal operation true or false
False
Which conductors are grounded on a single phased three wire 120/240 V system
Neutral
The neutral conductor is always larger than the ungrounded conductor true or false
Residential electrical service are grounded by connecting the ground conductors to a grounding electroad at the
Service drop connection
Which of the following is a NEC violation when using as a grounding electrode
Underground gas line
The maximum distance allowed by the nec to connect a grounded conductor to a water pipe after the pipe enters a building is
Ten feet
Which is the following is use to Connect a grounding rod with a grounding conductor
A grounding clamp
The conducting connection whether intentional or accidental between any of the conductors of an electrical system is known as a
Short circuit
Only following are suitable materials for ground rods except
Half inch solid aluminum rods
Which of the following copper AWG sizes should be used for the grounding conductor for a 200 app service using 3 / 0 copper conductors
No.4
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