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EVITP Grounding and Bonding Test Questions and Answers 100% Correct
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EVITP Grounding and Bonding Test Questions and Answers 100% Correct
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EVITP Grounding and Bonding TestQuestions and Answers 100% Correct
Ultimately, the ground fault is cleared when the ______. - ANSWER Over
current devices and opened
The requirements for grounding of services are located in _____. - ANSWER
NEC 250.24 A,B,C and D
System grounding relates to the _____. - ANSWER Service entrance equipment
The minimum diameter of galvanized pipe allowed for a grounding electrode is
_____. - ANSWER 3/4"
The minimum length allowed for driven ground rods under normal conditions is
_____. - ANSWER 8'
Where there is a requirement to add a second grounding electrode, the two
electrodes must be spaced at least _____. - ANSWER 6' apart
To be effective, a grounding system must limit the voltage on the electrical system
and protect it from _____. - ANSWER Voltage surges
The key to successfully clearing ground fault currents is _____. - ANSWER
Electrical continuity
, The maximum value of a short circuit current from line-to-ground _____. -
ANSWER Depends on distance from source to fault
Which type of system is required to be grounded? - ANSWER AC Systems over
1K Volts
Which of the following is an NEC requirement for grounding and bonding? -
ANSWER The path to ground from circuits, equipment + metal enclosures, shall
be permanent and continuous
If Single-Gang Nail-On non-metallic boxes are used with NM cable, which of the
following is true? - ANSWER No connection to box
A separately derived system is a premises wiring system that is _____. -
ANSWER Derived from a source of power other than service
Equipment grounding refers to connecting the normally noncurrent-carrying metal
parts of equipment to the system grounded conductor and/or _____. -
ANSWER The grounding electrode conductor
In a separately derived system, the equipment bonding jumper connects _____. -
ANSWER System housing to neutral bus bar
A ground ring consisting of 20' of No.2 bare copper must be buried no less than
_____. - ANSWER 2.5' below grade
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