RESIDENTIAL ELECTRICAL INSPECTOR EXAM |QUESTIONS
WITH CORRECT DETAILED ANSWERS
Electrical devices operating at less than ___ volts and not supplying more than ___
watts of energy shall be exempt from requiring an electrical permit. - ANSWER-25,50
Section R105.2 Electrical #4
Who has the authority to give permission to provide temporary power? - ANSWER-
Building Official
Section R107.3
An approved enclosure shall be used to guard people against accidental contact with
energized parts that operate at a minimum of ______ volts. - ANSWER-50
Section E3404.9
,A ______ conductor is a conductor that is encased within a material or has a
thickness NOT recognized by the IRC as electrical insulation. - ANSWER-Covered
Definitions Section E3501 - Conductor, Covered
When splicing, terminating, or connecting a conductor to a fixture or device the
minimum length of free conductor required at an outlet, junction box, or switch point
shall be at least ____ inches? - ANSWER-6
Section E3406.11.3
Electrical copper conductors used for feeders and branch circuits shall have a
minimum size of ______. - ANSWER-No. 14 AWG
Section E3406.3
An overhead service conductor spanning over a driveway shall maintain a minimum
vertical clearance of ____ feet from final grade. - ANSWER-12
Section E3604.2.2 #2
The mounting supports used to support service-entrance cables shall be located
within ____ inches of the service head and at intervals no greater than ____ inches. -
ANSWER-12,30
Section E3605.7
, A minimum clearance not less than ____ feet shall be provided between the side of a
door and an open service conductor without an overall outer jacket. - ANSWER-3
Section E3604.1
An open service conductor shall have a minimum vertical clearance of no less than
___ feet above a roof that has a 5:12 roof slope. - ANSWER-3
Section E3604.2.1 Exception 2
True or False. The disconnecting means for an electrical service cannot be installed
in a bathroom. - ANSWER-True
Section E3601.6.2
A metal underground water pipe must be in direct contact with the earth for a
minimum of ___ feet to be considered as a grounding electrode. - ANSWER-10
Section E3608.1.1
A ground ring can be used as a grounding electrode if located a minimum ___ inches
below the earth and at least ___ feet of bare copper wire no smaller than ___ AWG is
used. - ANSWER-30, 20, 2
Section E3608.1.3
Two grounding rods used in one grounding electrode system must be located at least
___ feet apart. - ANSWER-6
WITH CORRECT DETAILED ANSWERS
Electrical devices operating at less than ___ volts and not supplying more than ___
watts of energy shall be exempt from requiring an electrical permit. - ANSWER-25,50
Section R105.2 Electrical #4
Who has the authority to give permission to provide temporary power? - ANSWER-
Building Official
Section R107.3
An approved enclosure shall be used to guard people against accidental contact with
energized parts that operate at a minimum of ______ volts. - ANSWER-50
Section E3404.9
,A ______ conductor is a conductor that is encased within a material or has a
thickness NOT recognized by the IRC as electrical insulation. - ANSWER-Covered
Definitions Section E3501 - Conductor, Covered
When splicing, terminating, or connecting a conductor to a fixture or device the
minimum length of free conductor required at an outlet, junction box, or switch point
shall be at least ____ inches? - ANSWER-6
Section E3406.11.3
Electrical copper conductors used for feeders and branch circuits shall have a
minimum size of ______. - ANSWER-No. 14 AWG
Section E3406.3
An overhead service conductor spanning over a driveway shall maintain a minimum
vertical clearance of ____ feet from final grade. - ANSWER-12
Section E3604.2.2 #2
The mounting supports used to support service-entrance cables shall be located
within ____ inches of the service head and at intervals no greater than ____ inches. -
ANSWER-12,30
Section E3605.7
, A minimum clearance not less than ____ feet shall be provided between the side of a
door and an open service conductor without an overall outer jacket. - ANSWER-3
Section E3604.1
An open service conductor shall have a minimum vertical clearance of no less than
___ feet above a roof that has a 5:12 roof slope. - ANSWER-3
Section E3604.2.1 Exception 2
True or False. The disconnecting means for an electrical service cannot be installed
in a bathroom. - ANSWER-True
Section E3601.6.2
A metal underground water pipe must be in direct contact with the earth for a
minimum of ___ feet to be considered as a grounding electrode. - ANSWER-10
Section E3608.1.1
A ground ring can be used as a grounding electrode if located a minimum ___ inches
below the earth and at least ___ feet of bare copper wire no smaller than ___ AWG is
used. - ANSWER-30, 20, 2
Section E3608.1.3
Two grounding rods used in one grounding electrode system must be located at least
___ feet apart. - ANSWER-6
