Residential Electrician Exam #4 /25
Questions and Answers / 100%
Correct!!!
When a single branch-circuit with an equipment grounding
conductor is supplying a detached garage from a house, what, if
any, additional grounding electrode(s) is/are required at the
garage?
a) A ground rod and underground metal water pipe.
b) A metal underground water pipe only.
c) A metal underground water pipe and building steel, if available.
d) No additional electrodes are required. - >>D: No additional
electrodes are required.
Ref: 250.32(A), Ex.
-The point of attachment of a service drop to a residence where
the voltage is 120 volts to ground is required to be at LEAST _____
above grade.
a) 8 feet
b) 10 feet
c) 12 feet
d) 15 feet - >>B: 10 feet
Ref: 230.26
, -The branch-circuit overcurrent protection device shall be
permitted to serve as the disconnecting means for stationary
motors rated NOT greater than _____ horsepower.
a) 2
b) 1
c) 1⁄ 2
d) 1⁄ 8 - >>D: 1⁄ 8
Ref: 430.109(B)
-When installing an overhead service using a rigid metal conduit
(RMC) mast for the support of the service-drop conductors, the
mast shall be of adequate strength or be _____ to withstand safely
the strain imposed by the service drop.
a) at least 2 inches in diameter
b) a minimum of 3 inches in diameter
c) supported by braces or guys
d) less than 4 feet in length - >>C: supported by braces or guys
Ref: 230.28
-When wall switches are installed in the same room with a spa or
hot tub, the MINIMUM distance from the switches to the inside
wall of the hot tub or spa shall be _____.
Questions and Answers / 100%
Correct!!!
When a single branch-circuit with an equipment grounding
conductor is supplying a detached garage from a house, what, if
any, additional grounding electrode(s) is/are required at the
garage?
a) A ground rod and underground metal water pipe.
b) A metal underground water pipe only.
c) A metal underground water pipe and building steel, if available.
d) No additional electrodes are required. - >>D: No additional
electrodes are required.
Ref: 250.32(A), Ex.
-The point of attachment of a service drop to a residence where
the voltage is 120 volts to ground is required to be at LEAST _____
above grade.
a) 8 feet
b) 10 feet
c) 12 feet
d) 15 feet - >>B: 10 feet
Ref: 230.26
, -The branch-circuit overcurrent protection device shall be
permitted to serve as the disconnecting means for stationary
motors rated NOT greater than _____ horsepower.
a) 2
b) 1
c) 1⁄ 2
d) 1⁄ 8 - >>D: 1⁄ 8
Ref: 430.109(B)
-When installing an overhead service using a rigid metal conduit
(RMC) mast for the support of the service-drop conductors, the
mast shall be of adequate strength or be _____ to withstand safely
the strain imposed by the service drop.
a) at least 2 inches in diameter
b) a minimum of 3 inches in diameter
c) supported by braces or guys
d) less than 4 feet in length - >>C: supported by braces or guys
Ref: 230.28
-When wall switches are installed in the same room with a spa or
hot tub, the MINIMUM distance from the switches to the inside
wall of the hot tub or spa shall be _____.
