Residential Electrician Exam 4
Questions and answers | Latest 2024/25 RATED A+
, 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 ground rod and underground metal water pipe.
A metal underground water pipe only.
A metal underground water pipe and building steel, if available.
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.
8 feet
10 feet
12 feet
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.
2
1
2
- D: 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.
at least 2 inches in diameter
a minimum of 3 inches in diameter
supported by braces or guys
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 .
5 feet
10 feet
15 feet
Questions and answers | Latest 2024/25 RATED A+
, 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 ground rod and underground metal water pipe.
A metal underground water pipe only.
A metal underground water pipe and building steel, if available.
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.
8 feet
10 feet
12 feet
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.
2
1
2
- D: 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.
at least 2 inches in diameter
a minimum of 3 inches in diameter
supported by braces or guys
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 .
5 feet
10 feet
15 feet
