ANSWERS | GRADED A+| PASS ON FIRST ATTEMPT | BRAND NEW
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. - ANSWER 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 - ANSWER 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 - ANSWER D: 1⁄ 8
Ref: 430.109(B)
1
, 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 - ANSWER 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 _____.
a) 5 feet
b) 10 feet
c) 15 feet
d) 18 feet - ANSWER A: 5 feet
Ref: 680.43(C)
All 15- and 20-ampere, single-phase, 125-volt receptacle outlets located at LEAST _____
from the inside walls of a swimming pool shall be provided with GFCI protection.
a) 10 feet
b) 15 feet
c) 20 feet
d) 25 feet - ANSWER C: 20 feet
Ref: 680.22(A)(4)
A luminaire shall be supported independently of the outlet box when it weighs more than
_____ pounds, unless the outlet box is listed for the weight to be supported.
a) 6
2
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. - ANSWER 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 - ANSWER 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 - ANSWER D: 1⁄ 8
Ref: 430.109(B)
1
, 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 - ANSWER 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 _____.
a) 5 feet
b) 10 feet
c) 15 feet
d) 18 feet - ANSWER A: 5 feet
Ref: 680.43(C)
All 15- and 20-ampere, single-phase, 125-volt receptacle outlets located at LEAST _____
from the inside walls of a swimming pool shall be provided with GFCI protection.
a) 10 feet
b) 15 feet
c) 20 feet
d) 25 feet - ANSWER C: 20 feet
Ref: 680.22(A)(4)
A luminaire shall be supported independently of the outlet box when it weighs more than
_____ pounds, unless the outlet box is listed for the weight to be supported.
a) 6
2
