Where conduits enter a floor-standing switchboard or panelboard at the bottom, the conduits including their end fittings, shall not rise more than _____ above the bottom of the enclosure.
a) 6 inches
b) 4 inches
c) 2 inches
d) 3 inches - ANSWERD: 3 inches
Ref: 408.5
When installed on the ...
Where conduits enter a floor-standing switchboard or panelboard at the bottom, the conduits
including their end fittings, shall not rise more than _____ above the bottom of the enclosure.
a) 6 inches
b) 4 inches
c) 2 inches
d) 3 inches - ANSWERD: 3 inches
Ref: 408.5
When installed on the service of a building or structure, a type 2 SPD (TVSS) shall be connected
_____.
a)on the line side of the service disconnect overcurrent device
b) on the load side of the service disconnect overcurrent device
c) on the meter housing
d) at the final overcurrent device - ANSWERB: on the load side of the service disconnect overcurrent
device
Ref: 285.24(A)
A detached garage supplied from a dwelling with a three-wire feeder of size 4/0 AWG aluminum USE
cable with a 200-ampere rated circuit breaker for overcurrent protection requires a MINIMUM size
copper grounding electrode to a concrete encased electrode of _____ AWG.
a) 8
b) 6
c) 4
d) 2 - ANSWERC: 4
Ref: 250.52(A)(3)
, When a raceway is run from the interior to the exterior of a building, the raceway shall _____.
a) be rigid metal conduit (RMC)
b) be rigid polyvinyl chloride conduit (PVC)
c) be sealed with an approved material
d) have an explosion-proof seal - ANSWERC: be sealed with an approved material
Ref: 300.7(A)
A disconnecting means shall be provided on the supply side of all fuses in circuits having a voltage of
at LEAST _____ volts to ground.
a) 120
b) 250
c) 150
d) 277 - ANSWERC: 150
Ref: 240.40
Ref: 501.15(A)(1)
Surface-mounted incandescent luminaires installed on the wall above the door or on the ceiling of a
clothes closet shall have a clearance of at LEAST ____ between the luminaire and the nearest point
of storage.
a) 6 inches
b) 8 inches
c) 18 inches
d) 12 inches - ANSWERD: 12 inches
Ref: 410.16(C)(1)
The NEC considers the area around the fuel dispensing pumps at a service station to be a hazardous
location. This area extends a height of 18 inches above grade, and up to a distance from the
enclosure of the dispensing pump of _____.
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