Questions with Correct Answers.
Terms in this set (511)
The typical electrical service 120\240 Volt
for homes in North America
is a_____?
The 240 Volt circuit is usedAppliances
for?
The return conductor Zero
(a.k.a. the neutral) is at ___
volts because it is grounded
to the electric panel
Most 120 Volt circuits are 15, 20
wired to deliver ___ or ___
Amps of current
Most ___ Buildings are Residential, two
supplied with 120\240 Volt
services. This means that the
cable assembly is made up of
___ ungrounded conductors
each supplying 120 V with
one ground
10
The point of attachment of
the service drop conductors
to a building or structure
must have a clearance of at
least ___ ft
,Vertical clearance for 18 feet
overhead conductors they
are over public streets
Vertical clearance for 18 feet
overhead conductors that are
over commercial parking
areas
Vertical clearance for 22 feet and 6 inches, 10 feet horizontal
overhead conductors that are
over swimming pools?
Vertical clearance for 12 feet
overhead conductors that are
over residential properties?
Vertical clearance for 3 feet from the bottom, sides and front
overhead conductors that are
from sides of doors?
The inspector should Tree limbs
recommend that any ____
Within 5 to 6 feet be cut
back
The clearance for open Open
overhead service conductors
from the front, bottom and
sides of windows
that______Is 3 feet
Every 5 to 6 feet, rigid The structure points
service mast should be
secured to ___
The method for installing a Above ground
UF cable is __
,A service entrance with ____ Four
Connected conductors is a
phase 3 supply
The typical supply for 100
square brand electric
meter is ___ amps
Most modern 200 amp 200 CL
electrical meters are
marked ___
The minimum conductor 100
size for a ___ Amp service is a
4 AWG copper or 2
AWG aluminum
_____ Is a direct connection Grounding
to the earth to aid in
removing damaging transient
over voltages due to lightning
____ Need to be bonded to All panel enclosures
the ground
Conductors between the Feeders
main service disconnect to
the distribution panels are
called ____
How can you bonded a By connecting the enclosure to the grounding bus
remote distribution panel?
100 Amps is the ____Service Minimum
required for a new
singlefamily home
Six or fewer
The electrical supply should
be shut down with ___
movements of the hand
, A common cause of arc Incorrect fasteners
flashes when removing panel
fronts is ____?
A split bus electrical panel Isolate
uses a double pole breaker to
___ The120 V circuits
Which of the following would Wire splices
NOT be a defect?
Electrical service panel 30 inches wide by 78 inches high by 36 inches deep
should be in a clear space
measuring _____?
Fused main disconnects are 100
usually a maximum of
___ amps
Upgrading to ___ fuses stops S
over fusing
Electric panel buses colored Three phase supply
red, blue, and black are
indicative of a ___?
GFCI breakers have ____ Two
conductors
What wiring would require a Solid conductor aluminum branch wiring
specialist?
Or horizontally mounted No
face up countertop
receptacles allowed?
The first kind of residential Knob and tube
wiring is called?