Code Test
An equipment grounding conductor pigtail (wire that does not leave the box) in a box is counted __ times for conductor fill
0
Eight grounding conductors enter and are spliced in a box with no devices. The total volume allowances required for these grounding conductors for box fill purposes is
1
The total number of volume allowances required for a luminaire stud for box fill purposes
1
Two internal cable clamps are in the same box. The total number of volume allowances required for these items for box fill purposes is?
1
An outlet box without enclosed devices shall have an internal depth of not less than ___ inches?
1/2"
There will be no gaps or open spaces greater than ___ inches at the edge of a box mounted in drywall employing a flush type cover or faceplate
1/8
In general the minimum vertical clearance for any overhead service conductors installed anywhere is ___ feet from final grade
10
In general the minimum rating of the service disconnecting means required for any one family dwelling is
100 amps
Cartridge fuses rated___volts nominal or less shall be permitted to be used for voltages at or below their rating
1000
Where the supply conductors are larger than ___ copper the bonding jumper shall have an area not less than 12.5% of the largest ungrounded supply conductor
1100 KCMIL
Service entrance cables shall be supported by straps within ___ inches of every service head
12
An example of a slash voltage rating marked on a circuit breaker is
120/240
The maximum OCPD for a #14 AWG copper is
15
A disconnecting means shall be provided on the supply side of all fuses in circuits___volts to ground
150
In Wisconsin, the minimum rating of the service disconnecting means for a multi-family dwelling is ___
150 amps
Field assembled extension cord sets supplied by a 20 amp branch circuit shall be made using # ___Awg or larger cord
16
The minimum vertical clearance from final grade for overhead service conductors installed over a public street is ___ feet
18
The minimum size 4 inch square box required for ten #8s is?
2-1/8
A #10 AWG wire requires ___ volume allowance inside of a box
2.50
A ground ring shall consist of at least ___ feet of #2 AWG bare copper wire
20
An additional service shall be permitted where the capacity requirements are in excess of ___ amps at a supply voltage of 1000 volts or less
2000
All metal boxes shall be grounded in accordance with article
250
In general service conductors shall have a clearance of ___ feet from windows that are designed to open
3
In general service conductors shall have a clearance on buildings of ___ feet from a door
3
Raceway supported enclosures shall have each conduit providing support secured within ___ ' if the conduits are not on the same side
3
Service conductors ran above the top level of an openable window shall be permitted to be less than the ___ ' clearance requirement
3
Grounding electrodes of pipe or conduit shall not be smaller than trade size
3/4
Adjustment factors for current carrying conductors in metal wireways only apply where the number of current carrying conductors exceeds __
30
Where rock bottom is encountered when driving rod & pipe electrodes, the electrode shall be permitted to be buried in a trench at least how many inches deep
30
The minimum size ungrounded conductor allowed for a 100 amp 120/240 volt 3 wire, single phase dwelling service is a # ___ copper
4
In all spans exceeding ___ feet, overhead conductors for festoon lighting shall be supported by messenger wires
40
Where rock bottom is encountered when driving rod & pop electrodes, the electrode shall be driven at an oblique angle not to exceed how many angles
45
The maximum length of a #18 AWG fixture wire that could be taped into a 20 amp circuit is
50
In general the maximum number of service disconnects shall consist of not more than ___ switches or sets of circuit breakers
6
The minimum size copper equipment grounding conductor that can be used on a 200 amp circuit is
6
A listed outlet box can be used as the sole support of a ceiling - suspended paddle fan that weighs no more than ___ lbs
70
In Wisconsin, service entrance cables shall not extend longer than ___ feet into a building to the service disconnecting means
8
In general the minimum size overhead service conductors permitted by the NEC is ___ AWG copper
8
In general the minimum size underground service conductors permitted by the NEC are ___ AWG copper
8
In general, rod & pipe electrodes shall be driven to a depth of not less than ___ feet in length
8
In general, rod & pipe electrodes shall be installed such that at least ___ length of the electrode is in contact with the soil
8
Rod & pipe electrodes shall not be less than ____ feet in length
8
What size aluminum equipment grounding conductor is required to be ran with conductors in a single conduit that feed a 60 amp fusible switch?
8
In general service heads on raceway shall be located ___ the point of attachment of the service drop conductors
Above
Metal wireway is permitted to be used as an extension passing through a wall if ___ to the conductors is maintained on both sides
Access
OCPD shall be protected from physical damage by being installed in all but which of the following
Apparatuses
Service disconnecting means shall not be installed in which of the following locations
Bathrooms
A main bonding jumper has
Bus, Screw, Wire and no clip
Non-conductive ___ on equipment to be grounded shall be removed to ensure good electrical continuity unless fittings used are designed to make such removal unnecessary
Coatings
Main bonding jumpers shall be of ___ or other corrosion-resistant material
Copper
Three switches mounted to the same strap would count as ___ volume allowance for box fill
Double
Where exposed to the weather, raceways enclosing service-entrance conductors shall be listed for use in wet locations and arranged to __
Drain
Plug fuses of the ___ type shall be used only for replacement in existing installations where there is no evidence of overfusing or tampering
Edison base
Where the overcurrent device is rated over 800 amps, the ampacity of the conductors it protects shall be __the rating of the OCPD
Equal to or greater than
In walls, constructed of wood, boxes shall (be) ___ (with) the finished surface
Extend to
A surface extension shall be permitted to be made from a cover of a box where the cover is designed so it is unlikely to
Fall off
An additional service could be added to a building for ___ pumps
Fire
Insulated equipment grounding conductors shall have a continuous outer finish for identification that is
Green
The terminal for the connection of the wiring device to the equipment grounding conductor shall be identified by a ___ screw
Green
Where a screw is used as the only main bonding jumper, the screw shall have a ___ finish
Green
This is a conducting object through which a direct connection to the earth is established
Grounding electrode
Class___cartridge fuses of the renewable type shall only be permitted to be used for replacement in existing installations where there is no evidence of tampering or overfusing
H
Circuit breakers used as switches in high intensity discharge lighting circuits shall be marked
HID
Circuit breakers rated at 100 amps or less and 1000 volts or less shall have their ampere rating stamped into their
Handle
This is used to connect single pole breakers together for use on multi-wire branch circuits
Handle ties
If multiconductor cables are installed in parallel, the equipment grounding conductor___shall be connected in parallel
In each cable
All but which of the following is a cause of an overcurrent
Lightning
In general, only ___ floor boxes shall be used for receptacles located in floors
Listed
All but which of the following is one of the permitted methods for connecting a bonding jumper
Machine screws that engage one thread
All but which of the following is one of the permitted methods for connecting a grounding conductor?
Machine screws that engage one thread
Messenger wires for festoon lighting shall not be attached to all but which of the following
Mast
A wire enters a box through a conduit and exits through another conduit without being spliced or looped. The wire is counted ___ for conductor fill
Once
All but which of the following with electrical maintenance provided does not have to provide occupants with access to all service and feeder OCPD
One family dwelling
Service heads shall have conductors of different potential brought out through separately bushed
Openings
As defined by the NEC, a service drop is the conductors between the utility electric supply system and the service point
Overhead
As defined by the NEC, the service point is a connection between the facilities of the serving utility and the ___ wiring
Premises
In pull boxes having any dimensions over 6' all conductors shall __
Racked
Circuit breakers used as switches in 120v fluorescent lighting circuits shall be marked
SWD
All but which of the following is an approved means to protect service entrance cables from physical damage
Schedule 40 PVC
A fuse used as overcurrent protection shall be connected in___with each ungrounded conductor
Series
The NEC defines the main bonding jumper as the connection between the grounded circuit conductor and the equipment grounding at the ___
Service
These are the conductors and equipment for delivering electrical energy from the utility to the premises served
Service
Overhead service raceways shall be equipped with a ___ at the point of connection to overhead service conductors, listed for use in wet locations
Service head
Service entrance conductors ___ be permitted to be spliced
Shall
Supplementary overcurrent protection__be required to be readily accessible
Shall not
Connection of grounding and bonding equipment jumpers is permitted by all but which of the following
Solder
In general OCPDs shall not be located over___of a stairway
Steps
___Overcurrent protection used for luminaries shall not be substituted for the required branch circuit OCPD
Supplementary
In Wisconsin a metallic raceway installed in direct contact with ___ shall be augmented with a supplemental equipment grounding conductor
The earth
A conduit body (that is not a short radius conduit body) enclosing 6 AWG conductors shall have a cross sectional area not less than ___ the cross sectional area of the largest conduit that can be attached
Twice
Handhole enclosures shall be identified for use in ___ systems
Underground
In general enclosures for fuses shall be mounted
Vertically
Cartridge fuses are required by the NEC to be marked with all but which of the following
Wattage rating
Boxes installed in wet locations shall be listed for use in ___ locations
Wet
An overcurrent device such as a circuit breaker (not being used as a supplementary OCPD) shall not be located in a bathroom except for which of the following locations
YMCA shower
Fuses & circuit breakers shall be located so that persons will not be ___ by there operation
burned
Handhole enclosure covers shall have an identifying mark that identifies the function of the enclosure such as
electric
An additional service could be added to a building for ___ systems
emergency
Where conductors are ran in parallel and routed in multiple raceways and an equipment grounding conductor is used, it is required?
in each raceway
The screw shell of a ___ type fuseholder shall be connected to the load side of the circuit
plug
