Mason
Service lateral conductors shall not be smaller than ..... AWG copper or AWG aluminum or copper clad aluminum
(10,8), (6,4) (4,2) Whichever one is not listed is the correct answer
At least _____ receptacle outlets shall be installed within ___ inches of the top of a show window for each ____ linear ft. or major fraction thereof.
(2, 12, 10) (1, 24, 10) (2, 12, 12) Whichever one is not listed is the correct answer
The service disconnecting means shall consist of not more than ..... switches or circuit breakers, or a combination of not more than ... switches and sets of circuit breakers mounted in a single enclosure, in a group of separate enclosures, or in or on a switchboard.
(5,5) (4,4) (2,2) Whichever one is not listed is the correct answer
Overhead service drop conductors shall not be smaller than ........ AWG copper or ...... AWG aluminum or copper clad aluminum
(6,4) (10,8) (4,3) Whichever one is not listed is the correct answer
The service disconnecting means shall be plainly marked to identify whether it is in the ........ or ......... position
(center, open) (open, open) (closed closed) Whichever one is not listed is the correct answer
Where calculations result in a fraction of an ampere that is less than ____ such fractions shall be permitted to be dropped.
0.5
In a dwelling unit kitchen, a peninsular countertop is 2-1/3 ft wide and 7 ft long when measured from the connecting edge. At least..... receptacle outlets is/are required to be installed at this peninsular counter space
1
Service conductors installed as open conductors or multiconductor cable without an overall outer jacket shall have a clearance of not less than ..... ft from windows that are designed to be opened, doors, porches, balconies, ladders, stairs, fire escapes, or similar locations.
1, 2, 4 Whichever one is not listed is the correct answer
What size THWN copper conductors are required for a branch circuit having a 16 amp continuous load and an 8 amp noncontinuous load?
10 AWG cu
What is the demand load for a 12 kW range?
10, 12, 16 Whichever one is not listed is the correct answer
Receptacle outlets mounted below a countertop space shall not be located where the countertop extends more than ____ inches beyond its support base.
10, 12, 4, Whichever one is not listed is the correct answer
Coductors shall have a vertical clearance of not less than .... ft above the roof surface
10, 6, 7 Whichever one is not listed is the correct answer
Demand factors for five electric clothes dryers shall be calculated at ...... percent
100
What size overcurrent protection device is required for a branch circuit with a continuous loa of 80 amps with 75 degrees C terminals and 3 AWG cu THWN conductors
100 amp
For installations consisting of not more than 2-wire branch circuits, the service disconnecting means shall have a rating of not less than ..... amperes
100, 20, 60 Whichever one is not listed is the correct answer
The feeder conductor ampacity shall not be less than that of the service conductors where the feeder conductors carry the total load supplied by the service conductors with an ampacity of ..... amperes or less
100, 75, 65 Whichever one is not listed is the correct answer
Overhead conductors that are installed to supply only limited loads of a single branch circuit such as small polyphase power or controlled water heaters shall not be smaller than ..... AWG hard drawn copper
12
Service drop conductors of 240 volts to ground crossing residential property or driveways shall have a clearance of ..... ft from finished grade
12
The point of attachment of service drop conductors to a building shall be at least ...... ft above finished grade
12, 16, 18 Whichever one is not listed is the correct answer
In the kitchen of a dwelling unit, receptacle outlets for counter spaces shall be located a maximum of ...... inches above the countertop
12, 24, 10 Whichever one is not listed is the correct answer
Service entrance cables shall be supported by straps or other approved means within..... inches of every service head, gooseneck, or connection to a raceway or enclosure and at intervals not exceeding ...... inches.
12,30
Where an air conditioning unit is located on the rooftop of an office building, a receptacle outlet shall be located on the roof on the same level and within.... ft of the air conditioning unit
12,50, 6 Whichever one is not listed is the correct answer
For show window lighting, a load of not less than .... volt ampere/linear foot shall be included for a show window, measured horizontally along its base
120, 180, 300 Whichever one is not listed is the correct answer
Overhead conductors for festoon lighting shall not be smaller than ..... AWG unless the conductors are supported by messenger wires
14, 10, 8 Whichever one is not listed is the correct answer
Service drop conductors crossing over public streets that are subject to truck traffic shall have a clearance of ..... ft from finished grade
15
To calculate the load on a feeder using the standard calculation method, a fixed electric space heating load shall be calculated at ...... percent of the total connected load.
150, 80, 125 Whichever one is not listed is the correct answer
For calculating the service conductor size for a dwelling, at least ____ volt amperes shall be included for each two-wire laundry branch circuit.
1500
In a dwelling unit, each small appliance branch circuit shall be calculated at ...... volt-amperes
1500
Receptacle outlets shall be located on or above, but not more than ..... inches above the countertop
16, 10, 12 Whichever one is not listed is the correct answer
The largest motor load shall be added to the other loads at ...... percent of the motor's full load current rating
175, 160, 150 Whichever one is not listed is the correct answer
Service drop conductors with a voltage of 240 volts to ground shall have a clearance of ........ft over a commercial driveway used by commercial delivery trucks
18
What is the VA rating for 150 general purpose receptacle outlets to cord and plug connected loads used at noncontinuous operation?
18,250 VA
Where calculating the general lighting for an office building a unit load of ....... volt-amperes or ....... volt ampere per square fit, whichever is larger, shall be included for general purpose receptacle outlets when the number of outlets to be installed is unknown.
180, 3-1/2
For the calculation of a feeder supplying receptacle loads for a store the load for each receptacle outlet shall be _______ volt amperes in accordance with 220.14H and(I) and shall be permitted to be made subject to the demand factors given int Table 220.42 of the first 10 kVA or less at 100 percent and any remainder over 10 kVA at ____ percent
180, 50
For calculating the load on a branch circuit, sign and outline lighting shall be calculated at ..... volt amperes
1800, 1000, 1500 Whichever one is not listed is the correct answer
In the kitchen of a dwelling unit, an island countertop space is 90 in long with a width of 28 in and it has a 30 in wide range installed in the center, evenly dividing the space on each side of the range. How many receptacle outlets is/are required for the island?
2
Where calculating the general lighting load for a restaurant, a unit load of ..... volt amperes shall be used
2
In a dwelling unit bathroom, the receptacle outlets shall be supplied by at least one:
20 ampere branch circuit that is permitted to also supply outdoor outlets, 15 ampere branch circuit that is permitted to also supply outdoor outlets, 15 ampere branch circuit that supplies no other outlets Whichever one is not listed is the correct answer
Hallways of ..... ft or more in lenth shall have at least one receptacle outlet in a dwelling unit
20, 30, 15 Whichever one is not listed is the correct answer
In the living room of a dwelling, a wall space of at least ....... in. or more in width shall have a receptacle outlet installed
24
In the kitchen of a dwelling unit, a receptacle outlet shall be installed at each wall counter space that is at least ..... in or wider
24, 18, 10 Whichever one is not listed is the correct answer
For a store, at least one receptacle shall be installed above a show window or each ___ linear ft or major fraction thereof of show window
25, 10, 18 Whichever one is not listed is the correct answer
For calculating the load on a branch circuit, an outlet for a heavy duty lamp holder not used for general illumination shall be ..... volt amperes
250, 750, 660 Whichever one is not listed is the correct answer
Where calculating the general lighting and receptacle load for a dwelling unit, a unit load of ..... volt amperes shall be used
3
In a dwelling unit, a luminaire installed over a stairway shall be controlled by a wall switch at each floor level or entryway where the difference between floor levels is ... risers (steps) or more
3, 5, 4 Whichever one is not listed is the correct answer
Conductors on poles shall have seperation of not less than ...... ft where not placed on racks or brackets
3, 6, 2 Whichever one is not listed is the correct answer
In dwelling units, hallways of ..... ft or more in length shall have at least one receptacle outlet. The hall length shall be considered the length along the centerline of the hall without passing through a doorway
3, 6, 20 Whichever one is not listed is the correct answer
What size THWN copper conductors are required to supply a feeder with a continuous load of 140 amps and a noncontinuous load of 50 amps?
3/0 AWG cu, 2/0 AWG cu, 250 KCMIL cu Whichever one is not listed is the correct answer
Where service conductors pass over a flat roof, the vertical clearance required above the roof level shall be maintained for a distance of at least ..... ft in all directions from the edge of the roof
4, 6, 8, Whichever one is not listed is the correct answer
What size THWN copper conductors are required for a feeder having a 150 amp continuous load and a 20 amp noncontinuous load?
4/0 AWG cu.
In all festoon lighting spans exceeding ____ ft, messenger wire shall support the conductors
40
where determining the load, electric clothes dryers shall be ...... watts or the nameplate rating, whichever is larger for each dryer supplied
4000, 8000 Whichever one is not listed is the correct answer
Where a building with a flat roof is supplied by a 240 volt service drop passing 6 ft horizontally above the roof overhand and terminated through the roof raceway, the service drop conductors shall have a clearance from the roof of at least .... inches
48, 24, 36 Whichever one is not listed is the correct answer
At least one wall receptacle outlet shall be installed in the bathroom within ....... inches of the outside edge of the basin in a dwelling unit
48, 42, 30 Whichever one is not listed is the correct answer
Where applying demand factors for non-dwelling receptacle leads, the first 10 kVA is calculated 100 percent and the remainder is calculated at ..... volt amperes
50
For feeder or service calculations, four or more fixed appliances fastened in place shall have a demand factor of .... percent applied
50, 70, 60 Whichever one is not listed is the correct answer
What is the load in VA for the following fixed appliances? 1000 VA compactor 1200 Va disposal 1600 VA dishwasher 1200 VA microwave 2600 VA water pump?
5700 VA
In a dwelling unit, receptacle outlets installed for a specific appliance shall be installed within at least ..... ft of the intended location of the appliance
6
In dwellings, a floor outlet shall be permitted to be countered as part of the required number of receptacle outlets where located a maximum of ...... inches from the wall.
6, 12, 24 Whichever one is not listed is the correct answer
In dwelling units, hallways of....... ft or more in length shall have at least on receptacle outlet, the hall length shall be considered the length along the centerline of the hall without passing through a doorway
6, 3, 20 Whichever one is not listed is the correct answer
For a one family dwelling, the service disconnecting means shall have a rating of not less than ____ amperes, three-wire.
60, 150, 200 Whichever one is not listed is the correct answer
Service entrance conductors for a one family dwelling shall have a disconnecting means with a rating of not less than ..... amperes, three wire.
60, 30, 125 Whichever one is not listed is the correct answer
Ground fault protection of equipment shall be provided for solidly grounded wye electrical services of more than 150 volts to ground, but not exceeding....... volts phased to phase for each service disconnect rated ....... amperes or more.
600, 1000
A school with 12 kithcen appliances has a feeder demand factor of .... percent applied
65
Determine the general lighting and receptacle loads and the small appliance and laundry loads for the following: 3000 square ft dwelling 2 small appliance circuits 1 laundry circuit
6675 VA
Open individual conductors shall not be smaller than 10 AWG copper for 600 volts, nominal or less, for spans up to ..... ft in length
75, 40, 25 Whichever one is not listed is the correct answer
The outdoor outlets for a dwelling that are required to be accessible at grade level shall be installed a maximum of _____ ft above grade
8, 6, 5 1/2 Whichever one is not listed is the correct answer
Ground fault protection of equipment shall be provided for a feeder disconnect rated ........ amperes or more in a solidly grounded wye system with greater than 150 volts to ground, but not exceeding 600 volts phase to phase unless ground fault protection is provided on the supply side of the feeder or on the load side of any transformer supplying the feeder.
800, 1600, 1200 Whichever one is not listed is the correct answer
In the family room of a dwelling, which of the following is not included in the measurement of wall space for required spacing of receptacle outlets
A sliding panel in an exterior door
In a dwelling unit kitchen, the two or more small appliance branch circuits installed to serve countertop surfaces shall be permitted to serve which of the following cord and plug connected appliances
Supplemental electrical equipment for gas fired range
if the service disconnecting means is located inside the building it shall be located ........ entrance of the service conductors
a maximum of 10ft, maximum of 25 ft, maximum of 15 ft Whichever one is not listed is the correct answer
In a dwelling unit, a separate circuit with no other outlets or loads on the same circuit is required for all of the following locations or loads except:
a refrigerator supplied by 20 ampere circuit
In a multiple occupancy building where electrical maintenance is not provided by the building management, the service disconnect for each occupancy shall be
accessible only to building management personnel, located outside the building, located inside each occupancy Whichever one is not listed is the correct answer
For calculating a feeder load for a two family dwelling the demand factor permitted to be applied to the nameplate rating load of four or more appliances would apply to all of the following except
clothes dryers
In which of the following rooms of a dwelling would the required lighting outlet be permitted to be a wall switched controlled receptacle
dining room
Receptacle outlets shall be spaced a maximum of 12 ft apart in all of the following rooms or areas of dwellings, except the....
dining room, living room, kitchen Whichever one is not listed is the correct answer
In a multiple occupancy building .... shall have access to the occupants service disconnecting means
each occupant
....... conductors supplying a building or other structure shall not pass through the interior of another building or structure
emergency, feeder, branch circuit Whichever one is not listed is the correct answer
_________ conductors supplying a building or structure shall not pass through the inferior of another building or structure
emergency, feeder, branch circuit Whichever one is not listed is the correct answer
Up to three sets of 3-wire feeders or two sets of 4 wire or 5 wire feeders shall be permitted to utilize an ...... neutral
grounded, ungrounded, super Whichever one is not listed is the correct answer
Overhead service conductors run above the top level of a window shall:
have a maximum voltage of 150 volts to ground, have a clearance of at least 3 ft from the window, is enclosed in a cable or raceway Whichever one is not listed is the correct answer
In a dwelling unit kitchen, the small appliance branch circuits that supply countertop receptacles shall not be permitted to supply receptacles
in a pantry, in a dining room, for refrigeration equipment Whichever one is not listed is the correct answer
A 125 volt, single phase, 15 or 20 ampere receptacle outlet shall be installed at an ......... location for the servicing of air conditioning equipment
inaccessible, adjacent, readily accessible Whichever one is not listed is the correct answer
Service conductors shall be permitted to pass through the interior of another building such as through the crawlspace of a multifamily dwelling, where they are:
installed in a raceway that is encased in concrete or brick at least two inches thick
For dwelling units, a branch circuit supplying .... receptacle outlets shall be permitted to supply receptacles in an attached garage
kitchen small appliance, bathroom, laundry room Whichever one is not listed is the correct answer
A branch circuit in a multifamily dwelling that supplies outdoor lighting in a common area shall:
not be supplied from a panelboard in an individual dwelling unit or tenant space
In a dwelling at least.... branch circuits shall be provided for the small appliance circuits
one 15 amperes, two 15 amperes, one 20 amperes Whichever one is not listed is the correct answer
In a dwelling unit, a lighting outlet being controlled by an occupancy sensor is
permitted if a wall switch or manual override is also installed at the customary wall switch location
In a dwelling unit, the receptacle outlet provided for the clothes washer shall be
permitted to be supplied from a general purpose 15 ampere branch circuit, required to be supplied from a general purpose 2 ampere branch circuit, permitted to be supplied from an individual 15 ampere branch circuit Whichever one is not listed is the correct answer
In a dwelling unit, the receptacle outlet for the refrigerator shall be
permitted to be supplied from an individual 16 branch circuit
A cord connector that is supported by a permanently installed cord pendant shall be considered an
power, individual, lighting Whichever one is not listed is the correct answer
A cord connector that is supported by a permanently installed cord pendant shall be considered an ..... outlet
power, individual, lighting Whichever one is not listed is the correct answer
The National Electrical Code requires the service disconnecting means to be installed at an:
readily accessible location either outside the building or inside the building nearest the point of entrance of the service conductors
Service lateral conductors exposed to physical damage can be protected by:
schedule 80 PVC conduit, rigid metal conduit, intermediate metal conduit Whichever one is not listed is the correct answer
Each service disconnecting means shall be permanently marked to identify it as a...... disconnecting means
service
In a dwelling unit, a receptacle outlet that is factory installed in a listed permanently installed baseboard heater if:
the outlet is connected to the heater circuit, the heater circuit is a maximum of 120 volts, the baseboard heater is 6 ft or more in length, Whichever one is not listed is the correct answer
At least..... receptacle outlets shall be installed for the laundry in a dwelling unit
two, four, three Whichever one is not listed is the correct answer
For a dwelling unit, a ... in a ........ shall not be considered as an outdoor entrance or exit and is not required to have a lighting outlet.
vehicle door, garage
For a dwelling unit, a ____ in a ____ shall not be considered as an outdoor entrance or exit and is not required to have a lighting outlet.
vehicle door, garage
For a commercial occupancy the National Electrical Code required receptacle outlets to be installed
wherever flexible cords with attachment plugs are used
