05 NEC quiz 100 www.garyklinka.com
Instructions:
1. Print these pages.
2. Circle the correct answers
3. Use the 2005 NEC Code book.
4. Page down to the last page for the verification forms and mailing instructions.
1. Premises wiring must not be electrically connected
to a supply system unless the supply system contains, for any grounded
conductor of the interior system, a corresponding conductor that is ungrounded.
a) true
b) false
200.3
2. The application of distinctive marking at the
terminals during the process of installation must identify the grounded
conductor of ____ metal-sheathed cable.
a) armored
b) mineral-insulated
c) copper
d) aluminum
200.6(A)(1)
3. Grounded conductors larger
than 6 AWG must be identified by ____.
a) a continuous white or gray outer finish along their entire
length
b) three continuous white stripes along their entire length
c) distinctive white or gray tape or paint at terminations
d) a, b, or c
200.6(B)
4. Where grounded conductors
of different wiring systems are installed in the same raceway, cable, or
enclosure, each grounded conductor must be identified in a manner that makes it
possible to distinguish the grounded conductors for each system. This means of
identification must be ____.
a) permanently posted at each branch-circuit panelboard
b) posted inside each junction box where both system neutrals
are present
c) done using a listed labeling technique
d) all of
these
200.6(D)
5. A cable containing an
insulated conductor with a white outer finish can be used for single pole,
3-way or 4- way switch loops, if it is permanently reidentified by painting or
other effective means at its
termination, and at each location where the conductor is visible and
accessible.
a) true
b) false
200.7(C)(2)
6. Receptacles, polarized
attachment plugs and cord connectors for plugs and polarized plugs must have the
terminal intended of connection to the grounded conductor identified.
Identification must be by a metal or metal coating that is substantially ____
in color, or by the word white or the letter W located adjacent to the
identified terminal.
a) green
b) white
c) gray
d) b or c
200.10(B)(1)
7. No ____ can be attached to
any terminal or lead so as to reverse designated polarity.
a) grounded conductor
b) grounding conductor
c) ungrounded conductor
d) grounding connector
200.11
8. 120/208V or 480Y/227V,
3-phase, 4-wire, wye systems used to supply nonlinear loads such as personal
computers, energy-efficient electronic ballasts, electronic dimming, etc.,
cause distortion of the phase and neutral currents producing high, unwanted,
and potentially hazardous harmonic neutral currents. The Code cautions us that the system design for multiwire branch
circuits should allow for the possibility high harmonic neutral currents.
a) true
b) false
210.4(A)
FPN
9. When more than one nominal
voltage system exits in a building, each ungrounded system conductor must be
identified by system. The means of identification must be permanently posted at
each branch-circuit panelboard.
a) true
b)
false
210.5(C)
10. Where more than one
nominal voltage system exists in a building, each ____ conductor of a branch
circuit, where accessible, must be identified by system.
a) grounded
b) ungrounded
c) grounding
d)
all of these
210.5(C)
11. A branch-circuit voltage
that exceeds 277 volts-to-ground and does not exceed 600V between conductors is
used to wire the auxiliary equipment of electrical discharge lamps mounted on
poles. The minimum height of these luminaries must not be less than ____.
a) 31 ft
b) 15 ft
c) 18 ft
d) 22 ft
210.6(D)(1)(a)
12. Where two or more branch
circuits supply devices or equipment on the same yoke, a means to disconnect
simultaneously all ungrounded (hot) conductors that supply those devices or
equipment must be provided ____.
a) at the point where the
branch circuit originates
b) at the location of the
device or equipment
c) at the point where the
feeder originates
d) none of these
210.7(B)
13. All 15 and 20A, 125V
single-phase receptacles installed in bathrooms of ____ must have ground-fault
circuit-interrupter (GFCI) protection for personnel.
a) guest rooms in
hotels/motels
b) dwelling units
c) office buildings
d) all of
these
210.8(A)(1) and (B)(1)
14. GFCI protection is
required for all 150 and 20A, 125V single-phase receptacles in accessory
buildings that have floor located at or below grade level not intended as ___
and limited to storage areas, work areas, or similar use.
a) habitable
b) finished
c) a or b
d) none of these
210.8(A)(2)
15. GFCI protection for
personnel is required for fixed electric snow melting or deicing equipment
receptacles that are not readily accessible and are supplied by a dedicated
branch circuit.
a) true
b) false
210.8(A)(3) Ex
16. GFCI protection for
personnel is required for all 150 and 20A, 125V single phase receptacles
installed to serve the countertop surfaces in dwelling unit kitchens.
a) true
b) false
210.8(A)(6)
17. All 15 and 20A, 125V
single-phase receptacles installed in dwelling unit boathouses must have GFCI
protection for personnel.
a) true
b) false
210.8(A)(8)
18. GFCI protection for
personnel is required for all 15 and 20A, 125V single-phase receptacles
installed on rooftops in other than dwelling units, including those for fixed
electric snow melting or deicing equipment.
a) true
b) false
210.8(B)(3) and (4) Ex
19. In
locations other than dwelling units, a kitchen ____.
a) is required to have GFCI
protection on all 15 and 20A, 125V single-phase receptacles
b) includes a sink
c) includes permanent
facilities for food preparation and cooking
d) all of
these
210.8(B)(2)
20. Ground-fault circuit-interrupter
protection for personnel must be provided for outlets that supply boat hoists
installed in dwelling unit locations and supplied by a 15 or 20A, 120V branch
circuit.
a) true
b) false
210.8(C)
21. Two or more ____, 120V
small-appliance branch circuits must be provided to supply power for the
receptacle outlets in the dwelling unit kitchen, dining room, breakfast room,
pantry, or similar dining areas.
a) 15A
b) 20A
c) 30A
d) either 20A or 30A
210.11(C)(1)
22. An individual 20A circuit
is permitted to supply power to a single dwelling unit bathroom for receptacle
outlet(s) and other equipment within the same bathroom.
a) true
b) false
210.11(C)(3) Ex
23. All 15 or 20A, 120V branch circuits that supply outlets in dwelling unit
bedrooms must be AFCI protected by a listed arc-fault circuit interrupter of
the combination type after January 1, 2008.
a) true
b) false
210.12(B)
24. ________ provided with
permanent provisions for cooking must have branch circuits and outlets
installed to meet the rules for dwelling units.
a) Guest rooms
b) Guest suites
c) Commercial kitchens
d) a and b
210.18
25. The recommended maximum
total voltage drop on both the feeder and branch-circuit conductors combined is
____ percent.
a) 3
b) 2
c) 5
d) 4.6
210.19(A)(1) FPN No.4, and 215.2(A)(4) FPN No.2
26. Where a branch circuit supplies
continuous loads, or any combination of continuous and non-continuous loads,
the rating of the overcurrent device must not be less than the non-continuous
load plus 125 percent of the continuous load.
a) true
b) false
210.20(A)
27. When connected to a
branch circuit supplying ____ or more receptacles or outlets, a receptacle must
not supply a total cord-plug connected load in excess of the maximum specified
in Table 210.21(B)(2).
a) two
b) three
c) four
d)five
210.21 (B) (2)
28. If a 20A branch circuit
supplies multiple 125V receptacles, the receptacles must have an ampere rating
of no less than ____.
a) 10A
b) 15A
c) 20A
d) 30A
210.21(B)(3) and
Table 210.21(B)(3)
29. The total rating of utilization
equipment fastened in place, other than luminaries, must not exceed ____
percent of the branch circuit ampere rating where the circuit also supplies
receptacles for cord-and-plug connected equipment not fastened in place and/or
lighting units
a)
50
b) 75
c) 100
d) 125
210.23(A)(2)
30. ____ in dwelling units
must supply only loads within that dwelling unit or loads associate3d only with
that dwelling unit.
a)service-entrance
conductors
b) Ground-fault protection
c) Branch circuits
d) none of these
210.25
31. Receptacle outlets
installed for a specific appliance in a dwelling unit, such as a clothes
washer, dryer, range, or refrigerator, must be within ____ of the intended
location of the appliance.
a) sight
b) 6 ft
c) 3 ft
d) readily accessible, no
maximum distance
210.50(C)
32. When applying the general
provisions for receptacle spacing to the rooms of a dwelling unit, which
require receptacles in the wall space, no point along the floor line any wall
space of a dwelling unit may be more that ____ from an outlet.
a) 12 ft
b) 10 ft
c) 8 ft
d) 6 ft
210.52(A)(1)
33. In dwelling unit, each
wall space of ____ or wider requires a receptacle.
a)
2 ft
b)
3 ft
c)
4 ft
d)
5 ft
210.52(A)(92)
34. In dwelling units,
outdoor receptacles can be connected to one of the 20A small-appliance branch
circuits.
a) true
b) false
210.52(B)(1) and (2)
35. A receptacle connected to one of the
small-appliance branch circuits can be used to supply an electric clock.
a) true
b) false
210.52(B)(2) Ex 1
36. Receptacles installed in
a kitchen to serve countertop surfaces must be supplied by not fewer than ____
small-appliance branch circuits.
a) one
b) two
c) three
d) no minimum
210.52(B)(3)
37. A receptacle outlet must
be installed at each wall counter space that is 12 in. or wider so that no
point along the wall line is more than ____, measured horizontally, from a
receptacle outlet in that space.
a) 10 in
b) 12 in
c) 16 in
d) 24 in
210.52
(C)(1)
38. At least one receptacle
outlet must be installed at each peninsular countertop or island not containing
a sink or range top, having a long dimension of ____ in, or greater, and a
short dimension of ____ in. or greater.
a) 12, 24
b) 24, 12
c) 24, 48
d) 48, 24
210.52(C)(2) and
(C)(3)
39. For the purpose of
determining the placement of receptacles in a dwelling unit kitchen, a(n) ____ countertop is measured from the connecting edge.
a) island
b) usable
c) peninsular
d) cooking
210.52(C)(3)
40. Kitchen and dinging room countertop
receptacle outlets in dwelling units must be installed above the countertop
surface, and not more than ____ above the countertop.
a) 12 in
b) 20 in
c) 24 in
d) none of these
210.52(C)(5)
41. The required receptacle
for a dwelling unit countertop surface can be mounted a maximum height of ____
above a dwelling unit kitchen counter surface.
a) 10 in
b) 12 in
c) 18 in
d) 20 in
210.52(C)(5)
42. In dwelling units, the
required wall receptacle outlet is allowed to be installed on the side or front
of the basin cabinet if no lower than ____ below the countertop.
a) 12 in
b) 118 in
c) 24 in
d) 36 in
210.52(D) Ex
43. At least one receptacle
outlet accessible from grade level and not more than ____ above grade must be
installed at each dwelling unit of a multifamily dwelling located at grade
level and provided with individual exterior entrance/egress.
a) 3 ft
b) 6 ½ ft
c) 8 ft
d)
24 in
210.52(E)
44. For one family dwelling,
at least one receptacle outlet is required in each ______.
a)
basement
b) attached garage
c) detached garage with electric power
d) all of
these
210.52(G)
45. Hallways in dwelling
units that are ____ long or longer require a receptacle outlet.
a) 12 ft
b) 10 ft
c) 8 ft
d) 15 ft
210.52(H)
46. Guest rooms or guest suites provided with
permanent provisions for ____ must have receptacle outlets installed in
accordance with all of the applicable requirements for a dwelling unit in
accordance with 210.52
a) whirlpool tubs
b) bathing
c) cooking
d) internet access
210.60(A)
47. Then number of receptacle
outlets for guest rooms in hotels and motels must not be less than that
required for a dwelling unit, in accordance with 210.52(A). These receptacles
can be located to be convenient for permanent furniture layout, but lesson
fewer than ____ receptacle outlets must be readily accessible.
a) 4
b) 2
c) 6
d) 1
210.60(B)
48. A 15 or 20A, 125V, single-phase receptacle
outlet must be installed at an accessible location for the servicing of
heating, air-conditioning, and refrigeration equipment.
a) 10 ft
b) 15 ft
c)20 ft
d) 25 ft
210.63
49. In a dwelling unit, at least ____ wall
switch-controlled lighting outlet(s) must be installed in every dwelling unit
habitable room and bathroom.
a) one
b) three
c) six
d) none of these
210.70(A)(1)
50. In ____ rooms other than
kitchens and bathrooms of dwelling units, one or more receptacles controlled by
a wall switch are permitted in lieu of lighting outlets.
a) habitable
b) finished
c) all
d) a and b
210.70(A)(1) Ex 1
51. In a dwelling unit,
illumination from a lighting outlet must be provided at the exterior side of
each outdoor entrance or exit that has grade-level access.
a) true
b) false
210.70(A)(2)(b)
52. Where a lighting
outlet(s) is installed for interior stairways, there must be a wall switch at
each floor landing that includes an entryway where the stairway between floor
levels has four risers or more.
a)
true
b)
false
210.70(A)(2)(c)
53. In a dwelling unit, at
least one lighting outlet ___________ located at the point of entry to the
attic, under floor space, utility room, and the basement must be installed
where these spaces are used for storage or contain equipment requiring
servicing.
a) that is unswitched and
b)
controlled by a wall switch
c)
containing a switch
d)
b or c
210.70(A)(3)
54. For other than dwelling
units, a lighting outlet containing a switch or controlled by a wall switch is
required near equipment requiring servicing in attics or underfloor spaces, and
at least on point of control must be located at the point of entrance to the
attic or underfloor space.
a) true
b) false
210.70(C)
55. The feeder conductor
ampacity must not be less than that of the service-entrance conductors where
the feeder conductors carry the total load supplied by service-entrance
conductors with an ampacity of ____ or less.
a) 100A
b) 60A
c) 55A
d) 30A
215.2(A)(2)
56. Where installed in a metal raceway, all feeder
conduct ors using a common grounded conductor must be _____.
a) insulated for 600V
b) 60A
c) 55A
d) 30A
215.4(B)
57. When a feeder supplies
________ in which equipment grounding conductors are required, the feeder must
include or provide a grounding means to which the equipment grounding conductors
of the branch circuits must be connected.
a) equipment disconnecting means
b) electrical systems
c) branch circuits
d)
electric-discharge lighting equipment
215.6
58. Ground-fault protection of
equipment is not required at the feeder disconnect if ground-fault protection
of equipment is provided on the ______ side of the feeder.
a) load
b) supply
c) service
d) none of these
215.10
Ex 3
59. When computations in
Article 220 result in a fraction of an ampere that is less than ________, such
fractions can be dropped.
a) 0.49
b) 0.50
c) 0.51
d) none of these
220.5(B)
60. When determining the load
for luminaires for branch circuits, the load must be based on the __________.
a) wattage rating of the luminaire socket
b) maximum VA rating of the equipment and lamps
c) wattage rating of the lamps
d) none of these
220.14(D)
61. For other than dwelling
occupancies, banks, or office buildings, each receptacle outlet must be
computed at not less than _____ VA for each single or each multiple receptacle
on one yoke.
a) 1,500
b) 180
c) 20
d) 3
220.14(I)
62. The 3 VA per square foot
general lighting load for dwelling units includes general use receptacles and
lighting outlets and no additional load calculations are required for these.
a) true
b) false
220.14(J)
63. The minimum feeder load
for show-window lighting is _____ per-linear- foot.
a) 400 VA
b) 200 VA
c) 300 VA
d) 180 VA
220.43(A)
64. Receptacle loads fro
nondwelling units, computed in accordance with 220.14(H) and (I), are permitted
to be______.
a) added to the lighting loads and made subject to the demand
factors of Table 220.42
b) made subject to the demand factors of Table 220.44
c) made subject to the lighting demand loads of Table 220.12
d) a or b
220.44
65. The feeder and service
load for fixed electric space heating must be computed at _________ percent of
the total connected load.
a) 125
b) 100
c) 80
d) 200
220.51
66. When sizing a feeder for
the fixed appliance loads in dwelling units, a demand factor of 75 percent of
the total nameplate ratings can be applied if there are _____ or more
appliances fastened in place on the same feeder (not including washer, dryer,
heating, or air conditioning.)
a)
two
b) three
c)
four
d) five
220.53
67. The load for electric clothes
dryers in a dwelling unit must be ______ watts or the nameplate rating,
whichever is larger, per dryer.
a) 1,500
b) 4,500
c) 5,000
d) 8,000
220.54
68. The feeder demand load
for four 6kW cooktops is _____ kW
a) 17
b) 4
c) 12
d) 24
Table
220.55, Note 3
69. For identically sized
ranges rated more than 12 kW but not more than 27 kW, the maximum demand in
column C must be increased by ________ percent of the column C value for each
additional kilowatt of rating, or major fraction thereof. by
which the rating of the individual ranges exceeds 12 kW.
a) 125
b) 10
c) 5
d) 80
Table
220.55 Note 1
70. The feeder demand load
for ranges individually rated more than 8 ¾ kW and of different ratings, but
none exceeding 27 kW, is calculated by adding all of the ranges together and
dividing by the total number of ranges to find an average value. The column C value for the
number of ranges in the increased by _______ percent for each kW or major
fraction that the average value exceeds 12 kW.
a) 125
b) 10
c) 5
d) 80
Table
220.55 Note 2
71. Table 220.56 may be
app0lied to compute the load for thermostatically controlled or intermittently
used _____ and other kitchen equipment in a commercial kitchen.
a) commercial electric cooking equipment
b) dishwasher booster heaters
c) water heaters
d) all of
these
220.56
72. Where it is unlikely that
two or more noncoincident loads will be in use simultaneously, it is permissible
to use only the _____ loads on at any given time in computing the total load to
a feeder.
a) smaller of the
b) largest of the
c) difference between
the
d) none of these
220.60
73. There must be no reduction
in the size of the grounded conductor on _____ type loads.
a) dwelling unit
b) hospital
c) nonlinear
d) motel
220.61(C)(2)
74. Feeder and service-entrance conductors with demand
loads determined by the use of 220.82 are permitted to have the _______ load
determined by 220.61.
a)
feeder
b)circuit
c)
neutral
d) none of these
220.82(A)
75. A demand factor of
_________ percent applies to a multifamily dwelling with ten units if the
optional calculation method is used.
a) 75
b) 60
c) 50
d) 43
220.84 and Table 220.84
76. The calculated load to which
the demand factors of Table 220.84 apply must include the _____ rating of all
appliances that are fastened in place, permanently connected, or located to be
on a specific circuit. These include
ranges, wall-mounted ovens, counter—mounted cooking units, clothes dryers,
water heaters, and space heaters.
a) calculated
b) nameplate
c) circuit
d) overcurrent protection
220.84
(C)(3)
77. Feeder conductors for new
restaurants are not required to be of ________ ampacity than the
service-entrance conductors.
a) greater
b) lesser
c) equal
d) none of these
220.88
78. When a farm dwelling has
electric heat and the farm operation has electric grain-drying systems, Part
_____ of Article 220 cannot be used to compute the dwelling load where the
dwelling and farm load are supplied by a common service.
a) I
b) II
c)III
d) IV
220.102(A)
79. Open individual
conductors must not be smaller than ______ AWG copper for spans up to 50 ft in
length and _____ AWG copper for a longer span, unless supported by a messenger
wire.
a) 10,8
b) 6,8
c) 6,6
d) all of
these
225.6(A)(1)
80. Where a mast is used for
overhead conductor support of outside branch circuits and feeders, it must have
adequate mechanical strength, or braces or guy wires to support it, to
withstand the strain caused by the conductors.
Only ______ conductors can be attached to the mast.
a) communications
b) fiber optic
c) feeder or branch
circuit
d) all of
these
225.17
81. The minimum clearance for
overhead conductors not exceeding 600V that pass over commercial areas subject
to truck traffic is ___________.
a) 10 ft
b) 12 ft
c) 15 ft
d) 18 ft
225.18(4)
82. If a set of 120/240V
overhead conductors terminates at a through-the-roof raceway or approved
support, with less than 6 ft of these conductors passing over the roof
overhang, the minimum clearance above the roof for these conductors
is_________.
a) 12 in.
b) 18 in.
c) 2 ft
d) 5 ft
225.19(A) Ex 3
83. Overhead conductors to a
building must maintain a vertical clearance of final spans above,
or within _________ measured horizontally from the plate forms, projections, or
surfaces from which they might be reached.
a) 3 ft
b) 6 ft
c) 8ft
d) 10 ft
225.19(D)(2)
84. Raceways on exterior
surfaces of buildings or other structures must be arranged to drain, and in
_____ locations must be raintight.
a) damp
b) wet
c) dry
d) all of
these
225.22
85. A building or structure
must be supplied by a maximum of _____ feeders(s) or branch circuit(s).
a) one
b) two
c)
three
d) as many as desired
225.30
86. The building
disconnecting means must be installed at a(n)
_________ location.
a) accessible
b) readily accessible
c) outdoor
d) indoor
225.32
87. There must be no more
than ________ disconnects installed for each electric supply.
a) two
b) four
c)
six
d) none of these
225.33A
88. The one or more
additional disconnecting means for fire pumps or for emergency, legally
required standby or optional standby systems as permitted by 225.30,
must be installed sufficiently remote from the one to six disconnecting means
for normal supply to minimize the possibility of ________ interruption of
supply.
a)
accidental
b) intermittent
c) simultaneous
d) prolonged
225.34(B)
89. In a multiple-occupancy
building where electrical maintenance is provided by the building management
under continuous building management supervision, the building disconnecting
means supplying more than one occupancy can be
accessible to authorized _____ only.
a) inspectors
b) tenants
c) management personnel
d) none of these
225.35
Ex
90. The building or structure disconnecting means must
plainly indicate whether it is in the __________ position.
a) open or closed
b) correct
c) up or down
d) none of these
225.38(D)
91. For installations
consisting of not more than two 2-2ire branch circuits, the building
disconnecting means must have a rating of not less than _____.
a) 15A
b) 20A
c) 25A
d) 30A
225.39(B)
92. Additional services must
be permitted for a single building or other structure sufficiently large to
make two or more services necessary if permitted by _______.
a) architects
b) special permission
c) written authorization
d) master electrician
230.2(B)(2)
93. Where a building or structure
is supplied by more than one service, or a combination of branch circuits,
feeders and services a permanent plaque or directory must be installed at each
service disconnect location denoting all other _______ supplying that building
or structure and the area served by each.
a) services
b) feeders
c) branch circuits
d) all of
these
230.2(E)
94. Conductors other than
service conductors must not be installed in the same ________.
a) service raceway
b) service cable
c) enclosure
d) a or b
230.7
95. Service conductors
installed as unjacketed multiconductor cable must have a minimum clearance of
_____ from windows that are designed to be opened, doors porches, stairs, fire
escapes, or similar locations.
a) 3 ft
b) 4 ft
c) 6 ft
d) 10 ft
230.9(A)
96. ________________ must not
be installed beneath openings through which materials may be moved, such as openings
in farm and commercial buildings, and must not be installed where they will
obstruct entrance to these building openings.
a)
Overcurrent protection devices
b)
overhead-service conductors
c)
Grounding conductors
d)
Wiring systems
230.9(C)
97. Service-drop conductors must
have_____________.
a) sufficient ampacity to carry the current for the load
b) adequate mechanical strength
c) a or b
d) a and b
230.23(A)
98. Service drops installed over
roofs must have a vertical clearance of _____ above the roof surface.
a) 8 ft
b) 12 ft
c) 15 ft
d) 3 ft
230.24(A)
99. The requirement for
maintaining a 3 ft vertical clearance from the edge of the roof does not apply
to the final conductor span where the service drop is attached to _________.
a) a service pole
b) the side of a
building
c) an antenna
d) the base of a building
230.24(A) Ex 4
100. The minimum clearance
for service drops not exceeding 600V that pass over commercial areas subject to
truck traffic is __________________.
a) 10 ft
b) 12 ft
c) 15 ft
d) 18 ft
230.24(B)(4)
To obtain your Continuing Education Credits follow the below instructions.
Send by mail
-------------------------------Educational Course Attendance Verification Form -----------------------------
Attendee’s Name Date
Address
Credential Number Phone#
Course
Title and Name 05
Nec Quiz
100 Course ID#
8540
List the name of each credential held by attendee
Credited____3hrs________
Email address Fax#
-------------------------------------------------------------------------------------------------------------------------
To be completed by Gary Klinka www.garyklinka.com My credential link #70172
Attendee passed the course with a greater than 70% score on date