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05 changes-5
5 Hours of Credit
Article 320 Armored Cable: Type AC
Type AC cable must be supported
and secured at intervals not exceeding 41/2 ft and the cable must be
secured within _____ of every outlet box, cabinet, conduit body, or other
armored cable termination.
(a) 4 in.
(b) 8 in.
(c) 9 in.
(d) 12 in.
Article 330 Metal-Clad Cable: Type MC
Type MC cable
must be supported and secured at intervals not exceeding _____.
(a) 3 ft
(b) 6 ft
(c) 4 ft
(d) 2 ft
Article 334 Nonmetallic-Sheathed Cable:
Types NM, NMC and NMS
NM cable on
a wall of an unfinished basement is permitted to be installed in a listed
raceway. A _____ must be installed at the point where the cable enters the
raceway. Metal conduit and tubing and metal outlet boxes must be grounded.
(a) nonmetallic
bushing or adapter
(b) sealing
fitting
(c) bonding
bushing
(d) junction
box
Where more than two NM cables
containing two or more current-carrying conductors are bundled together
and pass through wood framing that is to be fire- or draft-stopped using
thermal insulation or sealing foam, the allowable ampacity of each
conductor is _____.
(a) no more than 20A
(b) adjusted in accordance with
310.15(B)(2)(a)
(c) limited to 30A
(d) calculated by an engineer
Article 348 Flexible Metal Conduit: Type FMC
Unsupported lengths of flexible
metal conduit are allowed at terminals where flexibility is required but
must not exceed _____.
(a) 3 ft for trade sizes ½ in. through 1¼ in.
(b) 4 ft for trade sizes 1½ in. through 2 in.
(c) 5 ft for trade size 2½ in. and larger
(d) all of these
Article 350 Liquidtight Flexible Metal
Conduit: Type LFMC
Liquidtight flexible metal
conduit is not required to be fastened when used for tap conductors to
luminaires up to _____ in length.
(a) 4½ ft
(b) 18 in.
(c) 6 ft
(d) no limit on length
Article 376 Metal Wireways
Where a wireway
is used as a pull box for insulated conductors 4 AWG or larger, the
distance between raceway and cable entries enclosing the same conductor
must not be less than that required in 314.28(A)(1) for straight pulls and
314.28(A)(2) for angle pulls.
(a) True
(b) False
In addition to the wiring space
requirement in 356.56(A), the power distribution block must be installed
in a metal wireway not smaller than that
specified _____.
(a) by the wireway
manufacturer
(b) by the manufacturer of the
power distribution block
(c) both a and b
(d) either a or b
Article 386 Surface Metal Raceways
Surface
metal raceways must be secured and supported at intervals _____.
(a) in
accordance with the manufacturer’s installation instructions
(b) appropriate
for the building design
(c) not
exceeding 8 ft
(d) not
exceeding 4 ft
Article 388 Surface Nonmetallic Raceways
Where combination surface
nonmetallic raceways are used for both signaling conductors and for
lighting and power circuits, the different systems must be run in separate
compartments identified by _____ of the interior finish.
(a) stamping
(b) imprinting
(c) color-coding
(d) any of these
Chapter 4
Equipment for General Use
Article 400 Flexible Cords and Cables
In industrial establishments
where conditions of maintenance and supervision ensure that only qualified
persons service the installation, flexible cords and cables are permitted
to be installed in aboveground raceways that are no longer than _____ , to
protect the flexible cord or cable from physical damage.
(a) 25 ft
(b) 50 ft
(c) 100 ft
(d) no limit
Article 406 Receptacles, Cord Connectors,
and Attachment Plugs (Caps)
Which of the following
statements are true for covers in a wet location for 15 and 20A, 125 and 250V
receptacles?
(1) The receptacle cover for a product, which will not be
attended while in use, must be listed as weatherproof while the attachment plug
is inserted or removed.
(2) Portable loads such as appliances and power tools must
make use of a receptacle cover that is listed as weatherproof while the
attachment plug is removed.
(a) 1 only
(b) 2 only
(c) 1 and 2
(d) none of these
Article 408 Switchboards and Panelboards
Unused openings for circuit
breakers and switches in switchboards and panelboards must be closed using
_____ or other approved means that provide protection substantially
equivalent to the wall of the enclosure.
(a) duct seal and tape
(b) identified closures
(c) exothermic welding
(d) sheet metal
Article 410 Luminaires, Lampholders, and
Lamps
Luminaires located in bathtub
and shower zone must be listed for damp locations, or listed for wet
locations where _____.
(a) below 7 ft height
(b) below 6 ft 7 in. height
(c) subject to shower spray
(d) not GFCI protected
Thermal insulation must not be
installed above a recessed luminaire or within _____ of the recessed luminaire’s enclosure, wiring compartment, or ballast
unless it is a Type IC luminaire.
(a) 6 in.
(b) 12 in.
(c) 3 in.
(d) ½ in.
In indoor locations, other than
dwellings and associated accessory structures, fluorescent luminaires that
utilize double-ended lamps and contain ballast(s) that can be serviced or
re-ballasted in place must have a
disconnecting means, to disconnect simultaneously all conductors of the
ballast, including the _____ conductor if any. The disconnecting means
must be accessible to qualified persons. This requirement will become
effective January 1,
2008
(a) high leg
(b) grounded neutral
(c) equipment ground
(d) b and c
Article 411 Lighting Systems Operating at 30
Volts or Less
Lighting systems operating at
30V or less are allowed to be concealed or extended through a building
wall using _____.
(a) any of the wiring methods specified in Chapter 3
(b) wiring supplied by a listed class 2 power source
installed in accordance with 725.52
(c) both a and b
(d) metal raceways only
Article 422 Appliances
Cord-and-plug-connected vending
machines manufactured or remanufactured on or after January 1, 2005 must include a ground-fault
circuit interrupter as an integral part of the attachment plug or in the
power-supply cord within 12 in. of the attachment plug.
Cord-and-plug-connected vending machines not incorporating integral GFCI
protection must _____.
(a) be re-manufactured
(b) be disabled
(c) be connected to a GFCI-protected outlet
(d) be connected to an AFCI-protected circuit
Article 445 Generators
Unless two restrictive
conditions exist, a generator must be equipped with one or more
disconnecting means to disconnect the generator, its protective devices,
and all control apparatus entirely from the circuits supplied by the
generator.
(a) True
(b) False
Chapter 5
Special Occupancies
Article 501 Class I Locations
Article 501 covers the requirements for
electrical and electronic equipment and wiring for all voltages in Class
I, Divisions 1 and 2 locations where fire or explosion hazards may exist
due to _____.
(a) flammable gases
(b) vapors
(c) flammable liquids
(d) a, b, or c
Article 511 Commercial Garages, Repair, and
Storage
Where flammable liquids having a
flash point below 100°F, such as gasoline or gaseous fuels such as
natural gas, or LPG will not be transferred, such location is considered to be
_____.
(a) Class I, Division 1
(b) Class I, Division 2
(c) Class II, Division 1
(d) unclassified
For each floor area inside a
commercial garage where Class I liquids are transferred, the entire area
up to a level of _____ above the floor is considered to be a Class I,
Division 2 location.
(a) 6 in.
(b) 12 in.
(c) 18 in.
(d) 24 in.
Article 513 Aircraft Hangars
All 125V, 1Ø, 15 and 20A
receptacles installed in aircraft hangars in areas where _____ are used
must have ground-fault circuit-interrupter protection for personnel.
(a) electrical diagnostic equipment
(b) electrical hand tools
(c) portable lighting equipment
(d) any of these
Article 514 Motor Fuel Dispensing Facilities
Underground wiring to gasoline
dispensers must be installed in _____.
(a) threaded rigid metal conduit
(b) threaded intermediate metal conduit
(c) rigid nonmetallic conduit when buried under not less
than 2 ft of cover
(d) any of these
Article 517 Health Care Facilities
The wiring for the emergency
system in hospitals may be installed in flexible metal raceways and listed
metal sheathed cable assemblies for specific situations, including _____ .
(a) enclosing conductors smaller than 12 AWG only
(b) within 50 feet of a disconnect for the branch circuit
(c) where necessary for flexible connection to equipment
(d) only where installed so the wiring method is exposed and
accessible
Article 525 Carnivals, Circuses, Fairs, and
Similar Events
GFCI protection is not
permitted at carnivals, circuses and fairs for _____.
(a) sign lighting
(b) equipment that is not readily accessible to the general
public
(c) egress lighting
(d) circuits servicing spotlights
Article 547 Agricultural Buildings
An equipotential plane is not
required in dirt confinement areas containing metallic equipment that is accessible
to animals and may become energized. GFCI protection must be provided for
all 15 and 20A general-purpose receptacles located in the dirt confinement
areas.
(a) True
(b) False
Article 555 Marinas and Boatyards
Electrical
wiring and equipment located at or serving motor fuel dispensing equipment in
marinas or boatyards must be in accordance with Article 514, in addition
to the requirements of Article 555. All electrical wiring for_____ must
be installed on the side of the wharf, pier, or dock opposite from the liquid
piping system.
(a) power
(b) lighting
(c) dispensing equipment
(d) a and b
Article 590 Temporary Installations
Type NM and NMC cable is
permitted to be used for temporary installations in any dwelling, building
or structure without height limitation or limitation by building
construction type and without concealment when installed as _____.
(a) branch circuits
(b) feeders
(c) a or b
(d) none of these
Chapter 6
Special Equipment
Article 604 Manufactured Wiring Systems
Manufactured wiring systems
constructed with Type MC cable must be supported and secured at intervals
not exceeding _____.
(a) 3 ft
(b) 41/2 ft
(c) 6 ft
(d) none of these
Article 625 Electric Vehicle Charging System
According to Article 625,
automotive-type vehicles for highway use include _____.
(a) passenger automobiles
(b) trucks
(c) neighborhood electric vehicles
(d) all of these
Article 640 Audio Signal Processing,
Amplification, and Reproduction Equipment
All abandoned audio
distribution cables must be removed.
(a) True
(b) False
Article 680 Swimming Pools, Fountains, and
Similar Installations
Overhead conductors over a
swimming pool must meet the clearance requirements of Article 680. Where
a minimum clearance from the water level is given, it is taken from the
_____ water level of the specified body of water.
(a) average
(b) maximum
(c) minimum
(d) nominal
All outdoor 15 and 20A, 1Ø,
125V through 250V receptacles for pool, spa and hot tub pump motors must
be _____.
(a) AFCI protected
(b) GFCI protected
(c) approved
(d) listed
Receptacles must not be less
than _____ from the inside walls of a storable pool.
(a) 8 ft
(b) 10 ft
(c) 15 ft
(d) 20 ft
Article 695 Fire Pumps
For fire pump motors, the _____
must be selected to carry indefinitely the sum of the locked-rotor current
of the fire pump motor(s) and pressure maintenance pump motor(s) and the
full-load current of any associated fire pump accessory equipment
connected to this power supply.
(a) overcurrent protective device(s)
(b) pump motor conductors
(c) a and b
(d) none of these
Chapter 7
Special Conditions
Article 700 Emergency Systems
The alternate power source
(generator, UPS, etc.) of an emergency system can supply emergency,
legally required standby, and optional standby system loads where
automatic selective load pickup and load shedding is provided as needed to
ensure adequate power for all of these purposes equally.
(a) True
(b) False
Article 701 Legally Required Standby Systems
The alternate power source
(generator, UPS, etc.) is permitted to supply legally required standby and
optional standby system loads where automatic selective load pickup and
load shedding is provided as needed to ensure adequate power to the
legally required standby systems.
(a) True
(b) False
Article 702 Optional Standby Systems
For optional standby systems,
the temporary connection of a portable generator without transfer
equipment is permitted, where written safety procedures are in
place and conditions of maintenance and supervision ensure that only
qualified persons will service the installation, and where the normal
supply is physically isolated by _____.
(a) a lockable disconnecting means
(b) the disconnection of the normal supply conductors
(c) an extended power outage
(d) a or b
Article 725 Class 1, Class 2, and Class 3
Remote-Control, Signaling and Power-Limited Circuits
All accessible portions of abandoned
Class 2, Class 3, and PLTC cables must be removed.
(a) True
(b) False
Audio system circuits described
in 640.9(C), and using Class 2 or Class 3 wiring methods, are not
permitted to be installed in the same cable or raceway with _____.
(a) other audio system circuits
(b) Class 2 conductors or cables
(c) Class 3 conductors or cables.
(d) b or c
Article 760 Fire Alarm Systems
All accessible portions of
abandoned fire alarm cable must be removed.
(a) True
(b) False
Fire alarm equipment supplying
PLFA circuits must be durably marked where plainly visible to indicate
each circuit that is _____.
(a) supplied by a power-limited fire
alarm circuit
(b) a power-limited fire alarm circuit
(c) a fire alarm circuit
(d) none of these
Article 770 Optical Fiber Cables and
Raceways
Optical fiber cables installed
_____ on the surface of ceilings and sidewalls must be supported by the
building structure in such a manner that the cable will not be damaged by
normal building use.
(a) exposed
(b) concealed
(c) hidden
(d) a and b
Optical fiber cables are not
required to be listed and marked where the length of the cable within the
building, measured from its point of entrance, does not exceed_____ and
the cable enters the building from the outside and is terminated in an
enclosure.
(a) 25 ft
(b) 30 ft
(c) 50 ft
(d) 100 ft
Chapter 8
Communications Systems
Article 800 Communications Circuits
Communications cables installed
_____ on the surface of ceilings and sidewalls must be supported by the
building structure in such a manner that the cable will not be damaged by
normal building use.
(a) exposed
(b) concealed
(c) hidden
(d) a and b
Limiting the length of the
primary protector grounding conductors for communication circuits on one- and
two-family dwellings reduces differences in
potential between the building’s _____ and communications systems during lightning
events.
(a) power
(b) fire alarm
(c) lighting
(d) lightning protection
Article 820 Community Antenna Television and
Radio Distribution Systems
All accessible portions of
abandoned CATV cable must be removed.
(a) True
(b) False
Exposed CATV cables must be
secured by straps, staples, hangers, or similar fittings designed and
installed so as not to damage the cable.
(a) True
(b) False
Community antenna television
and radio (CATV) system coaxial cables are not required to be listed and
marked where the length of the cable within the building, measured from
its point of entrance, does not exceed_____ and the cable enters the building
from the outside and is terminated at a grounding block.
(a) 25 ft
(b) 30 ft
(c) 50 ft
(d) 100 ft
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