quarter final

Connection by means of wire binding screws, studs, and nuts having upturned lugs or the equivalent shall be permitted for ___ awg or smaller conductors

10

In other than dwelling units in addition to requirements for field or factory marking of equipment to warn qualified persons of potential electric arc flash hazards, a permanent label shall be field or factory applied to service equipment rated ___ or more

1200 amps

where equipment operating at 1000 volts nominal or less to ground and likely to require examination adjustment servicing or maintenance while energized is required by installation instructions or function to be located in a space with limited access and where equipment is installed above a lay in ceiling there shall be an opening no smaller than

22 x 22

a minimum working space depth of ___ ft to live parts of equipment operating at 277 volts to ground is required where there are exposed live parts on one side and no live or grounded parts on the other side.

3

the minimum working space on a circuit for equipment operating at 120 volts to ground with exposed live parts on one side and no live parts on the other side of the working space is ___ feet

3

The required working space for access to live parts of equipment operating at 300 volts to ground where there are exposed live parts on one side and grounded parts on the other side is ___ ft

3.5

the minimum height of dedicated equipment space for motor control centers installed indoors is ___ ft above the enclosure or to the structural ceiling whichever is lower

6

for equipment rated 1200 amps or more and over 6 feet wide that contains overcurrent devices switching devices or control devices there shall be on entrance to and egress from the required working space not less than 24 in wide and ___ ft high at each end of the working space.

6.5

Conductor ampacity shall be determined using the ___ column of table 310.15(b)(16) for circuits rated 100a or less or marked for 14 AWG through 1 AWG conductors

60 degrees

a class a gfci protection device is designed to trip when the current to ground is ___ or higher

6MA

Conductors shall have their ampacity determined using the column of table 310.15(B)(16) for circuits rated over 100 amps or marked for conductors larger than 1 AWG unless the equipment terminals are listed for use with higher temperature rated conductors

75 degrees

nonmandatory informative annexes contained in the back of the NEC book are

A and B

In the NEC the words ___ indicate a mandatory requirement

A or B

Explanatory material such as references to other standards references to related sections of the NEC, or information related to a NEC rule, are included in the form of informational notes

False

The NEC covers underground mine installations and self propelled mobile surface mining machinery and its attendant electrical trailing cable

False

installations shall comply with the material located in the NEC annexes because they are part of the requirements of the code

False

By special permission, the authority having jurisdiction may waive specific requirements in this NEC where it is assured that equivalent objectives can be achieved by establishing and maintaining effective safety.

True

Compliance with either the SI or the inch-pound unit of measurement system shall be permitted

True

Listed or labeled equipment shall be installed and used in accordance with any instructions included in the listing or labeling

True

Some cleaning and lubricating compounds can cause severe deterioration of many plastic materials used for insulating and structural applications in equipment

True

Utilities may be subject to compliance with codes and standards covering their regulated activities as adopted under governmental law or regulation

True

Utilities may include entities that are designated or recognized by governmental law or regulation by public service/utility commissions

True

Access and ___ shall be provided and maintained about all electrical equipment to permit ready and safe operation and maintenance of such equipment

Working space

working space distamces for enclosed live parts shall be measured from the ___ of equipment or apparatus, if the live parts are enclosed

a or b

Capable of being removed or exposed without damaging structure or finish or not permanently closed in by the structure or finish of the building is known as

accessible

The NEC contains provisions considered necessary for safety which will not necessarily result in

all of these

The authority having jurisdiction has the responsibility for

all of these

Wooden plugs driven into holes in ___ or similar materials shall not be used for securing electrical equipment

all of these

The temperature rating associated with the ampacity of a ___ shall be selected and coordinated so as not to exceed the lowest temperature rating of any connected termination, conductor, or device

conductor

a ___ location is protected from weather and not subject to saturation with water or other liquids

damp

the dedicated space above a panelboard extends to a dropped or suspended ceiling which is considered a structural ceiling

false

The Nec is

for the practical safeguarding of persons and property

a conductor used to connect the system grounded conductor of the equipment to a grounding electrode or to a point on the grounding electrode system is called the ___ conductor

grounding electrode

Connectors and terminals for conductors more finely stranded than class b and class c, as shown in table 10 of chapter 9 shall be ___ for the specific conductor class or classes

identified

illumination shall be provided for all working spaces about service equipment switchboards switchgear panelboards or motor control centers

installed indoors

A circuit breaker is a device designed to ___ the circuit automatically on a predetermined overcurrent without damage to itself when properly applied within its rating

open

a___ is a point on the wiring system at which current is taken to supply utilization equipment

outlet

NFPA 70E standard for electrical safety in the workplace provides guidance such as determining severity of potential exposure, planning, safe work practices arc flash labeling and selecting ___

personal protective equipment

a contact device installed at an outlet for the connection of an attachment plug, or for the direct connection of electrical utilization equipment designed to mate with the corresponding contact device is known as a ___

receptacle

Each disconnecting means shall be legibly marked to indicate its purpose unless located and arranged so

the purpose is evident

In many circumstances the authority having jurisdiction can be a property owner or his/her designated agent

true

chapters 5,6,7 apply to special equipment, or other special conditions and may supplement or modify the requirements in chapters 1 through 7

true

A single receptacle is a single contact device with no other contact device on the same___

yoke