Methods 2
Allowing metal shavings from a drilling operation to fall onto live parts of electrical equipment generally results in a(n) ____, which can cause deadly burns.
"Ark" blast
On your prints what circuit is the first floor bathroom GFCI's on? ____________
#7
What size of panel is for the Real Estate Office?
100 A
_____ are designed for surface mounting and have swinging doors or covers secured directly to and telescoping with the walls of the enclosure.
100 Cutout boxes
The switches used in the low-voltage remote-control system operate on ____ volts.
24
The standard ampere rating for fuses and fixed trip circuit breakers is given in NEC Table 240.6(A).
240.6(A)
What size of circuit is the dishwasher in the Bakery.
30 A 3-Ph
On large electrical installations, an arc flash can generate temperatures of ______ degrees F.
35,000
Grounded conductors _____ AWG or larger can be identified by distinctive white or gray markings at their terminations.
4 AWG
The requirements for construction and application of panelboards are set forth in NEC® Article _______.
408
Insight means visible and not more than _____ft. distant from the equipment.
50
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
60º C
Conductors shall have their ampacity determined using the _____ column of Table 310.15(B)(16) for circuits rated over 100A, or marked for conductors larger than 1 AWG, unless the equipment terminals are listed for use with higher temperature rated conductors.
75 C
What is the metric designator for a raceway of trade size 3?
78
"______" means acceptable to the authority having jurisdiction.
Approved
What does BIM stand for?
Building Information Modeling
What circuits is the A/C unit on the south side of the building? _______________
DS 14, 16, 18
Nowhere in the NEC requires the removal of abandon conductors.
False
The wording on a counterfeit UL logo might say "approved" instead of "____."
LISTED
Formal interpretations of the NEC are permitted to be made by ________.
National Fire Protection Association
Which item in the General Clauses and Conditions is of value to the contractor and his estimator only?
Notice to Bidders
In the areas where ____ is enforced, the NEC® is the law.
OSHA
____ schedules are typically provided to detail the circuits and overcurrent protection required for distribution equipment.
Panelboard
____ are distribution points for electrical circuits.
Panelboards
The electrician uses the ___________________________ to determine whether all of the drawings are at hand.
Schedule of Working Drawings
What floor are the elevator controls located on?
Second Floor
_____ at other than dwelling units shall be legibly field marked with the maximum available fault current, include the date the fault-current calculation was performed, and be of sufficient durability to withstand the environment involved.
Service equipment
____ are not usually permitted on the hinged side of the door but are required to be located on the strike side.
Switches
A battery system includes storage batteries and battery chargers, and can include inverters, converters, and associated electrical equipment.
True
Abandon cables may not be the cause of a fire, but they do ad fuel to the fire.
True
By special permission, the authority having jurisdiction may wave special requirements in this code where it is assured that equivalent objectives can be archived by establishing and maintaining effective safety.
True
Entrances to rooms and other guarded locations containing exposed live parts shall be marked with conspicuous _____ forbidding unqualified persons to enter.
True
Explanatory material, such as references to other standards, references to related sections of the NEC, or information related to a Code rule, are included in the form of informational Notes.
True
Half inch conduit is a trade size. It is not an actual measurement of the conduit.
True
NFPA 70E----standard for Electrical Safety in the Workplace, provides information to help determine the electrical safety training requirements expected for a qualified person.
True
Soldered splices shall first be spliced or joined so as to be mechanically and electrically secure without solder and then be soldered.
True
The common point on a wye-connection in a polyphase system is a "neutral point."
True
The metric designator for 3/4" conduit is 21 millimeters.
True
For a circuit to be considered a multiwire branch circuit, it shall have _____.
Two or more ungrounded conductors with a voltage potential between them; grounded conductor having equal voltage potential between it and each ungrounded conductor of the circuit; a grounded conductor connected to the neutral or grounded terminal of the system
Which nonprofit organization publishes the Electrical Appliances and Utilization Equipment Directory (Orange Book)?
UL
Where is the MDP for building located?
West end
If more than one symbol is located immediately adjacent to another, it usually means that a multigang box for multiple wiring devices and ____ are to be installed.
a single cover
In the NEC, approved means ______.
acceptable to the authority having jurisdiction
Who may submit a proposal to change the NEC® using the Proposal Form found in the back of the NEC®?
anyone
An arc-fault circuit interrupter is a device intended to deenergize the circuit when a(n) _____ is detected.
arc fault
Communications equipment includes equipment and conductors used for the transmission of _____.
audio video data
What color of conductor should you use for circuit #31 in a 208/120V 3 phase panel? __________________
black
What are the industry standard colors for the ungrounded conductors in a 208/120V system? A Phase _________________ B Phase_________________ C Phase_______________
black, red, blue
What color of conductor should you use for circuit #11 in a 208/120V 3 phase panel? __________________
blue
The construction plans for a building are often called ____.
blueprints
What are the industry standard colors for the ungrounded conductors in a 480/277V system? A Phase _________________ B Phase_________________ C Phase_______________
brown, orange, yellow
When raceways are installed vertically in the building, from one floor to another, the vertical direction may be represented by the arrow symbol inside a(n) ____.
circle
Panelboards are distribution points for electrical circuits. They contain ______________.
circuit protective devices
Hash marks drawn across raceway or cable lines indicate the number and use of the installed ________.
conductors
Conductors normally used to carry current shall be _____ unless otherwise provided in this Code.
copper or aluminum
When concealed raceways are drawn on plans, they usually are shown as ____.
curved lines
A rectangle with parallel diagonal lines as the fill pattern represents a ____.
distribution panel
When turning a standard disconnect switch on, ____ of the switch.
do not stand in front
The symbol for ____ consist of two parallel lines inside, and sometimes extending out of, a circle.
duplex convenience receptacles
Complete the following by indicating the correct source of information.
electrical layout drawings - panelboard schedule architectural floor plan - room width architectural floor plan - swing of door sections - View of interior wall
Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally contacting energized parts is called "_____."
enclosed
The NEC is revised and updated ______.
every three years
Fine Print Notes (FPN) in the NEC are ______.
explanatory information (not mandatory)
The NEC is _____.
for the practical safeguarding of persons and property
A "_____" is a building or portion of a building in which one or more self-propelled vehicles can be kept for use, sale, storage, rental, repair, exhibition, or demonstration purposes.
garage
Chapters 1-4 of the NEC apply ______.
generally to all electrical installations
The neutral must have an outer finish that is white or ______, or three continuous white stripes
gray
All metal box must be _________.
grounded
One type of illumination system consists of rows of strip fluorescents and a ceiling that will transmit light. For this system to be efficient, the surfaces above the luminous ceiling must be ____.
highly reflective (white)
The typical outlet notation "H" designates a ____ outlet.
horizontally mounted
Article 200 provides the requirements for _____.
identification of terminals, grounded conductors in premises wiring systems, identification of grounded conductors
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
To prevent __________, all conductors of the same circuit must be in the same raceway.
induction heating
In the metric system, what is the prefix for 1000?
kilo
An outlet intended for the direct connection of a lampholder or a luminaire is a(n) "_____."
lighting outlet
The specific type of luminaire to be installed as well as the manufacturer and model is often identified in the specifications or in a ___________.
luminaire schedule
When the code says "shall be done " it means that it __________ be done.
must
The NEC contains provisions that are considered ______.
necessary for safety
What does the term "trade size" mean?
not an actual size but what something is known by
What color of conductor should you use for circuit #16 in a 480/277V 3 phase panel? __________________
orange
What color of conductor should you use for circuit #52 in a 480/277V 3 phase panel? __________________
orange
All connections must be tight so as not to _________ under load.
overheat
A hybrid system is comprised of multiple power sources, such as _____, but not the utility power system.
photovoltaic wind micro-hydro generators
The NEC® defines a(n) ____ as one who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to recognize and avoid the hazards involved.
qualified person
When modifications to the electrical installation occur that affect the maximum available fault current at the service, the maximum available fault current shall be verified or _____ as necessary to ensure the service equipment ratings are sufficient for the maximum available fault current at the line terminals of the equipment.
recalculated
What color of conductor should you use for circuit #27 in a 208/120V 3 phase panel? __________________
red
Complete the following by indicating the correct source of information.
sections - ceiling height electrical symbol schedule - electrical receptacle style electrical layout drawings - electrical outlet location elevations - exterior wall finishes site plans - grading elevations
The _____ is the point of connection between the facilities of the serving utility and the premises wiring.
service point
A switch symbol without a number beneath the horizontal line means that a ____ switch should be installed.
single-pole
A ____ is when the dimensions of a product already designed and manufactured to the inch-pound system have their dimensions converted to metric dimensions.
soft metric conversion
A cable routing assembly is composed of single or connected multiple channels as well as associated fittings, forming a structural system to _____ communications wires and cables, optical fiber and data cables; and Class 2, Class 3, and Type PLTC cables; and power-limited fire alarm cables in plenum, riser, and general-purpose applications.
support, route
If the raceway is for use of the ____ system, the line will be broken and an uppercase T will be inserted.
telephone
According to the Supplementary General Conditions, who is responsible for any utilities that are damaged?
the contractor
A dashed line with an "S" designates a(n) ____.
underfloor signal raceway
The term ____ means not connected to ground or a conductive body that extends the ground connection.
ungrounded
The white conductor within a cable can be used for a(n) _____ conductor where permanently reidentified to indicate its use as an ungrounded conductor at each location where the conductor is visible and accessible.
ungrounded
The low-voltage remote-control system offers control flexibility that is not available in thetraditional control system. The switches used in this system operate on 24 volts, and the powerwiring, at 120 volts, goes directly to the electrical load. This reduces branch-circuit length and____________.
voltage drop
Live parts operating at 50V to 1,000V, nominal shall be guarded by being _____.
warning signs
What color of conductor should you use for circuit #5 in a 480/277V 3 phase panel? __________________
yellow