Deck 1: National Electrical Code

Question 1

No handhole shall be required in a metal pole, supporting a luminaire, that is _________ $\mathrm{ft}$ or less in height above grade that is provided with a hinged base.

Answer 1

20

Question 2

Where run across the top of floor joists, or within _________ $\mathrm{ft}$ of the floor or floor joists across the face of rafters or studding, in an attic that has permanent stairs, nonmetallic-sheathed cable shall be protected by substantial guard strips that are at least as high as the cable.

Answer 2

7. Section 334.23 states that nonmetallic-sheathed cable installed in attics must comply with 320.23 .

Question 3

Mandatory NEC rules are those that identify actions that are specifically required or prohibited and are characterized by the use or the terms_________

Answer 3

shall or shall not

Question 4

In other than dwelling units, in addition to other arcflash hazard warning requirements in this section, a permanent label shall be field or factory applied to service equipment rated _________amps or more.

Question 5

A location temporarily subject to dampness or wetness, as in the case of a building under construction, is classified as a(n)_________ location.

Question 6

Kitchen countertop receptacle outlets shall be installed so that no point along the wall line is more than in_________., measured horizontally from a receptacle outlet in that space.

Question 7

In hazardous (classified) locations, NPT threaded entries into explosionproof equipment shall be made up with at least_________ threads fully engaged.

Question 8

The disconnecting means for motor circuits rated 1000 volts, nominal, or less, shall have an ampacity rating of at least_________ of the motor.

Question 9

The life safety and critical branches of the hospital essential electrical system shall be installed and connected to the alternate power source specified in $517.30(A)$ and (B) so that all functions specified herein for the life safety and critical branches are automatically restored to operation within_________ after interruption of the normal source.

Question 10

Where an equipment bonding jumper is installed on the outside of a raceway, the length shall not exceed _________ $\mathrm{ft}$ and shall be routed with the raceway or enclosure.

Question 11

A surface-mounted incandescent or LED luminaire installed on the ceiling of a clothes closet must have a minimum clearance of_________ in. between the luminaire and the nearest point of the closet storage space.

Question 12

Where cable trays support individual conductors and where the conductors pass from one cable tray to another, or from a cable tray to raceways or to equipment where the conductors are terminated, the distance between cable trays or between the cable tray and the equipment shall not exceed_________ $\mathrm{ft}$

Question 13

In dwelling units, hallways of _________ $\mathrm{ft}$ or more in length shall have at least one receptacle outlet.

Question 14

A bathroom is an area that includes:
I. a tub and a toilet.
II. a basin and a toilet.
III. a toilet and a shower.

A) I only
B) II only
C) either I or III
D) I, II, and III

Question 15

An outdoor motor fuel dispensing device is considered to be a Class I, Division 2 location up to_________ in. above grade level within _________ $\mathrm{ft}$ horizontally in all directions from the dispenser enclosure.

Question 16

Where nonmetallic-sheathed cable is run at angles with joists in unfinished basements and crawl spaces, it shall be permissible to secure cables not smaller than two _________conductors directly to the lower edges of the joists.

Question 17

The ampacity of the supply conductors for a resistance welder that may be operated at different times at different values of primary current or duty cycle shall not be less than _________of the rated primary current for seam and automatically fed welders.

Question 18

Service conductors installed as open conductors shall have a clearance of not less than_________ $\mathrm{ft}$ from windows that are designed to be opened.

Question 19

The_________ is the connection between the grounded circuit conductor and the equipment grounding conductor at the service.

Question 20

Installations within or behind a surface of noncombustible material, boxes shall be made so that the front edge of the box will not be set back of the finished surface more than_________ in.

Question 21

Each general-care (Category 2) space patient bed location shall be provided with a minimum of _________receptacle(s).

Question 22

Plug fuses of_________ and lower rating shall be identified by a hexagonal configuration of the window, cap, or other prominent part to distinguish them from fuses of higher ampere ratings.

Question 23

Branch-circuits that supply neon tubing installations shall not be rated in excess of _________

Question 24

The width of the working space in front of the electrical equipment shall be _________or 30 in., which- ever is greater.

Question 25

For each major repair garage floor, the entire area up to a level of_________ in. above the floor shall be classified as Class I, Division 2 if ventilation is not provided.

Question 26

One 15-ampere-rated duplex receptacle may be installed on a_________ ampere branch-circuit.

Question 27

_________is defined as connected to establish electrical continuity and conductivity.

Question 28

In all areas specified in 210.52 , all nonlocking-type 125- and 250-volt, 15- and 20-ampere receptacles shall be_________

Question 29

Where it is unlikely that two or more _________loads will be in use simultaneously, it shall be permissible to use only the largest load(s) that will be used at one time, in computing the total load of a feeder or service.

Question 30

Branch-circuit conductors that supply a single motor used in a continuous duty application shall have an ampacity of not less than_________ of the motor's fullload current rating as determined by $430.6(A)(1)$ .

Question 31

A clearly labeled emergency shutoff or control switch for the purpose of stopping the motor(s) that provide power to the recirculation system and jet system shall be installed at a point readily accessible to the users and at least _________ ft away adjacent to, and within sight of the spa or hot tub.

Question 32

Where _________are installed in a junction box, each section shall be considered as a separate box.

Question 33

In a location where flammable anesthetics are employed, the entire area shall be considered to be a Class I, Division I location that shall extend upward to a level _________ $\mathrm{ft}$ above the floor.

Question 34

Conductors shall be considered outside of a building or other structure where installed under not less than_________ in. of concrete beneath a building or other structure.

Question 35

A compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system is $a(n)$ _________.

Question 36

All cables installed in agricultural buildings shall be secured within _________in. of each cabinet, box, or fitting.

Question 37

Where field-installed wiring pass through an opening in an enclosure, conduit box, or barrier, a shall be used to protect the conductors from the edges of an opening having sharp edges within generators.

Question 38

The service equipment shall be located in sight from and not more than_________ $\mathrm{ft}$ from the exterior wall of the mobile home it serves.

Question 39

Any dwelling unit wall space_________ $\mathrm{ft}$ or more in width (including space measured around corners) and unbroken along the floor line by doorways and similar openings, fireplaces, and fixed cabinets that do not have countertops or similar work surfaces shall have a receptacle outlet.

Question 40

Busways shall be securely supported at intervals not exceeding ______ $\mathrm{ft}$ unless otherwise designed and marked.

Question 41

All exposed lamps in theater dressing or makeup areas including rooms, where they are less than $\mathrm{ft}$ from the floor, shall be equipped with open-end guards riveted to the outlet box cover or otherwise sealed or locked in place.

Question 42

When calculating track lighting loads for a commercial service, an additional load of ______volt-amperes shall be included for every ______ $\mathrm{ft}$ of lighting track or fraction thereof.

Question 43

In aircraft maintenance and storage hangars, the area within______ $\mathrm{ft}$ horizontally from aircraft power plants or aircraft fuel tanks shall be classified as a Class I, Division 2 or Zone 2 location that shall extend upward from the floor to a level ______ $\mathrm{ft}$ above the upper surface of wings and of the engine enclosures.

Question 44

The walls and roofs of transformer vaults shall be constructed of materials that have approved structural strength for the conditions with a minimum fire resistance of______

Question 45

Exposed vertical risers from industrial machinery shall be permitted to be supported at intervals not exceeding______ $\mathrm{ft}$ , provided the intermediate metal conduit is made up with threaded couplings, is firmly supported at the top and bottom of the riser, and no other means of intermediate support is readily available.

Question 46

Duty on elevator driving machine motors shall be rated as______

Question 47

Continuous duty is an operation at a substantially constant load for______

Question 48

Each critical-care (Category 1) space patient bed location shall be supplied by at least ______branch circuit(s).

Question 49

A metal pole, supporting a luminaire, does not require a handhole if the pole is ______ $\mathrm{ft}$ or less in height above grade where the supply wiring method continues without splice or pull point, and where the interior of the pole and any splices are accessible by removing the luminaire.

Question 50

For a one-family dwelling, at least one receptacle outlet readily accessible from grade and located not more than______ $\mathrm{ft}$ above grade level shall be installed at the front and back of the dwelling.

Question 51

Where the $N E C$ specifies that one equipment shall be "within sight" of another equipment, the specified equipment shall be visible and not more than $\mathrm{ft}$ distant from the other.

Question 52

Each operating room in a health care facility shall be provided with a minimum of _________receptacles.

Question 53

Electrical nonmetallic tubing shall not have more than the equivalent of four _________bends between pull points; for example, conduit bodies and boxes.

Question 54

In each conduit run leaving a Class I, Division 2 location, the sealing fitting shall be permitted to be installed on either side of the boundary within _________ $\mathrm{ft}$ of the boundary.

Question 55

The point of attachment of the overhead service conductors to a building shall not be less than $\mathrm{ft}$ above finish grade.

Question 56

Nonmetallic-sheathed cable must be secured within _________in. from a single gang plastic device box $\left(2 \frac{1}{4} \mathrm{in} . \times 4\right.$ in.) mounted in a wall if the cable is not secured to the box.

Question 57

The space equal to the width and depth of switchboards, panelboards, and motor control centers and extending from the floor to a height of_________ $\mathrm{ft}$ above the equipment or to the structural ceiling, whichever is lower, shall be dedicated to the electrical installation.

Question 58

On a 4-wire, delta-connected system where the midpoint of one phase winding is grounded, only the conductor or busbar having the higher phase voltage to ground shall be durably and permanently marked by an outer finish that is_________ in color or by other effective means.

Question 59

$A(n)$ _________is a reliable conductor to ensure the required electrical conductivity between metal parts that are required to be electrically connected.

Question 60

In each attached garage and in each detached garage with electric power, at least one receptacle outlet shall be installed in each vehicle bay and not more than_________ $\mathrm{ft}$ above the floor.

Question 61

The total rating of utilization equipment fastened in place, other than luminaires, shall not exceed percent of the branch-circuit ampere rating where lighting units, cord- and plug-connected utilization equipment not fastened in place, or both, are also supplied.

Question 62

A surface-mounted fluorescent luminaire installed on the ceiling of a clothes closet must have a minimum clearance of_________ in between the luminaire and the nearest point of the closet storage space.

Question 63

A grounded circuit conductor shall be permitted to ground non-current-carrying metal parts of equipment on the __________ side of the ac service-disconnecting means

Question 64

Where a permanently installed pool is installed at least one 125 -volt 15 - or 20 -ampere receptacle on a general-purpose branch circuit shall be located a minimum of_________ $\mathrm{ft}$ from and not more than _________ $\mathrm{ft}$ from the inside wall of the pool.

Question 65

In multiwire branch circuits, the continuity of $a(n)$ _________ shall not depend on device connections such as lampholders, receptacles, and so forth, where the removal of such devices would interrupt the continuity.

Question 66

The NEC is not intended as a design specification or $a(n)$ _________

Question 67

$\mathrm{A}(\mathrm{n})$ _________is a device intended to provide protection from the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-energize the circuit when an arc fault is detected.

Question 68

Panelboards shall be durably marked by the manufacturer with_________ and the number of ac phases or $\mathrm{dc}$ buses for which they are designed and with the manufacturer's name or trademark in such a manner so as to be visible after installation, without disturbing the interior parts or wiring.

Question 69

Service-entrance cables shall be supported by straps or other approved means within 12 in. of every service head, gooseneck, or connection to a raceway or enclosure and at intervals not exceeding _________in.

Question 70

The ampacity of capacitor circuit conductors shall not be less than _________of the rated current of the capacitor.

Question 71

\(A(n) _________ is defined as the connection between the grounded circuit conductor and the supply-side bonding jumper, or the equipment grounding conductor, or both, at a separately derived system.

Question 72

If the vertical rise is greater than_________ $\mathrm{ft}, 250 \mathrm{kcmil}$ copper conductors in vertical raceways shall be supported.

Question 73

Each critical-care area patient bed location shall be provided with a minimum of _________receptacle(s).

Question 74

A receptacle outlet shall be installed at each kitchen wall countertop space that is_________ in. or wider.

Question 75

Covers of outlet boxes and conduit bodies having holes through which flexible cord pendants may pass shall be provided with approved _________or shall have smooth, well-rounded surfaces on which the cord may bear.

Question 76

Internal parts of electrical equipment, including busbars, wiring terminals, insulators, and other surfaces, shall not be_________ by foreign materials such as paint, plaster, cleaners, abrasives, or corrosive residues.

Question 77

Interior metal water piping that is electrically continuous with a metal underground water pipe electrode and is located not more than_________ $\mathrm{ft}$ from the point of entrance to the building shall be permitted to extend the connection to the grounding electrode(s).

Question 78

In commercial garages, lamps and lampholders for fixed lighting that is located over lanes through which vehicles are commonly driven shall be located no less than_________ $\mathrm{ft}$ above the floor level.

Question 79

Circuit conductors between the final overcurrent device protecting the circuit and the outlet(s) is called $a(n)$ _________

Question 80

In any anesthetizing area, all metal raceways and metal-sheathed cables, and all normally non-currentcarrying conductive portions of fixed electric equipment, shall be_________