A 300 HP, 480-volt 451 amp, 3 phase motor is a Squirrel cage type. If dual element time delay fuses are used, generally they may be rated up to __________ percent of the full load current.

A 300 HP, 480-volt 451 amp, 3 phase motor has 250 KCMIL Copper service conductors. If this service is grounded to a metal water piping system that can be considered an electrode, the minimum size grounding electrode conductor can be a __________.

A 300 HP, 480-Volt 451 amp, 3 phase motor is fed with 2 raceways. The minimum size of the equipment grounding conductor in each raceway shall be a __________ conductor if the Automatic Overcurrent Protective Device is rated at 500.

A 300 HP, 480-volt 451 ampere, 3 phase motor is fed with 1 raceway. The minimum size of the equipment grounding conductor shall be a __________ conductor if the Automatic Overcurrent Protective Device is rated at 500.

A 300 HP, 480-volt 451 ampere, 3 phase motor is fed with 2 raceways. If type USE insulated paralleled conductors with 75 degree C terminations are used, at least __________ AWG sized wires are needed for the ungrounded (hot) conductors.

What is the ampacity needed for a 300 HP, 480-volt, 3 phase motor? This motor will have a continuous duty requiring a 125% rating.

When determining pipe fill requirements, what is the capacity in area of a 1 1/4″ Flexible Metal Conduit (Flex, or FMC) with the typical 40% fill column for over 2 wires?

How many #4 AWG compact THWN/THHN conductors can you install in a ¾ inch trade size Liquidtight Flexible Nonmetallic Conduit (LFNC)?

A Class 2 or 3 remote-control signaling circuit conductor shall not be secured to __________.

A new type solid-state, 120-volt dimmer switch is installed in a junction box and it is also connected with a Class 2 circuit to a central microprocessor for control. The required 1/4″ inch separation for the low and high voltage conductors in the same enclosure can not be maintained when trimming out.

The basic photovoltaic mechanically and electrically grouping of modules is called a(n) __________.

The #8 solid copper bonding conductor for a swimming pool is not required to be connected to the __________.

Article 640 covers equipment and wiring for __________.

Which is not considered an electric vehicle by the NEC?

A feeder to an apartment building supplies power to 2 elevators with a 50% duty cycle. A __________ demand factor shall be applied.

An individual relocatable office partition with a single flexible cord and plug connection to power shall not contain more than __________ 15 ampere, 125-volt receptacle outlets.

A freestanding office partition with outlets can be fed by a single flexible cord if the cord is __________ feet or less.

A freestanding office partition with receptacles can be fed by a single flexible cord if __________.

Because of some fatalities, all portable electric signs shall be __________.

A branch circuit for a sign that includes fluorescents for illumination shall not exceed __________ amperes.

A tenant space in a commercial building with an entrance accessible to customers and pedestrians __________.

If any lights or receptacles are installed above a dressing room table counter in a theater, they shall be controlled by a switch in the __________.

The general wiring method allowed in a theater location is __________.

A gas station is adding Compressed Natural Gas (CNG) to its dispensing island. There is a canopy above this dispenser, including lighting and ignitable vapors, which may become entrapped.

What is the classification of a minor repair garage lubrication pit where oil changes are made but no fuel is dispensed? (There is no air exchange ventilation).

A metal pole supporting a light fixture shall have a handhole not less than __________ to provide access to the terminations.

How many grounded circuit conductors can be connected in a single hole in the neutral bus of a service-entrance panelboard?

The ampacity of a single #10 AWG fixture wire is __________ amperes.

Flexible Metallic Conduit (FMC, Flex) is used for a branch circuit to a motor to provide flexibility because of vibration.

Which is a true statement about strapping and supporting Electrical Metalic Tubing (EMT)?

A Rigid Metal Conduit is field threaded. A standard __________ inch taper per foot shall be used for the cutting die.

An underground Rigid Nonmetallic Conduit (RNC, PVC) feeder is considered a wet location, a #12 AWG Nonmetallic Sheathed Cable (Romex, NM) is to be installed in this raceway.

What is the allowable ampacity of 6, #8 THWN conductors in a conduit when passing through an area with an ambient temperature of 40 degree C (104 degree F) requiring a correction factor application to compensate?

3/0 AWG copper wire requires support in vertical raceways greater than __________ feet.

As a general rule, a conduit can be used to support another conduit if __________.

Landscape lighting is installed to enhance appearance at a commercial building. Type UF cable limited to 24 volts is used. When installed under the parking lot it must be at least __________ inches below finished asphalt.

A 200 ampere service with 2/0 copper service entrance conductors is grounded by running one continuous wire from a metallic piping system, then to 2 ground rods and then to the service neutral bar.

A metal underground water pipe is used as the electrical system’s grounding electrode. It shall be supplemented with __________ more ground rod(s) if the first one has a resistance of more than 25 ohms to ground.

An AC transformer operating at 32 volts is required to be grounded __________.

After a ground rod clamp is installed, it should be accessible and if it is subject to physical damage it shall be protected __________.

Large service conductors are terminated in a gutter where taps are made into disconnects.

A large service terminates in a building gutter where taps are made into disconnects. As a general rule, what is the maximum number of disconnects allowed?

Which is a true statement about a feeder disconnect to another building?

Given that a separate building is supplied by a single branch circuit with an equipment grounding conductor from a common service.

Given that a separate building is supplied by a single branch circuit with an equipment grounding conductor from a common service.

A large feeder is run from one structure to another. It is terminated at the second structure in a gutter where taps are made into disconnects. As a general rule, what is the maximum number of disconnects allowed?

A feeder from one structure is run to another, but first it passes through another 3rd building to get there. It only passes through the 3rd building without any purpose for that structure or load __________.

A barn has an opening for the loft on the second floor. A feeder or a branch circuit can not __________ the entrance to the building opening.

A commercial kitchen has 2 electric ranges, 2 large ovens and one smaller oven. What is the feeder demand factor percent allowed?

A store has an 18 foot wide Show Window. At least __________ receptacle outlet(s) shall be installed above the window.

A 30 ampere branch circuit with one 30 ampere receptacle shall have a maximum load of __________ amperes.

103. Which of these locations requires GFCI protected outlets?

102. Two entrances are required at each end of the working space of large electrical equipment rated __________ amperes or more.

Lighting for a(n) __________ controlled only by automatic means is prohibited.

What is the maximum number of # 12 conductors that can be installed in a 4 11/16″ x 1 1/2″ square junction box?

How many 1/0 THHN compact conductors can you install in a 1 1/2″ Electrical Metallic Tubing (EMT)?

All boxes and enclosures for emergency circuits shall be permanently _______ so they can be easily identified.

In an agricultural building, what type of wiring methods may be used?

At a gasoline dispensing station….

A commercial repair garage shall have…

In a commercial repair garage that services gasoline vehicles with no ventilation…..

Intrinsically safe conductors, raceways, and junction boxes should be identified and colored…

A metal raceway in a Class I Division 2 location shall be bonded…

Rigid Metallic Conduit (RMC) is used in a Class I Division 1 location.

A Class I hazardous location J box…

Generally, which is not a true statement?

What is the ampacity of 2/0 type W cable (cord) with 75º terminations, where it is not installed in a raceway, and not in contact with another conductor?

Electrical Nonmetallic tubing (ENT or blue smurf tube) is permitted…

Liquidtight Flexible Metal Conduit (LFMC, or Sealtight) can be used…

A straight horizontal run of 1/1/2″ Rigid Metal Conduit (RMC) using threaded couplings can be secured every…

In a junction or pull box with any side over ___ feet, all the conductors shall be cabled, laced, or racked up.

In straight pulls, the length of a junction box is not to be less than ___ times the diameter of the largest raceway.

Large conduit bodies like an LB…

Which is a true statement for minimum burial cover requirements under 600 volts, under a parking lot?

Given a total load of 377 amps, with 75 degree terminations, 3 phase in a metal raceway with no neutral conductor, all the 6 parallel conductors are now installed in one raceway and need to be now derated to…

Given a total load of 377 amps, with 75-degree terminations, 3 phase in a metal raceway with no neutral conductor; parallel ____ conductors could be used in 2 separate raceways in a commercial installation for one piece of equipment.

When conductors are ran in parallel and an equipment ground is ran in each conduit, the equipment ground size is…

Given a 3 phase 4 wire 400 amp commercial service, the neutral carries a major portion in harmonics and is considered current carrying requiring derating, the minimum size ungrounded conductors (hots) with 75 degree C terminations is…

2/0 AWG Copper wire installed in a ___ ft. vertical raceway requires support to prevent damage to the wire insulation and terminations.

On a 1000 amp service which is fed by 4 runs of 350 Kcmil Copper, other metal piping systems besides water are available on site and need to be bonded with minimum copper…

Conductors are run in parallel in different raceways fed from an 800-ampere circuit breaker. What is the minimum size equipment-grounding conductor to be run in each conduit?

On a branch circuit with a 50-ampere breaker, what is the minimum size copper equipment grounding conductor required?

If a structure has an installed lightning protection system…

At a separate building supplied from a common service the interior metal water piping system needs to be bonded, this conductor may be bonded to…

What needs to be bonded?

What is the minimum size grounding electrode conductor to building steel when the service entrance conductors are parallel 250 KCMIL copper?

A 500 HP pump service is fed with 1000 Kcmil Copper. The minimum size grounding electrode conductor to a ground rod is…

If made electrodes (ground rods) are to be used for grounding a service….

When a metal underground water pipe is used as an electrode…

A metal piping system is used as a grounding electrode.

The general rule is you need at least 6 inches of free conductor length where it emerges at a junction box.

When using an effectively grounded metal water pipe to ground a separately derived system transformer, as a general rule….

When a grounded (neutral) conductor is ran in 2 raceways in parallel, it shall not be smaller than….

A ________ rated circuit breaker is not required to show its interrupting rating.

Service entrance conductors…

As a general rule, unless an exception is met, when one structure is fed from another…

An outside pole light…

Where it is _____ that 2 dissimilar loads will be used simultaneously, it shall be permissible to omit the smaller of the two in calculating the load in a feeder.

Where there is more than one voltage system at a building, like 480/277 and 120/208, which is a true statement?

Conductors of different systems are installed in the same raceway ( 480/277, 240/120) and each requires a neutral, where the conductors are accessible,