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All phase conductors, and where used, a grounded conductor and all equipment grounding conductors, shall be grouped together when installed in ferrous metal raceways or run through ferrous metal enclosures. Which of the following is the reason for this requirement?
A fuse intended to interrupt current at fault levels shall have what rating based upon available fault current?
A circuit breaker with a slash rating of 480/277 volts, is not permitted to be used for which one of the following circuits?
Which one of the following is the proper connections for a 230/460 volt, three-phase, wye, nine-lead motor for high voltage operation?
Which of the following is not a formula for calculating watts?
In inductive motor circuits, what is the purpose of installing capacitors?
Which one of the following will correct a lagging power factor?
At unity power factor, what is the relationship between voltage and current?
Which one of the following is not a harmonic load?
A circuit has 5 resistors of 20 ohms each connected in series across a 100 volt supply; how much current will flow in the circuit?
What is the ampacity of a copper busbar with cross-sectional dimensions of 1/4” (6.35 mm) x 4” (10.16 mm)?
What is the minimum standard size fuse that may be installed in a 60 ampere disconnect and not require fuse adaptors?
EMT shall be securely fastened within how many feet of an outlet box, junction box, device box, cabinet, conduit body, or other tubing termination?
Where you measure 16 amperes on two of the phases of a three-phase, four-wire, Wye system, and 0 amperes on the third phase, how much current would you expect to measure on the neutral conductor?
What is the ampacity of a #12 THHN copper conductor?
What is the formula for Power, when current and resistance are known?
When running NM-B cable in wood framing members, what is the minimum distance, in inches, permitted from the cable to the front edge of the framing member?
What is the high-leg voltage of a 120/240 volt, three-phase, delta system?
What is the neutral current of a single-phase, three-wire system when the current on Line 1 is 30 amperes, and the current on Line 2 is 20 amperes?
Given two resistors, 40 Ω and 40 Ω, installed in parallel, what is the total resistance?
What is the take-up for a ½” EMT hand bender?
What is the take-up for a ¾” EMT hand bender?
What is the ampacity of a 3/0 THW (TW75) copper conductor?
What is the maximum amount of continuous (calculated) load current that is permitted on a 20 ampere branch circuit?
What is the maximum size grounding electrode conductor required to be installed to a ground rod?
What is the smallest size conductor that is permitted to be installed in parallel?
What is the maximum standard size overcurrent protective device that is permitted to protect a 12-2 NM-B (NMD90) cable?
What is the NEC Code Article (CEC Code Section) number for Grounding and Bonding?
NM-B (NMSC) shall be secured and supported within ____ inches (mm) of a cabinet and supported and secured at intervals not to exceed ____ feet (m).
EMT shall be secured and supported with ____ feet (meters) of a junction box and at intervals not to exceed ____ feet (meters).
A #12 THHN (T90 NYLON) copper insulated conductor is permitted to be installed in a wet location?