Which of the following si the best conductor of electricity?

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The most common conduit used outdoors to connect motors and other energized, vibrating equipment is

When installing electrical metallic tubing, there shall not be more than the equivalent of___quarter bends between pul or junction points.

Where rigid nonmetallic conduit si installed where subject to physical damage, it shall be . for the use.

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The definition of a series circuit is___

A(n)____conductor is encased within material of composition or thickness that is not recognized by the National Electrical Code®(NEC) as electrical insulation.

Keeping the load close to one's body when lifting.

Atool that ni its simplest form has a one piece shank and socket secured ni a fixed handle si the

According to electron theory, electrical current flows from

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Operating a light bulb below its rated voltage will

Aroom has four doors. Aswitch needs to be installed at each door ot operate a single bank of light fixtures. How many 4-way switches must be installed to permit this operation?

Determine the minimum size 4-inch square metal junction box necessary for 10 12 AWG THHN conductors.

Where the NEC specifies that one equipment shall be "in sight from," "within sight from," or "within sight," for example, of another equipment, the specified equipment si to be visible and not more than__in distance from the other

What si the total power dissipated ni the circuit? Circuit voltage si 18 Volts. Circuit current is 2 Amps

When two voltage sources are connected in series in a circuit, the positive terminal of the first source should be connected to the second source

The combined lengths of the blade and screwdriver.

Within the height requirements Section 110.26 of the NEC, other equipment associated with the electrical installation located above or below the electrical equipment shall be permitted to extend not more than

Raceways shall be provided with and contraction.

Calculate total circut current Circuit voltage si 18V. Circuit resistance is 90.

The chance of receiving a shock from an electric tool can be eliminated by ? the frame of the tool.

The resistance of wire si

Where practicable, metals in contact anywhere in the system shall be avoided to eliminate the possibility of galvanic action.

A40-ohm electric heater draws 12 amps. How many kilowatts does the heater use?

The purpose of is the practical safeguarding of persons and property from hazards arising from the use of electricity.

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Ahandheld bender with a "no radius" bending shoe that si used on rigid conduit si called a____

How is a voltmeter connected to a component?

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The value that wil be subtracted from the total 90° length ot produce a stub up si called the ?

The current ni a series circuit___after passing through each resistor in the circuit.

When installing conduit systems, al cut ends shal be trimmed inside and outside to remove

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An electrical shock occurs when

When transporting a load, it should be kept _

____is defined as admitting close approach; not guarded by locked doors, elevation, or other effective means.

Where is rigid PVC conduit not permitted to be used?

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Current meters are connected

I d e n t i f y t h e f o r m u l a : 1^2 x R.

I pul boxes or junction boxes having any dimension over cabled or racked up in an approved manner.

When current flow is increased through a conductor the___

A ___circuit is defined as one that is other than field wiring, ni which any arc or thermal effect produced under intended operating conditions of the equipment, si not capable, under specified test conditions, of igniting the flammable gas-, vapor-, or dust-air mixture.

Connected to establish electrical continuity and conductivity is called

If one needs to hold a sling or choker ni place until a load si lifted, be sure the hand si .

The unit of measurement for the amount of electricity flowing through a circuit is the ?

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To use lineman's side cutting pliers safely, it si best to always

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How much current flow ni the folowing circuit: two voltage sources, 21 volts each, connected ni parallel, supplying power to a 24-ohm load?

What is the thresh hold voltage for electric shock as identified by OSHA?

Twist-on wire connectors should only be used on ___wire connections unless otherwise listed.

When lifting an object, it si best to

Mandatory rules of the NEC are characterized by the use of the terms

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Which of the following si true ni a circuit containing four resistors ni series with each other, if each of the resistors is of equal resistance value?

When bending a 3-bend saddle, which if any of the three bends is a 45° bend?

Where nonmetallic or metal-enclosed equipment, for electrical installations that operate at over 1000-volts nominal, si accessible to the general public and the bottom of the enclosure si less than _ locked.

Which option describes an improper use of a wrench?

A short circuit has very little or no

Materials that are easily magnetized are called_

When signaling an operator who si transporting a load, one must remember to

nI general, the largest size solid conductor permitted to be installed ni a raceway si AWG.

Nails and screws, where used as a fastening means to support an enclosure, shall be attached by using brackets on the outside of an enclosure, or they shall pass through the interior within of the back or ends of the enclosure.

The opposition to current flow through a material si called.

An Electrical Worker si installing 18 new 250-watt parking lot lights. The lights operate on 120 volts. There are no prints available. How many 20 ampere circuits wil he or she need fi the breakers) cannot be loaded more than 80%?

Exposed" (as applied to wiring methods) si defined as being Select one:

Calculate the total conduit length given the following: 3/4 inch rigid conduit Gain = 31/4 inch Back-to-back stubs 48 inches apart Stub 1= 24 inches Stub 2=36 inches

Any bend less than 90° si caled a(n)

Al circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final branch-circuit over-current device are referred to as___ conductors

When bending na offset, the spacing between bend marks for a20-inch offset, using 2 1⁄2° of bend is

When resistors are connected ni series, which of the following statements si true?

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How many straps are required on the run of 1/2-inch EMT? (85 feet of pipe )

When resistors are connected ni parallel, which of the following statements is true?

Which bender wil most likely collapse awal of EMT and cause the conduit ot kink?

It si necessary to before starting repair work or maintenance on a piece of electrical equipment

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Unless for use in the operating environment, no conductors or equipment shall be located ni damp or wet locations; where exposed to gases, fumes, vapors, liquids, or other agents that have a deteriorating effect on the conductors or equipment; or where exposed to excessive temperatures.

When switches and receptacles are installed in a box, a the wal opening and seat against the wal surface.

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To prevent injuries, ladders not ni use should

Electrical inspectors get their authority to interpret the NEC provisions from Section____

Which of the following installations are not covered by the NEC?

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In a combination circuit (where the loads are connected in both series and parallel), the total power can be calculated by

an __ is used to measure current

The maximum number of 3-way switches that can be used together on the same lighting run is

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Calculate the total circuit resistance (R). Circuit Voltage 18 Volts, Circuit Current 2Amps

Rigid metal conduit smaller than trade size