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The definition of a series circuit is___

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

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

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

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

an __ is used to measure current

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

Which option describes an improper use of a wrench?

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

To prevent injuries, ladders not ni use should

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

When transporting a load, it should be kept _

A short circuit has very little or no

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Current meters are connected

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

Rigid metal conduit smaller than trade size

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

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

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

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

Materials that are easily magnetized are called_

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Raceways shall be provided with and contraction.

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

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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.

An electrical shock occurs when

Which of the following si the best conductor of electricity?

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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

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

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

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The resistance of wire si

Connected to establish electrical continuity and conductivity is called

Operating a light bulb below its rated voltage will

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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.

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

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

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

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

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

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

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

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.

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

The opposition to current flow through a material si called.

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?

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

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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

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

Where is rigid PVC conduit not permitted to be used?

When lifting an object, it si best to

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

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

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

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.

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

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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?

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

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

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

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%?

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

The combined lengths of the blade and screwdriver.

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

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

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

How is a voltmeter connected to a component?

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

According to electron theory, electrical current flows from

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

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

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

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

Any bend less than 90° si caled a(n)

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

When current flow is increased through a conductor the___

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

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

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

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