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Journeyman Electrician Exam 100% Accurate, Exams of Electrical Engineering

University of Mississippi Medical CenterElectrical Engineering

A comprehensive study guide or practice exam for journeyman electricians. It covers a wide range of electrical concepts, principles, and equipment, including topics such as electromagnets, photovoltaic cells, dc motors, capacitors, transformers, circuits, and more. Detailed explanations and answers to numerous multiple-choice questions, making it a valuable resource for electricians preparing for their journeyman certification exam. The level of detail and breadth of topics covered suggest this document could be useful for both students and practicing electricians looking to review and reinforce their electrical knowledge.

Typology: Exams

2023/2024

Available from 10/26/2024

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Journeyman Electrician Exam 100%
Accurate
And advantage of an electromagnet over a permanent magnet is - ANSWERAn electromagnet can be
switched on and off
An excellent diffuser surface is one that - ANSWERScatters light uniformly in all directions
Light is converted into electricity - ANSWERIn a photovoltaic cell
The rotating part of a DC motor is known as - ANSWERArmature
A device used to pull wires through a conduit is called - ANSWERFish tape
In making a resistance test, remember that the resistance of a short circuit is -
ANSWERApproximately zero
To increase current capacity, battery cells are connected in - ANSWERParallel
The hot resistance of an incandescent lamp is approximately how many times it's cold resistance -
ANSWER10
The proper way of measuring and unknown voltage with a multi-tester is to - ANSWERStart
measuring at the highest range
A capacitor stores what? - ANSWERA charge
What has the lowest dielectric strength - ANSWERPaper
A form of air switch in which the moving element is a hinged blade wedge between stationary
contact blades when closed is a what switch - ANSWERKnife
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Journeyman Electrician Exam 100%

Accurate

And advantage of an electromagnet over a permanent magnet is - ANSWERAn electromagnet can be switched on and off An excellent diffuser surface is one that - ANSWERScatters light uniformly in all directions Light is converted into electricity - ANSWERIn a photovoltaic cell The rotating part of a DC motor is known as - ANSWERArmature A device used to pull wires through a conduit is called - ANSWERFish tape In making a resistance test, remember that the resistance of a short circuit is - ANSWERApproximately zero To increase current capacity, battery cells are connected in - ANSWERParallel The hot resistance of an incandescent lamp is approximately how many times it's cold resistance - ANSWER The proper way of measuring and unknown voltage with a multi-tester is to - ANSWERStart measuring at the highest range A capacitor stores what? - ANSWERA charge What has the lowest dielectric strength - ANSWERPaper A form of air switch in which the moving element is a hinged blade wedge between stationary contact blades when closed is a what switch - ANSWERKnife

If a bare live conductor is touched accidentally, the severity of the electric shock is determined primarily by - ANSWERThe contact resistance between the bare wire in the person at the point of contact Steel is hard to magnetize because of its - ANSWERLow permeability A repulsion motor is equipped with a - ANSWERCommutator When the temperature of a copper wire is raised, the resistance will - ANSWERincrease The capacitor in a capacitor-start induction-run AC motor is connected in series with what winding? - ANSWERStarting Defined as the shortest distance measured between a point on the top surface of any direct buried conductor, cable, conduit and a top surface of finish grade - ANSWERCover An ohmmeter consists of a meter movement in series with what? - ANSWERA battery Greece is a lubricant that is basically a combination of what? - ANSWEROil and soap The continuity of a coil of winding may be determined by measuring the resistance of the coil. If the resistance measured is infinite, the coil winding is what? - ANSWEROpen A three-way switch is equivalent to what kind of switch? - ANSWERSPDT The main reason that electrical appliances are connected in parallel rather than series is? - ANSWERIt makes the operation of each appliance independent with each other The voltage per turn of the primary of a transformer is ________the voltage per turn of the secondary - ANSWERThe same as And open resister when checked with an ohmmeter reads - ANSWERInfinite

In a parallel circuit, the total resistance is? - ANSWERSmaller than the smallest resistance in the combination What is A machine used to transform mechanical energy into electrical energy? - ANSWERGenerator What is a material with atoms in which the electrons tend to stay in their orbits? - ANSWERInsulator Hysteresis losses are caused by? - ANSWERhigh frequency alternating current in a coil with an iron core In magnetic and electric circuit analogy, magnetic flux is the analog of what? - ANSWERCurrent A device that reverses the magnetic field polarity to keep a DC motor rotating - ANSWERCommutator The resistance of a wire is directly proportional to the what and inversely proportional to the cross- sectional area? – ANSWERLength In a series circuit with unequal resistances - ANSWERThe highest resistance has the highest voltage The kilowatt hour meter can be classified as what kind of instrument? - ANSWERRecording Transformer cores are built up from laminations rather than from solid metal so that what happens?

  • ANSWEREddy current loss is reduced An instrument used to check the motor shaft alignment is called what? - ANSWERDial indicator The energy in a battery cell depends mainly on what? - ANSWERIt's physical size Locknuts are sometimes used in making electrical connections on studs. In these cases the purpose of the locknut is to what - ANSWERPreevent the connection from loosening under vibration

To cut rigid conduit you should do this - ANSWERUse a hacksaw and Ream the ends In the course of normal operation the instrument which will be at least effective in indicating that a generator may overheat because it is overloaded, is - ANSWERA volt meter Two switches in one box under one face plate is called what? - ANSWERTwo gang switch A conduit body is this - ANSWERA "LB" or "T" or similar fitting A dwelling unit is - ANSWERA single unit, providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation Enclosed means, surrounded by what which will prevent persons from accidentally contacting energized parts - ANSWERA wall, a fence, or housing or case Where the conductor material is not specified in the code, the conductors are assumed to be what? - ANSWERCopper The voltage lost across a portion of a circuit is called the - ANSWERVoltage drop In a series circuit this is common - ANSWERCurrent Battery supply what kind of current - ANSWERDirect Electron flow produced by means of applying pressure to a material is called what? - ANSWERPiezoelectricity Raceways shall be provided with this to compensate for thermal expansion and contraction - ANSWERExpansion joints An alternation is what? - ANSWEROne-half cycle