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Journeyman Electrician Exam 2025 With 400
Real Exam Prep Questions and Correct
Verified Answers| Journeyman Electrician
Test 2025 Qs and As (100% Correct)
Assume a resistor has a value of 6 ohms, and it is connected to a 12-V source. When the switch is closed the current rises to ____. a. 0.5 A c. 12 A b. 2 A d. 72 A b If a circuit contains a large amount of resistance and a small amount of inductance, the resistance and impedance will____________________. a. negate each other c. be double b. be nearly the same d. be half b ____ opposes a change in voltage by creating a current flow that opposes the change in voltage. a. Inductance c.
Capacitance b. A bridge d. Dielectric stress c Inductors store energy in a(n) ____. a. magnetic field c. electrostatic field b. capacitor d. magnet a Capacitance is measured in ____. a. coulombs c. henrys b. volts d. farads d A capacitor consists of two conducting surfaces, usually referred to as plates, separated by some type of insulating material, called the ____. a. conductor c. dielectric b. conducting surface
d Frequency has an effect on capacitive reactance because the capacitor charges and discharges ____ at a higher frequency. a. evenly c. faster b. erratically d. slower c In a _____________ capacitor, the capacitance is determined by the manufacturer and parameters set. a. two-flat plate c. trimmer b. variable d. fixed d The electrostatic field in a capacitor has the ability to hold less charge when the volts per mil thickness are ____. a. varying c. more b. zero d. less d
As capacitors are added in series the total C ____. a. increases c. remains the same b. decreases d. becomes erratic b The current in all elements of the series circuit is equal to the ____ current. a. total c. maximum b. minimum d. average a The electron has an electrical charge with a(n) ____ polarity. a. positive c. neutral b. negative d. optical b Atoms have three main parts: ____. a. electron, proton, and isotope c.
d. different from a The unit of electrical power is the ____. a. ohm c. volt b. hertz d. watt d The items needed to generate voltage are a conductor, a magnetic field, and ____ between the conductor and the magnetic field. a. a bridge c. relative placement b. relative motion d. a bond b The ____ value is measured from zero to the highest value obtained in either the positive or the negative direction. a. peak c. peak-to-max b. peak-to-peak d. peak-to-min
a The ____ value is also called the effective value. a. RSE c. RMS b. RME d. EMS c The synchronous speed of a two-pole generator is ____ rpm to maintain 60 Hz. a. 1200 c. 3600 b. 2400 d. 7200 c The property of an electrical component (such as a coil of wire) to induce a voltage into itself as the current through the component changes is known as ____. a. auto-voltage c. auto-inductance b. self-voltage d. self-inductance d The voltage induced in an inductor by the changing magnetic field is known as ____.
resistance d. length c The amount of voltage is directly proportional to the changing amount of ____ in the conductor and inversely proportional to the change in the time that occurs. a. AC current c. inductance b. DC current d. permeability a The rate of change of ____ per second of the changing current will determine the amount of CEMF. a. ohms c. volts b. amps d. henries b The voltage that a coil induces into itself is caused by the characteristic of ____. a. circuit inductance c. self-inductance b. electrical inductance
d. auto-inductance c When inductors are connected in series, the total inductance is the ____ of the inductances of all the inductors. a. sum c. median b. average d. mode a The opposition offered to an AC current will be expressed in the ____ of the coil. a. impedance (A) c. impedance (O) b. impedance (I) d. impedance (Z) d Adding inductors in series with a circuit that already contains inductors will ____ the total inductive reactance of the circuit. a. increase c. nullify b. decrease d. flatten
d. AC c In a(n) ____ circuit, the current leads the voltage by 90 degrees. a. resistive c. variable b. capacitive d. inductive b Resistance and capacitive reactance are 90 degrees out of phase with each other, and these form a right triangle with the impedance, forming the ____. a. longer leg c. hypotenuse b. right angle d. shorter leg c The series RC circuit is similar to the ____ circuit in that it uses the circuit current as the reference. a. parallel RL c. parallel AC b. series RL d. rectifier b
The power factor of a circuit is the ____ of the phase angle. a. tangent c. sine b. arcsine d. cosine d The effects of frequency on a series RC circuit can be analyzed by determining what happens to the ____ of a capacitor. a. AC c. RL b. XC d. ZC b If a circuit is more inductive than capacitive, the current will lag the applied ____. a. henries c. force b. voltage d. ohms b
a. negative c. equal b. positive d. resistive c If the frequency is increased above the resonant frequency, the inductive reactance ____. a. increases c. remains constant b. decreases d. balances out a The watts, or _____________, are found on the horizontal line of the power triangle and can be calculated by current times voltage across the resistive components or by current squared times resistance. a. volt-amps c. true power b. farads d. VARs c As resistors are added in parallel, we are actually adding more paths for current to flow and therefore are actually ____ the total opposition of the circuit.
a. multiplying c. increasing b. dividing d. decreasing d When inductors are connected in parallel, the total inductance can be found using a formula that is similar to the one used for finding total resistance in a(n) ____ circuit. a. closed c. parallel b. open d. series c Because inductance and inductive reactance are ____, the same rules that apply for inductors in parallel are also used to determine inductive reactance in parallel. a. inversely proportional c. opposite b. directly proportional d. parallel b If the total inductance decreases, the total reactance ____. a.
VARs d. branches b True power is measured in ____ and is represented or shown along the horizontal axis because it has a 0-degree angle. a. amps c. watts b. volt-amps d. volts c In ____ circuits that contain both resistance and reactance, the branch currents are out of phase, and the voltage is the reference. a. mixed c. parallel b. ideal d. impedance c A parallel circuit that contains resistance and capacitance is called a(n) ____ circuit. a. RC c. DC b. AC
d. LC a When the capacitors are connected in parallel, the areas of the individual plates are ____. a. divided c. subtracted b. multiplied d. added together d The total resistance in a series circuit is found by ____ the values of the resistors in the circuit. a. subtracting c. multiplying b. adding d. dividing b Capacitors in parallel are calculated similar to inductors and resistors in ____. a. parallel c. series b. angle d. a circuit
