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NCCER ELECTRICAL LEVEL 1 MOD 4 ELECTRICAL THEORY 2025: EXAMS QUESTIONS AND ANSWERS., Exams of Electronics engineering

Chamberlain College of NursingElectronics engineering

NCCER ELECTRICAL LEVEL 1 MOD 4 ELECTRICAL THEORY 2025: EXAMS QUESTIONS AND ANSWERS.

Typology: Exams

2025/2026

Available from 01/13/2026

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P a g e | 1
NCCER ELECTRICAL LEVEL 1 MOD 4
ELECTRICAL THEORY 2025: EXAMS
QUESTIONS AND ANSWERS.
1. Kirchhoff's voltage law states that the algebraic sum of the
voltages around any closed current path is ________. - correct
answer - zero
2. Two 24Ω resistors are in parallel, and a 42Ω resistor is in series
with the combination. When 78V is applied to the three
resistors, the voltage drop across the 42Ω resistor is about
____________. - correct answer - 60.5V
3. What is the total resistance of three resistors in parallel with
values of 2 ohms, 8 ohms, and 14 ohms? - correct answer -
1.44ohms
4. What is the resistance of a light bulb that uses 15 watts of
power when placed across a 15volt battery? - correct answer -
15
pf3
pf4
pf5

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NCCER ELECTRICAL LEVEL 1 MOD 4

ELECTRICAL THEORY 2025: EXAMS

QUESTIONS AND ANSWERS.

  1. Kirchhoff's voltage law states that the algebraic sum of the voltages around any closed current path is ________. - correct answer - zero
  2. Two 24Ω resistors are in parallel, and a 42Ω resistor is in series with the combination. When 78V is applied to the three resistors, the voltage drop across the 42Ω resistor is about ____________. - correct answer - 60.5V
  3. What is the total resistance of three resistors in parallel with values of 2 ohms, 8 ohms, and 14 ohms? - correct answer - 1.44ohms
  4. What is the resistance of a light bulb that uses 15 watts of power when placed across a 15volt battery? - correct answer - 15
  1. The statement that total current entering a point must equal total current leaving that point best describes _____. - correct answer - Kirchhoff's current law
  2. A circuit diagram shows that the circuit divides into separate branches and there are also series loads. This is a(n) _____. - correct answer - series-parallel circuit
  3. The total resistance of four resistors in parallel with values of 3, 10, 25, and 50 ohms is _____. - correct answer - 2.03 ohms
  4. According to Kirchhoff's voltage law, the total voltage drop in a circuit is equal to the _____. - correct answer - voltage of the power source
  5. A ______________ contains only one path for current flow. - correct answer - series circuit
  6. _____________ contains two or more parallel paths through which current can flow. - correct answer - Parallel circuits
  1. Two branches of a circuit (R1 and R2) across a 120V power line draw a total line current of 30A. Branch R1 takes 15A. What is the current I2 in branch R2? - correct answer - 15A
  2. Who stated that the current entering a point must equal the total current leaving that point? - correct answer - Kirchoff
  3. In a circuit with an applied voltage of 10V and voltage drops of E1 = 2V, E2 = 5V, and E3 = ?, the value of E3 must be____________. - correct answer - 3V
  4. You can use Ohm's law to find the value of each branch current in a parallel circuit. - correct answer - True
  5. Find the total resistance in a series circuit with three resistances of 100Ω, 20Ω, and 30Ω. - correct answer - 60
  6. In a parallel circuit, the voltage across each path is equal to the _____________. - correct answer - applied voltage
  1. A resistor of 32Ω is in parallel with a resistor of 36Ω, and a 54Ω resistor is in series with the pair. When 350V is applied to the combination, the current through the 54Ω resistor is ____________. - correct answer - 4.93A
  2. A 242Ω resistor is in parallel with a 180Ω resistor, and a 420Ω resistor is in series with the combination in a 27V circuit. A current of 22mA flows through the 242Ω resistor. The current through the 180Ω resistor is _____________. - correct answer
    • 29.6mA
  3. Which statement is not correct relative to Kirchhoff's current law? - correct answer - Kirchhoff's laws apply to current only.