Electrical Training Aptitude Test

Practice Electrical Training Aptitude Test

The Electrical Training Aptitude Test, also known as the IBEW Aptitude Test (NJATC), is a standardized assessment used by the International Brotherhood of Electrical Workers (IBEW) and the National Joint Apprenticeship and Training Committee (NJATC) to evaluate the aptitude and skills of individuals seeking to enter an electrical apprenticeship program.

The test consists of various question types that assess different aspects of a candidate’s aptitude and knowledge in areas relevant to the electrical industry. Let’s explore some common question types that may be found in the IBEW Aptitude Test:

  1. Reading Comprehension: This section assesses your ability to understand written information related to electrical concepts, safety guidelines, instructions, and workplace procedures. You may be asked to read passages and answer questions based on the given information.
  2. Numerical Reasoning: This section tests your ability to work with numbers, perform basic calculations, and analyze numerical data. Questions may involve arithmetic operations, fractions, decimals, percentages, ratios, and algebraic equations.
  3. Algebra and Functions: This section evaluates your understanding of algebraic principles and your ability to solve equations, manipulate variables, and identify patterns in mathematical functions.
  4. Mechanical Concepts: This section focuses on assessing your understanding of basic mechanical principles, such as gears, pulleys, levers, simple machines, and mechanical advantage.
  5. Spatial Reasoning: This section examines your ability to visualize and mentally manipulate two- and three-dimensional objects and their spatial relationships. Questions may involve identifying patterns, rotations, reflections, and assembly of objects.
  6. Electrical Concepts: This section tests your knowledge of fundamental electrical concepts, including electrical circuits, Ohm’s law, voltage, current, resistance, power, and basic electrical calculations.
  7. Tools and Measurement: This section assesses your familiarity with common tools and measuring devices used in the electrical trade, such as multimeters, voltmeters, ammeters, and other hand tools.

Free Question

Here’s a free sample question that reflects the type of content you might encounter in an electrical aptitude test:


A circuit consists of a 12-volt battery connected to a resistor. The current flowing through the circuit is measured as 2 amperes. What is the value of the resistance in the circuit?

A) 6 ohms
B) 10 ohms
C) 14 ohms
D) 24 ohms

In this question, you are given the voltage (12 volts) and the current (2 amperes) in a circuit. To calculate the resistance, you can use Ohm’s law, which states that resistance (R) is equal to voltage (V) divided by current (I). So, to find the resistance (R), divide the given voltage (12 volts) by the current (2 amperes).


Resistance (R) = Voltage (V) / Current (I)
Resistance (R) = 12 volts / 2 amperes
Resistance (R) = 6 ohms


Which of the following is the SI unit of electrical resistance?

A) Ampere (A)
B) Volt (V)
C) Watt (W)
D) Ohm (Ω)


If a circuit has a voltage of 24 volts and a resistance of 6 ohms, what is the current flowing through the circuit?

A) 2 amperes
B) 4 amperes
C) 6 amperes
D) 10 amperes


A motor has a power rating of 500 watts and operates at a voltage of 120 volts. What is the current consumed by the motor?

A) 4.17 amperes
B) 41.7 amperes
C) 500 amperes
D) 12,000 amperes


A wire with a resistance of 8 ohms is connected in parallel with another wire of resistance 12 ohms. What is the equivalent resistance of the combination?

A) 3 ohms
B) 5 ohms
C) 8 ohms
D) 20 ohms

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