IBEW / Electrical Training Alliance Aptitude Test Guide

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Many IBEW/NECA electrical apprenticeship programs use an aptitude test battery associated with the Electrical Training Alliance. Candidates and local notices often call it the IBEW aptitude test, the NJATC aptitude test (legacy naming), or the Electrical Training Alliance aptitude test. The battery is an apprenticeship screening tool focused mainly on algebra and functions plus reading comprehension. It is not a journey-level electrical license exam and it is not a mechanical aptitude test by default.

Local Joint Apprenticeship and Training Committees (JATCs) control application windows, minimum qualifications, whether the battery is required, qualifying scores, interviews, ranking, and placement. Do not treat one local’s rules as universal. This page sits under the Mechanical Aptitude Tests hub because many candidates find it while researching trade aptitude pathways, even though the core battery is math and reading.

The practice questions later on this page are original educational exercises. They are not official questions from IBEW, NECA, the Electrical Training Alliance, NJATC, any local JATC, or JobTestPrep.

Key Takeaway

National sample materials describe a two-part aptitude battery. Local JATCs still set eligibility, cut scores, retest waits, and interview rules. Always follow your local announcement.

What the Aptitude Battery Covers

Electrical Training Alliance sample application materials describe a test battery that takes about two and a half hours and includes:

Aptitude battery sections described on Electrical Training Alliance sample apprenticeship materials

Section	Items	Minutes
Algebra and Functions	33	46
Reading Comprehension	36	51

Source: Electrical Training Alliance sample page on applying for apprenticeship. A short break between sections is described on those materials. Previous electrical work knowledge is not required according to the sample Q&A. Calculators are not permitted on the sample guidance reviewed for this update.

Local JATC Variation

Minimum age, education, transcript, algebra prerequisites, drug testing, physicals, background checks, and driver’s license rules can vary by local program. Some materials describe a three-month (90-day) wait before a first retest and a six-month rule after subsequent retakes. Other local pages describe different waiting periods. Treat retest language as local-policy sensitive and verify with your JATC.

Exact numeric scores are often not provided to candidates. Sample materials state that applicants are informed whether they received a qualifying score. Interview ranking and eligibility-list duration are also local-process controlled.

NJATC Legacy Naming

NJATC is legacy terminology still seen in older documents and third-party guides. Current program branding commonly uses Electrical Training Alliance. Candidate invitations may use any of these labels. Match the wording on your local notice.

Optional Third-Party Practice

After you confirm your local JATC requirements, optional third-party practice can help some candidates review algebra, functions, and reading under timed conditions. The linked provider offers a free IBEW-style aptitude practice resource and may also present optional paid preparation. It is third-party practice rather than an official Electrical Training Alliance assessment, so compare its algebra and reading coverage with the instructions from your local JATC.

Try an IBEW aptitude practice resource. JobTestPrep is not IBEW, NECA, the Electrical Training Alliance, or your local JATC.

IBEW Aptitude Test Practice Questions

This practice set includes 35 IBEW-style questions.

Recommended timing:

35 questions
35 minutes

For a harder timed drill:

35 questions
25 minutes

Answer each question before reading the explanation.

Section 1: Arithmetic and Fractions

Question 1: Fractions

What is:

3/4 - 1/4

• A. 1/4
• B. 1/2
• C. 2/4
• D. 1

Answer and Explanation

Correct answer: B. 1/2

Subtract the numerators because the denominators are the same:

3/4 - 1/4 = 2/4
2/4 = 1/2

Question 2: Decimal Conversion

What is 0.75 as a fraction?

• A. 1/4
• B. 1/3
• C. 1/2
• D. 3/4

Answer and Explanation

Correct answer: D. 3/4

Convert the decimal:

0.75 = 75/100
75/100 = 3/4

Question 3: Percent

What is 15% of 200?

• A. 15
• B. 20
• C. 30
• D. 45

Answer and Explanation

Correct answer: C. 30

Use:

15% = 0.15
0.15 × 200 = 30

Question 4: Ratio

A class has electricians and helpers in a ratio of 3:2. If there are 25 people total, how many are electricians?

• A. 10
• B. 12
• C. 15
• D. 20

Answer and Explanation

Correct answer: C. 15

Total ratio parts:

3 + 2 = 5

Each part is:

25 ÷ 5 = 5

Electricians:

3 × 5 = 15

Question 5: Unit Conversion

How many inches are in 7 feet?

• A. 72
• B. 78
• C. 84
• D. 96

Answer and Explanation

Correct answer: C. 84

There are 12 inches in 1 foot.

7 × 12 = 84

Section 2: Algebra

Question 6: Solve for x

Solve:

x - 9 = 14

• A. 5
• B. 14
• C. 21
• D. 23

Answer and Explanation

Correct answer: D. 23

Add 9 to both sides:

x = 14 + 9
x = 23

Question 7: Linear Equation

Solve:

4x = 36

• A. 6
• B. 8
• C. 9
• D. 12

Answer and Explanation

Correct answer: C. 9

Divide both sides by 4:

x = 36 ÷ 4
x = 9

Question 8: Two-Step Equation

Solve:

5x + 3 = 28

• A. 4
• B. 5
• C. 6
• D. 7

Answer and Explanation

Correct answer: B. 5

Subtract 3:

5x = 25

Divide by 5:

x = 5

Question 9: Negative Numbers

Solve:

x + 6 = -2

• A. -8
• B. -4
• C. 4
• D. 8

Answer and Explanation

Correct answer: A. -8

Subtract 6 from both sides:

x = -2 - 6
x = -8

Question 10: Expression Evaluation

If x = 5, what is:

2x + 7

• A. 10
• B. 12
• C. 15
• D. 17

Answer and Explanation

Correct answer: D. 17

Substitute x = 5:

2(5) + 7 = 10 + 7 = 17

Section 3: Functions and Formula Reasoning

Question 11: Function Evaluation

If:

f(x) = 3x - 4

What is f(6)?

• A. 12
• B. 14
• C. 18
• D. 22

Answer and Explanation

Correct answer: B. 14

Substitute 6 for x:

f(6) = 3(6) - 4
f(6) = 18 - 4
f(6) = 14

Question 12: Function Evaluation

If:

g(x) = x² + 2

What is g(4)?

• A. 8
• B. 12
• C. 16
• D. 18

Answer and Explanation

Correct answer: D. 18

Substitute 4 for x:

g(4) = 4² + 2
g(4) = 16 + 2
g(4) = 18

Question 13: Formula Rearrangement

If:

V = I × R

Which formula solves for R?

• A. R = V × I
• B. R = V ÷ I
• C. R = I ÷ V
• D. R = V + I

Answer and Explanation

Correct answer: B. R = V ÷ I

Start with:

V = I × R

Divide both sides by I:

R = V ÷ I

Question 14: Slope Concept

A line rises 6 units and runs 3 units. What is the slope?

• A. 1/2
• B. 2
• C. 3
• D. 6

Answer and Explanation

Correct answer: B. 2

Use:

Slope = rise ÷ run
Slope = 6 ÷ 3
Slope = 2

Question 15: Word Problem

A technician earns $24 per hour and works 8 hours. How much does the technician earn before deductions?

• A. $144
• B. $172
• C. $192
• D. $240

Answer and Explanation

Correct answer: C. $192

Use:

24 × 8 = 192

Section 4: Number Series

Question 16: Simple Number Series

What comes next?

4, 8, 12, 16, ?

• A. 18
• B. 20
• C. 24
• D. 32

Answer and Explanation

Correct answer: B. 20

The pattern increases by 4.

4, 8, 12, 16, 20

Question 17: Multiplication Pattern

What comes next?

2, 6, 18, 54, ?

• A. 72
• B. 108
• C. 162
• D. 216

Answer and Explanation

Correct answer: C. 162

Each number is multiplied by 3.

54 × 3 = 162

Question 18: Alternating Pattern

What comes next?

3, 6, 4, 8, 6, 12, ?

• A. 8
• B. 10
• C. 14
• D. 24

Answer and Explanation

Correct answer: A. 8

The sequence is built in pairs:

3, 6
4, 8
6, 12

In each pair, the second number is double the first.

The first numbers are:

3, 4, 6, 8

The intended next number is 8.

Question 19: Subtraction Pattern

What comes next?

50, 45, 40, 35, ?

• A. 25
• B. 30
• C. 32
• D. 40

Answer and Explanation

Correct answer: B. 30

The pattern decreases by 5.

50, 45, 40, 35, 30

Question 20: Square Numbers

What comes next?

4, 9, 16, 25, ?

• A. 30
• B. 32
• C. 36
• D. 49

Answer and Explanation

Correct answer: C. 36

These are square numbers:

2² = 4
3² = 9
4² = 16
5² = 25
6² = 36

Section 5: Reading Comprehension

Read the passage:

Electrical apprentices must develop both classroom knowledge and jobsite habits. Classroom instruction helps apprentices understand theory, code concepts and calculations. On-the-job training helps apprentices apply those concepts safely under supervision. Strong apprentices are expected to follow instructions, ask questions when unsure and use safe work practices consistently.

Question 21: Main Idea

What is the main idea of the passage?

• A. Electrical apprenticeship requires both classroom learning and safe jobsite practice
• B. Apprentices should avoid asking questions
• C. Classroom instruction is unrelated to jobsite work
• D. Safety practices are optional after training

Answer and Explanation

Correct answer: A. Electrical apprenticeship requires both classroom learning and safe jobsite practice

The passage explains that apprentices need classroom knowledge, supervised jobsite training and safe work habits.

Question 22: Detail

According to the passage, on-the-job training helps apprentices:

• A. Apply concepts safely under supervision
• B. Avoid all classroom instruction
• C. Work without instructions
• D. Replace code knowledge completely

Answer and Explanation

Correct answer: A. Apply concepts safely under supervision

The passage directly states that on-the-job training helps apprentices apply concepts safely under supervision.

Question 23: Inference

Based on the passage, what should an apprentice do when unsure?

• A. Ask questions
• B. Guess without checking
• C. Ignore the task
• D. Stop using safe practices

Answer and Explanation

Correct answer: A. Ask questions

The passage says strong apprentices are expected to ask questions when unsure.

Question 24: Vocabulary in Context

In the passage, “consistently” most nearly means:

• A. Occasionally
• B. Regularly and reliably
• C. Secretly
• D. Quickly but carelessly

Answer and Explanation

Correct answer: B. Regularly and reliably

The passage says apprentices should use safe work practices consistently, meaning regularly and reliably.

Question 25: Supporting Detail

Which skill is mentioned in the passage?

• A. Following instructions
• B. Painting walls
• C. Operating aircraft
• D. Welding only underwater

Answer and Explanation

Correct answer: A. Following instructions

The passage states that strong apprentices are expected to follow instructions.

Section 6: Electrical and Mechanical Basics

Question 26: Closed Circuit

A light turns on when the circuit is:

• A. Closed
• B. Open
• C. Broken
• D. Removed

Answer and Explanation

Correct answer: A. Closed

A closed circuit provides a complete path for current to flow.

Question 27: Resistance

Resistance is:

• A. Opposition to current flow
• B. The length of conduit only
• C. A type of hammer
• D. Compressed air

Answer and Explanation

Correct answer: A. Opposition to current flow

Resistance limits or opposes current flow.

Question 28: Gear Direction

Gear A touches Gear B. Gear A turns clockwise. Which direction does Gear B turn?

• A. Clockwise
• B. Counterclockwise
• C. It does not move
• D. It moves upward

Answer and Explanation

Correct answer: B. Counterclockwise

Touching gears rotate in opposite directions.

Question 29: Lever

A longer wrench helps loosen a tight bolt because it:

• A. Increases torque
• B. Removes the bolt’s mass
• C. Stops all force
• D. Eliminates the need for effort

Answer and Explanation

Correct answer: A. Increases torque

A longer wrench increases the distance from the pivot, which increases torque.

Question 30: Pressure

If the same force is applied over a smaller area, pressure:

• A. Increases
• B. Decreases
• C. Becomes zero
• D. Turns into voltage

Answer and Explanation

Correct answer: A. Increases

Use:

Pressure = Force ÷ Area

A smaller area creates higher pressure when force stays the same.

Section 7: Safety and Practical Reasoning

Question 31: Damaged Cord

An extension cord has exposed wires. What should be done?

• A. Remove it from service according to safety procedure
• B. Use it only for a few minutes
• C. Use it only in wet locations
• D. Ignore it if the tool still runs

Answer and Explanation

Correct answer: A. Remove it from service according to safety procedure

Exposed wires can cause shock, burns or fire hazards.

Damaged cords should not be used.

Question 32: Lockout

Before servicing electrical equipment, the safest general step is to:

• A. Disconnect or lock out power according to procedure
• B. Increase voltage
• C. Touch conductors by hand
• D. Remove insulation

Answer and Explanation

Correct answer: A. Disconnect or lock out power according to procedure

Electrical equipment should be made safe before service.

Follow official safety procedures.

Question 33: Tool Use

Which tool is best for measuring conduit length?

• A. Tape measure
• B. Hammer
• C. Paintbrush
• D. Pliers

Answer and Explanation

Correct answer: A. Tape measure

A tape measure is used to measure length or distance.

Question 34: Safe Work Habit

Which behavior is safest when instructions are unclear?

• A. Ask for clarification
• B. Guess and proceed quickly
• C. Ignore the instructions
• D. Disable safety equipment

Answer and Explanation

Correct answer: A. Ask for clarification

When instructions are unclear, asking for clarification helps prevent mistakes and hazards.

Question 35: Correct Tool

Why is it important to use the correct tool?

• A. It improves safety and reduces damage
• B. It always makes the job slower
• C. It removes the need for training
• D. It makes every task electrical

Answer and Explanation

Correct answer: A. It improves safety and reduces damage

The correct tool helps prevent injury, tool damage and workpiece damage.

IBEW Aptitude Test Answer Key

Question	Topic	Correct Answer
1	Fractions	B
2	Decimals	D
3	Percent	C
4	Ratio	C
5	Unit conversion	C
6	Algebra	D
7	Algebra	C
8	Algebra	B
9	Negative numbers	A
10	Expression	D
11	Function	B
12	Function	D
13	Formula rearrangement	B
14	Slope	B
15	Word problem	C
16	Number series	B
17	Number series	C
18	Alternating pattern	A
19	Number series	B
20	Square numbers	C
21	Reading main idea	A
22	Reading detail	A
23	Reading inference	A
24	Vocabulary	B
25	Supporting detail	A
26	Closed circuit	A
27	Resistance	A
28	Gear direction	B
29	Lever / torque	A
30	Pressure	A
31	Safety	A
32	Lockout	A
33	Measurement	A
34	Safe work habit	A
35	Tool use	A

How to Prepare for the IBEW Aptitude Test

Read your local JATC application packet completely. Confirm whether the aptitude battery is required. Review algebra and functions, including equations and related reasoning, and practise careful reading of passages. Use the Electrical Training Alliance sample materials when available. Practise without a calculator if your local rules disallow one. Complete the original questions below, then add timed drills. Arrange accommodations through the local process before test day when needed. Bring required photo ID. Do not treat this page as electrical trade instruction or unsafe work guidance.

Common Mistakes

Candidates often assume every local uses identical cut scores and retest waits, prepare only for mechanical aptitude when the battery is math and reading, bring a calculator when it is not allowed, or treat third-party practice as official Alliance content.

Official Resources

• Electrical Training Alliance - Applying for Apprenticeship (sample)
• Electrical Training Alliance - Preparing for the Test (sample)
• Your local JATC or AJATC announcement

When your invitation covers several skill areas, broader Assessment test preparation can support mixed review before test day.

For ranked-response or work-style sections, mechanical aptitude preparation may also be useful when you need extra drills under time pressure.

Related Internal Guides

• Mechanical Aptitude Tests
• Industrial Maintenance Test
• Ramsay Mechanical Aptitude Test (MAT-5)

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