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Apr 29th, 2020

ASVAB Electronics Information Study Guide!

asvab electronics information study guide

ASVAB Electronics Information Study Guide

Electronics Information is not used to calculate your AFQT score. However, for many careers in the US military, it is a must to score well. Here in this ASVAB electronics information study guide, we teach you how to prepare for this exam.

As the name suggests, Electronics Information concerns the flow of electricity and the principles that underpin that flow. If you are unfamiliar with the principles of electricity and how radios and televisions and circuits work, the subject can at first seem rather daunting. But with enough time and study invested, there is no reason why you cannot ace this subtest of the ASVAB exam.

Many candidates will not focus on electronics information, precisely because it is not used to calculate the AFQT enlistment score or it may not be germane to the military career they have chosen. You need to establish to what degree this subtest is relevant to your chosen career and how much time you wish to invest in studying the principles of electricity.

Here, we will learn more about what questions are asked on the exam, the syllabus that gets tested, as well as test taking tips to help you maximize your score on the day of your ASVAB exam.

ASVAB Electronics Information Exam

Depending on whether you are taking the Paper ASVAB or the CAT-ASVAB, you will be asked a different number of ASVAB test questions to be answered in different allotted times. For the EI exam, the figures are as follows:

  • CAT-ASVAB: 15 questions to be answered in 10-minutes
  • Paper ASVAB: 20 questions to be answered in 9-minutes

Even though there are more questions asked on the Paper ASVAB does not make it more difficult. Both exams have been carefully calibrated to ensure that students, irrespective of which exam they take, will achieve approximately the same result.

To score well in the exam, students must have a commanding knowledge of the major topics that almost always appear on the exam.

What Gets Tested?

Below, we have put together a table of the most asked subjects and definitions on the ASVAB Electronics Information exam.

Bear in mind that you may also be asked ASVAB test questions on formulae, such as the formula for Ohm’s Law – and how to apply these equations in practice.

Syllabus SubjectTopics
Measuring ElectricityVolts
Amperes
Ohms
Coulombs
DefinitionsCurrent
Watt
Kilowatt-hour  
Electrical Principles Types of resistance
Ohm’s law
Electrical effects
Frequency
Impedance
Direction of electrical flow
CircuitsAlternating current
Direct Current
Capacitors
Inductors
Transistors
Electrical circuit symbols
Wires
Fuses
Transducers
Types of switches
Diodes
Amplifiers
Antennae

How to Pass the Electronics Information Exam

Based on the syllabus tabulated above, there are four key themes to take away from this ASVAB electronics information study guide:

  • How to measure electricity
  • Key definitions
  • Principles of electricity
  • Circuits and circuit symbol interpretation

These four key criteria always get tested. You may be asked a definitional question – such as what a transistor does – or you may be asked to interpret the meaning of an electrical circuit symbol. You may also be asked about the differences between alternating and direct current.

To pass the electronics information exam, candidates must first learn about circuits. Circuits illustrate the flow of electricity through a system – and the tools used to control the flow of electricity through that system. For instance, resistors are needed to resist the flow of electricity – ensuring that the system does not overload with electrical current. All electrical appliances and systems involve circuits of some kind or other. Ultimately, this subject should be the foundation of your study preparation. You should build around this core subject with the core principles of how electricity is created, how it is measured, and how it is controlled.

You must know all electrical symbols. Flashcards are the best way to commit these symbols to mind. ASVAB flashcards are an enormously powerful tool to commit large volumes of information to memory. You need to achieve two things:

  • First, correctly interpret the electrical symbol.
  • Second, know how it works / what it does, in an electrical circuit.

On the ASVAB exam, for example, you may be shown a circuit and asked to outline the function of that circuit feature. Symbols are the language of electrical circuits but, like all languages, you need to be able to put those symbols together in the correct format so that things make sense.

Next, learn Ohm’s law; a law that states voltage is a product of current multiplied by resistance. Ohm’s law almost always gets tested. You should know what the formula is used to calculate, why it is an important law, and to understand the symbols behind each variable.

Behind the principles of electricity, Ohm’s law, and symbols, and core definitions, there is not much left to prepare. One last topic that gets tested is conductors and insulators. For example, rubber and wood are bad conductors of electricity, whereas metals are good conductors of electricity. Steel, iron, and water are also excellent conductors of electricity. Bad conductors of electricity are said to be good insulators. Put another way, conductors allow electrical energy to freely move through their system whereas insulators do not.

For the ASVAB exam, you should be able to identify conductors and insulators from a list of answers.

The Bottom Line

As with all features of the ASVAB exam, learning about electronics information can take time. However, by focussing on the syllabus outlined here – and by practicing circuits and symbols and principles and definitions – you will cover next to all examinable topics for your exam.

Focus on a given topic each week and create ASVAB flashcards. Revise those flashcards at the end of each day’s study – and a total review at the end of each week. Continue this process for four weeks until all topics above have been comprehensively covered.

Take as many ASVAB test practice questions as possible, too. This confirms whether you understand a given topic and, second to that, it allows you to plug any final gaps in your knowledge through any explained answers provided. The more ASVAB test questions you practice, the more ground you cover, and the better the chance you will come out of the ASVAB exam with the highest possible score.

That’s about it for our ASVAB electronics information study guide. Check back to our ASVAB blog soon for more exclusive content to help you master the ASVAB exam and enlist in the US armed forces!

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