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ASVAB Electronics Information Practice Questions and Study Tips
Electronics Information covers electrical current, circuits and basic electronic parts. It does not count toward your AFQT, but it matters for electronics, communications and technical jobs in every branch.
| Questions (paper ASVAB) | 20 |
|---|---|
| Time limit | 9 minutes |
| Abbreviation | EI |
| Counts toward AFQT? | No. It is used for line scores and job qualification, not the AFQT. |
The computer version of the ASVAB (CAT-ASVAB) has fewer questions and adjusts the difficulty to your answers, but it covers the same material.
What the Electronics Information subtest covers
- Ohm's law and power (V = I × R, P = V × I)
- Series and parallel circuits
- Conductors, insulators and units of measurement
- Parts such as resistors, capacitors, diodes and transistors
- Household wiring and safety
Electronics Information practice questions
Try these sample questions written in the ASVAB style. Members get hundreds more, with a worked solution the moment you answer.
1. A circuit has a 12-volt battery and a 4-ohm resistor. What is the current?
- 0.33 amps
- 3 amps
- 8 amps
- 48 amps
Show answer
B. 3 amps Ohm's law: I = V ÷ R = 12 ÷ 4 = 3 amps.
2. Electrical resistance is measured in:
- Volts
- Amps
- Ohms
- Watts
Show answer
C. Ohms Ohms measure how much a material resists current.
3. Which material is the best conductor of electricity?
- Rubber
- Copper
- Glass
- Dry wood
Show answer
B. Copper Copper is a metal with low resistance, which is why most wiring uses it.
Tips for the Electronics Information subtest
- Memorize Ohm's law. It answers a large share of the questions.
- Know the units: volts, amps, ohms, watts, farads and hertz.
- With 20 questions in 9 minutes, you have under 30 seconds each, so don't overthink.
Questions people ask
How many questions are on ASVAB Electronics Information?
The paper ASVAB has 20 Electronics Information questions with a 9-minute time limit. The computer version has fewer questions.
Does Electronics Information count toward the AFQT?
No. It is used for line scores and job qualification, not the AFQT.
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