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Electronics Information Test Flashcards

7 cards from real ASVAB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Electronics Information Test flashcards as text

  1. Which component stores energy in a magnetic field?

    Answer: Inductor

    Inductors store energy in a magnetic field created by current flowing through a coil of wire.

  2. What does a multimeter measure?

    Answer: Voltage, current, and resistance

    A multimeter is a versatile instrument that can measure voltage (V), current (A), and resistance (Ω).

  3. What is the total voltage in a series circuit containing a 3V, 5V, and 7V source all aiding?

    Answer: 15 volts

    In a series aiding configuration, voltages add together: 3 + 5 + 7 = 15 volts.

  4. What is the purpose of a ground in an electrical circuit?

    Answer: Provide a common reference point and safety path

    Ground provides a common voltage reference (0V) and a safe return path for fault currents.

  5. Which waveform is produced by a standard AC generator?

    Answer: Sine wave

    AC generators (alternators) naturally produce a smooth sinusoidal (sine wave) voltage output.

  6. What is the difference between a NPN and PNP transistor?

    Answer: NPN has current flowing into the base to turn on; PNP uses current flowing out of the base

    In NPN transistors, base current flows in to switch on; in PNP, current flows out of the base to activate.

  7. What effect does increasing wire length have on its electrical resistance?

    Answer: Increases resistance

    Resistance is directly proportional to wire length: R = ρL/A, so longer wire means higher resistance.