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Electronics Practice 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 Practice Test flashcards as text

  1. Which type of transistor is controlled by voltage at the gate terminal?

    Answer: FET (Field Effect Transistor)

    FETs (Field Effect Transistors) are voltage-controlled devices that use a gate to control current flow.

  2. If a circuit has a 9V battery and a 3Ω resistor, what is the current?

    Answer: 3A

    Using Ohm's Law: I = V/R = 9V / 3Ω = 3A.

  3. What does AM stand for in radio communication?

    Answer: Amplitude Modulation

    AM stands for Amplitude Modulation, where the carrier wave's amplitude is varied to encode information.

  4. The color code for a resistor with bands Orange, Orange, Red is:

    Answer: 3,300 Ω

    Orange=3, Orange=3, Red=×100 multiplier, giving 33 × 100 = 3,300 Ω.

  5. What is the purpose of a capacitor in a DC power supply filter?

    Answer: Smooth out voltage ripple

    A filter capacitor charges during voltage peaks and discharges during valleys, smoothing out ripple in DC output.

  6. Which gate produces a HIGH output only when ALL inputs are HIGH?

    Answer: AND gate

    An AND gate outputs HIGH only when all of its inputs are simultaneously HIGH.

  7. Frequency is measured in which unit?

    Answer: Hertz

    Frequency, the number of cycles per second, is measured in Hertz (Hz), named after Heinrich Hertz.