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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. What is the relationship between inductive reactance and frequency?

    Answer: Directly proportional

    Inductive reactance XL = 2πfL, so it increases proportionally as frequency increases.

  2. What is the function of a rectifier in a power supply?

    Answer: Converts AC to DC

    A rectifier uses diodes to convert alternating current (AC) into direct current (DC).

  3. When two capacitors are connected in series, the total capacitance is:

    Answer: Less than the smallest capacitor

    Series capacitors combine like parallel resistors: 1/Ct = 1/C1 + 1/C2, yielding a smaller total.

  4. What is the purpose of a voltage regulator IC in a circuit?

    Answer: Maintain a stable output voltage despite input variations

    A voltage regulator IC keeps the output voltage constant regardless of load or input fluctuations.

  5. What type of logic gate outputs HIGH only when all inputs are HIGH?

    Answer: AND gate

    An AND gate produces a HIGH output only when every input is HIGH; otherwise, output is LOW.

  6. A circuit draws 3 amperes from a 9-volt battery. What is the circuit's resistance?

    Answer: 3 ohms

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

  7. What is the purpose of a bypass capacitor placed near an IC power pin?

    Answer: Filter high-frequency noise on the power supply line

    A bypass (decoupling) capacitor filters high-frequency noise and voltage spikes from the power supply.