ASVAB Electronics Information Test 4

Question 1

What is the relationship between inductive reactance and frequency?

Accepted Answer

Directly proportional

Answer

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

Question 2

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

Accepted Answer

Converts AC to DC

Answer

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

Question 3

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

Accepted Answer

Less than the smallest capacitor

Answer

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

Question 4

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

Accepted Answer

Maintain a stable output voltage despite input variations

Answer

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

Question 5

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

Accepted Answer

AND gate

Answer

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

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