ASVAB Electronics Information Test 3

Question 1

In a series circuit with three resistors of 10Ω, 20Ω, and 30Ω connected to a 12V battery, what is the total current flowing through the circuit?

Accepted Answer

0.2 A

Answer

6 A

Answer

1.2 A

Answer

0.5 A

Question 2

What is the function of a capacitor in an electronic circuit?

Accepted Answer

Store electrical charge and release it when needed

Answer

Amplify electrical signals

Answer

Convert AC to DC current

Answer

Increase resistance in the circuit

Question 3

What does 'impedance' mean in an AC circuit?

Accepted Answer

The total opposition to current flow including resistance and reactance

Answer

The resistance of only the capacitors in the circuit

Answer

The power factor of the circuit

Answer

The frequency-dependent voltage in the circuit

Question 4

In digital electronics, what logic operation does a NAND gate perform?

Accepted Answer

It outputs LOW only when ALL inputs are HIGH; otherwise outputs HIGH

Answer

It outputs HIGH only when ALL inputs are HIGH

Answer

It outputs HIGH when ANY input is HIGH

Answer

It inverts the single input signal

Question 5

What is the primary difference between a BJT (Bipolar Junction Transistor) and a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor)?

Accepted Answer

BJTs are controlled by base current; MOSFETs are controlled by gate voltage

Answer

BJTs are analog devices; MOSFETs are digital-only devices

Answer

BJTs are faster than MOSFETs at all frequencies

Answer

MOSFETs require more power to operate than BJTs

Question 6

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

Accepted Answer

Ground provides a common reference point and safety path for fault currents

Answer

Ground increases the voltage of the circuit

Answer

Ground increases the resistance of the circuit to prevent overload

Answer

Ground stores excess electrical energy from the circuit