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# Electronics Information for ASVAB Power Practice Problems

By LearningExpress Editors
LearningExpress, LLC

These electronics information practice questions are based on the actual ASVAB. Take this quiz to see how you would do if you took the exam today and to determine your strengths and weaknesses as you plan your study schedule.

Time: 9 minutes

1. LED stands for which of the following?
1. light emissions diagram
2. light emitting diode
3. lighting electrical diagram
4. light equivalence delivery
2. Ohm's law defines which of the following?
1. the relationship between electrons and conductors in a circuit
2. the relationship between amperes and circuits
3. the relationship between voltage, current, and resistance in an electrical circuit
4. the relationship between voltage and capacitors
3. The science of electronics is
1. the capability to link multiple electrical devices together.
2. the process of creating electricity.
3. the practice of using electricity in an electronic device.
4. the use of the controlled motion of electrons through different media and vacuum.
4. A semiconductor
1. partially blocks a battery from providing power.
2. controls the current flowing through a circuit.
3. controls the speed of electricity.
4. allows electrical conductivity between a conductor and an insulator.
5. Which is NOT true of a series circuit?
1. the current through each of the components is the same
2. the voltage across the components is the sum of the voltages across each component
3. a series circuit has only one resistor
4. there is no alternative route for the charge
1. antenna, tuner, speakers, detector, amplifier
2. antenna, detector, tuner, speakers
3. antenna, tuner, speaker
4. antenna, speakers, detector
7. Which of the following equations represents Ohm's Law?
1. Ω = A × C
2. V = I × R
3. V = A × C
4. Ω = V × R
8. What is the role of resistance in the flow of electricity?
1. to direct the flow of electricity
2. to stop the flow of electricity
3. to restrict the flow of electricity
4. to speed up the flow of electricity
9. Increasing resistance will cause
1. the current to decrease.
2. the voltage to increase.
3. the current to increase.
4. the voltage to decrease.
10. When designing a circuit, Joule's Law can be used to help
1. determine what type of resistor to use.
2. determine the level of voltage.
3. ensure that the components in the circuit can handle the level of current being used.
4. minimize the current needed.
11. Ten lightbulbs are connected in a series circuit. If one bulb breaks, what will happen?
1. The other bulbs will still light.
2. It depends on which bulb breaks.
3. The other bulbs will break.
4. The other bulbs will not light.
12. What is another name for transistor?
1. semiconductor
2. resistor
3. circuit
4. attenuator
13. What is the role of a capacitor?
1. It stores electricity.
2. It generates electricity.
3. It burns electricity.
4. It controls electricity.
14. When the switch is closed in this diagram, what will happen to the current?
1. The current will remain steady.
2. The current will decrease over time as the capacitor charges.
3. The current will increase over time as the capacitor charges.
4. There will be no current when the switch is closed.
15. The piezoelectric effect occurs when
1. electricity is applied to a transformer, which generates a surplus of energy.
2. certain types of crystals are vibrated or altered, causing them to generate a voltage.
3. static electricity builds up to a point where it discharges into the nearest object.
4. none of the above occurs.
16. What is an RC circuit?
1. a response-conductor circuit
2. a resistance-current circuit
3. a response-charge circuit
4. a resistor-capacitor circuit
17. Which of the following schematic symbols represents an LED?
18. Transistors may come in many shapes, but all have three leads or legs, which are called the
1. base, activator, and collector.
2. base, emitter, and collector.
3. base, emitter, and activator.
4. base, collector, and tab.
19. An AA battery produces a potential difference of 1.5 V. Four AA batteries are placed in series to power a portable FM radio. What is the total voltage of the radio?
1. 0.75 V
2. 1.5 V
3. 3.0 V
4. 6.0 V
20. What is a transmitter used for?
1. to speed up the current in a circuit
2. to aid in charging the capacitor
3. as a resistor
4. as a switch or an amplifier

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