ASVAB Electronics Information Practice Test

Which of these electrical devices can be used to store an electric charge?

Resistor

Inductor

Capacitor

Diode

If an 12 coulomb charge produces 4 volts, what is the total amount of energy?

3 J

16 J

48 J

120 J

Which of the following is the SI unit representing one cycle per second?

Frequency

Ohm

Ampere

Hertz

Which instrument is used to measure electrical resistance in a circuit?

Ohmmeter

Voltmeter

Ammeter

Electricity Meter

What is the most conductive element?

Copper

Aluminium

Silver

Iron

The amount of energy used by a consumer in their home or business is typically measured in _ _ _ _ .

Joules

Watts

Volts

Kilowatt-hours

How many milliamps are equivalent to five amps?

500

5000

0.005

What is another name for a blocking capacitor?

Bypass capacitor

Tuning capacitor

Coupling capacitor

Rheostat

The ammeter measures what aspect of an electrical circuit?

Voltage

Ohms

Resistance

Current

What type of energy does a generator produce from mechanical energy?

Chemical

Thermal

Electrical

Nuclear

How many times can a fuse be reused?

Once

Twice

Multiple times

Never

If a circuit has a voltage of 12 volts and 6 ohms of resistance, what will the current equal?

1 ampere

2 amperes

3 amperes

6 amperes

Your electric piano is consuming 240 W of power on a standard 120 V power supply. How much current is flowing?

2 amperes

6 amperes

8 amperes

12 amperes

What is the load in this basic circuit model?

Electric Circuit With Battery and Bulb

When a diode is used for rectification, what is happening?

Electrical resistance is being measured

Alternating current (AC) is being converted to direct current (DC)

Voltage is being regulated

Electrical energy is being stored

In which direction does current always flow?

From positive to negative terminal

From negative to positive terminal

From lower potential to higher potential

It depends on the type of circuit

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