ASVAB ELECTRONICS PRACTICE TEST

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ASVAB ELECTRONICS PRACTICE TEST

Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -13 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: The resistor color code for 2 is

• Black
• Brown
• Red
• Orange

Answer:

The correct answer is (C) Red. The band code for a resistor is as follows:

• Black is 0
• Brown is 1
• Red is 2
• Orange is 3
• Yellow is 4
• Green is 5
• Blue is 6
• Violet is 7
• Gray is 8
• White is 9

Question 2: If a circuit has 8 volts of power and 4 ohms of resistance, what will the current equal?

• 1/2 amp
• 2 amp
• 4 amp
• 8 amp

Answer:

Question 11 Explanation: The correct answer is (B) 2 amp. Current is measured in amps. The formula to

use here is: I = V/R

I = 8/4

I = 2 Question 3: The amount of energy used by a consumer in their home or business is typically measured in

• current
• amps
• voltage
• kilowatt-hour

Answer:

The correct answer is (D) kilowatt-hour. A kilowatt-hour (kWh) is a unit of energy equivalent to one kilowatt (1 kW) of power expended for one hour Question 4: Which of these electrical devices can be used to store an electric charge?

• Semiconductor
• Diode
• Capacitor
• Transistor

Answer:

Capacitors consist of one or more pairs of metal conducting plates that are separated by an insulator.The insulator is called the dielectric. An electric charge builds up when a voltage is applied across the

plates, which creates an electric field.Question 5: What is the voltage in a circuit with 10 amps of current and 6 ohms of resistance?

A. 0.6

B. 1.7

• 60

D. 600

Answer:

The correct answer is (C) 60. The formula to use here is: V = I x R

V = 10 x 6

V = 60

Question 6: Which of the following is the correct definition of an electrical cell?

• A method of grounding an electrical current to the ground.
• A system of transporting current from one part of a component to another.
• A device that is capable of changing some form of energy (such as chemical energy) into

electricity.D.An electrical device that can convert electric power into radio waves, and vice versa.

Answer:

The correct answer is (C) A device that is capable of changing some form of energy (such as chemical energy) into electricity.An electrical cell supplies electrical current. Examples include batteries and solar cells.

Question 7: Three amps equals how many milliamps?

A. 0.003

• 30

C. 300

D. 3,000

Answer:

The correct answer is (D) 3,000.. A milliamp is one thousandth of an amp. So every amp equals 1,000

milliamps:

• x 1,000 = 3,000.

Question 8: Electrical power can be calculated with the following formula: P = I x V What does the letter I represent in this formula?

• watts
• voltage
• current
• impedance

Answer:

The correct answer is (C) current. P represents power, which is measured in watts. I represents current, which is measured in amperes. V represents voltage which is measured in volts.

Question 9: Which of the following is NOT a type of resistor?

• potentiometer
• dielectric
• rheostat
• variable

Answer:

The correct answer is (B). A potentiometer is a three terminal resistor with a sliding contact. A rheostat is a two terminal variable resistor. A variable resistor is any resistor that allows you to change the amount of resistance. Potentiometers and rheostats are both types of variable resistors.Question 10: What device would you use to measure electrical resistance in a circuit.

• ohmmeter
• voltmeter
• ammeter
• electricity meter

Answer:

The correct answer is (A) ohmmeter. Electrical resistance is measured in ohms, and can be measured with an ohmmeter.