FREE ASVAB AND STUDY GAMES ABOUT ELECTRONICS

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FREE ASVAB AND STUDY GAMES ABOUT ELECTRONICS

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -48 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Transistors

Answer:

Amplify current. Ex: they can be used to amplify the small output current from a logic chip so it can operate a lamp, relay, or other high-current device.

Question 2: Two-way Switch

Answer:

Directs the flow of current to one of two routes, according to its position.

Question 3: Antenna

Answer:

A device designed to receive and/or transmit radio signals.

Question 4: Battery

Answer:

Two or more cells. the large terminal is positive.

Question 5: Yellow Resistor

Answer:

4

Question 6: Push Switch

Answer:

Allows current to flow only when the button is pressed.

Question 7: Present Variable Resistor

Answer:

A device that operates with a small screwdriver or similar tool; it's designed to be set when the circuit is made and then left without further adjustment.

Question 8: Cell

Answer:

Supplies the electrical current.

Question 9: Diode

Answer:

Allows electricity to flow in one direction. The arrow of the circuit symbol shows the direction in which the current can flow.

Question 10: Power =

Answer:

Watts

Question 11: DC Power Supply

Answer:

Provides a direct current that always flows in one direction.

Question 12: Indicator Lamp

Answer:

Convert electrical energy to light for such uses as a warning light on a car's dashboard.

Question 13: Violet Resistor

Answer:

7

Question 14: Current =

Answer:

Amperes (or amps)

Question 15: Push-to-break Switch

Answer:

The circuit is normally closed (the device is on): the circuit is open (device is off) only when the button is pressed.

Question 16: Orange Resistor

Answer:

3

Question 17: Microphone

Answer:

Converts sound to electrical energy.

Question 18: Rheostat

Answer:

A type of variable resistor with two contacts, usually used to control current. Ex: adjusting light brightness or adjusting motor speed.

Question 19: Ground

Answer:

A connection to the earth.

Question 20: Heater

Answer:

Converts electrical energy to heat.

Question 21: Resistance =

Answer:

Ohms

Question 22: Rectification

Answer:

Occurs in certain electronic circuits that need to change from AC to DC in order to run properly.

Question 23: Black Resistor

Answer:

Question 24: AC Power Supply

Answer:

Provides and alternative current that constantly changes direction at a specific frequency.

Question 25: Gray Resistor

Answer:

8

Question 26: Red Resistor

Answer:

2

Question 27: Capacitor

Answer:

Store electrical charge. They're used with resistors in timing circuits because it takes time for a capacitor to fill with charge. They're also used to filter circuits.

Question 28: With Resistor

Answer:

9