Technician Subelement T6

Question 1

What electrical component opposes the flow of current in a DC circuit?

A. Inductor

B. Resistor

C. Voltmeter

D. Transformer

Answer 1

Resistor

Question 2

What type of component is often used as an adjustable volume control?

A. Fixed resistor

B. Power resistor

C. Potentiometer

D. Transformer

Answer 2

Potentiometer

Question 3

What electrical parameter is controlled by a potentiometer?

A. Inductance

B. Resistance

C. Capacitance

D. Field strength

Answer 3

Resistance

Question 4

What electrical component stores energy in an electric field?

A. Resistor

B. Capacitor

C. Inductor

D. Diode

Answer 4

Capacitor

Question 5

What type of electrical component consists of two or more conductive surfaces separated by an insulator?

A. Resistor

B. Potentiometer

C. Oscillator

D. Capacitor

Answer 5

Capacitor

Question 6

What type of electrical component stores energy in a magnetic field?

A. Resistor

B. Capacitor

C. Inductor

D. Diode

Answer 6

Inductor

Question 7

What electrical component usually is constructed as a coil of wire?

A. Switch

B. Capacitor

C. Diode

D. Inductor

Answer 7

Inductor

Question 8

What electrical component is used to connect or disconnect electrical circuits?

A. Magnetron

B. Switch

C. Thermistor

D. All of these choices are correct

Answer 8

Switch

Question 9

What electrical component is used to protect other circuit components from current overloads?

A. Fuse

B. Capacitor

C. Inductor

D. All of these choices are correct

Answer 9

Fuse

Question 10

Which of the following battery types is rechargeable?

A. Nickel-metal hydride

B. Lithium-ion

C. Lead-acid gel-cell

D. All of these choices are correct

Answer 10

All of these choices are correct

Question 11

Which of the following battery types is not rechargeable?

A. Nickel-cadmium

B. Carbon-zinc

C. Lead-acid

D. Lithium-ion

Answer 11

Carbon-zinc

Question 12

What class of electronic components uses a voltage or current signal to control current flow?

A. Capacitors

B. Inductors

C. Resistors

D. Transistors

Answer 12

Transistors

Question 13

What electronic component allows current to flow in only one direction?

A. Resistor

B. Fuse

C. Diode

D. Driven element

Answer 13

Diode

Question 14

Which of these components can be used as an electronic switch or amplifier?

A. Oscillator

B. Potentiometer

C. Transistor

D. Voltmeter

Answer 14

Transistor

Question 15

Which of the following components can consist of three layers of semiconductor material?

A. Alternator

B. Transistor

C. Triode

D. Pentagrid converter

Answer 15

Transistor

Question 16

Which of the following electronic components can amplify signals?

A. Transistor

B. Variable resistor

C. Electrolytic capacitor

D. Multi-cell battery

Answer 16

Transistor

Question 17

How is the cathode lead of a semiconductor diode often marked on the package?

A. With the word “cathode”

B. With a stripe

C. With the letter C

D. With the letter K

Answer 17

With a stripe

Question 18

What does the abbreviation LED stand for?

A. Low Emission Diode

B. Light Emitting Diode

C. Liquid Emission Detector

D. Long Echo Delay

Answer 18

Light Emitting Diode

Question 19

What does the abbreviation FET stand for?

A. Field Effect Transistor

B. Fast Electron Transistor

C. Free Electron Transmitter

D. Frequency Emission Transmitter

Answer 19

Field Effect Transistor

Question 20

What are the names of the two electrodes of a diode?

A. Plus and minus

B. Source and drain

C. Anode and cathode

D. Gate and base

Answer 20

Anode and cathode

Question 21

Which of the following could be the primary gain-producing component in an RF power amplifier?

A. Transformer

B. Transistor

C. Reactor

D. Resistor

Answer 21

Transistor

Question 22

What is the term that describes a device’s ability to amplify a signal?

A. Gain

B. Forward resistance

C. Forward voltage drop

D. On resistance

Answer 22

Gain

Question 23

What is the name of an electrical wiring diagram that uses standard component symbols?

A. Bill of materials

B. Connector pinout

C. Schematic

D. Flow chart

Answer 23

Schematic

Question 24

What is component 1 in figure T1?

A. Resistor

B. Transistor

C. Battery

D. Connector

Answer 24

Resistor

Question 25

What is component 2 in figure T1? A. Resistor B. Transistor C. Indicator lamp D. Connector

Answer 25

Transistor

Question 26

What is component 3 in figure T1? A. Resistor B. Transistor C. Lamp D. Ground symbol

Answer 26

Lamp

Question 27

What is component 4 in figure T1? A. Resistor B. Transistor C. Battery D. Ground symbol

Answer 27

Battery

Question 28

What is component 6 in figure T2? A. Resistor B. Capacitor C. Regulator IC D. Transistor

Answer 28

Capacitor

Question 29

What is component 8 in figure T2? A. Resistor B. Inductor C. Regulator IC D. Light emitting diode

Answer 29

Light emitting diode

Question 30

What is component 9 in figure T2? A. Variable capacitor B. Variable inductor C. Variable resistor D. Variable transformer

Answer 30

Variable resistor

Question 31

What is component 4 in figure T2? A. Variable inductor B. Double-pole switch C. Potentiometer D. Transformer

Answer 31

Transformer

Question 32

What is component 3 in figure T3? A. Connector B. Meter C. Variable capacitor D. Variable inductor

Answer 32

Variable inductor

Question 33

What is component 4 in figure T3? A. Antenna B. Transmitter C. Dummy load D. Ground

Answer 33

Antenna

Question 34

What do the symbols on an electrical schematic represent? A. Electrical components B. Logic states C. Digital codes D. Traffic nodes

Answer 34

Electrical components

Question 35

Which of the following is accurately represented in electrical schematics? A. Wire lengths B. Physical appearance of components C. The way components are interconnected D. All of these choices are correct

Answer 35

The way components are interconnected

Question 36

Which of the following devices or circuits changes an alternating current into a varying direct current signal? A. Transformer B. Rectifier C. Amplifier D. Reflector

Answer 36

Rectifier

Question 37

What is a relay? A. An electrically-controlled switch B. A current controlled amplifier C. An optical sensor D. A pass transistor

Answer 37

An electrically-controlled switch

Question 38

What type of switch is represented by component 3 in figure T2? A. Single-pole single-throw B. Single-pole double-throw C. Double-pole single-throw D. Double-pole double-throw

Answer 38

Single-pole single-throw

Question 39

Which of the following displays an electrical quantity as a numeric value? A. Potentiometer B. Transistor C. Meter D. Relay

Answer 39

Meter

Question 40

What type of circuit controls the amount of voltage from a power supply? A. Regulator B. Oscillator C. Filter D. Phase inverter

Answer 40

Regulator

Question 41

What component is commonly used to change 120V AC house current to a lower AC voltage for other uses? A. Variable capacitor B. Transformer C. Transistor D. Diode

Answer 41

Transformer

Question 42

Which of the following is commonly used as a visual indicator? A. LED B. FET C. Zener diode D. Bipolar transistor

Answer 42

LED

Question 43

Which of the following is combined with an inductor to make a tuned circuit? A. Resistor B. Zener diode C. Potentiometer D. Capacitor

Answer 43

Capacitor

Question 44

What is the name of a device that combines several semiconductors and other components into one package? A. Transducer B. Multi-pole relay C. Integrated circuit D. Transformer

Answer 44

Integrated circuit

Question 45

What is the function of component 2 in Figure T1? A. Give off light when current flows through it B. Supply electrical energy C. Control the flow of current D. Convert electrical energy into radio waves

Answer 45

Control the flow of current

Question 46

Which of the following is a resonant or tuned circuit? A. An inductor and a capacitor connected in series or parallel to form a filter B. A type of voltage regulator C. A resistor circuit used for reducing standing wave ratio D. A circuit designed to provide high-fidelity audio

Answer 46

An inductor and a capacitor connected in series or parallel to form a filter

Question 47

Which of the following is a common reason to use shielded wire? A. To decrease the resistance of DC power connections B. To increase the current carrying capability of the wire C. To prevent coupling of unwanted signals to or from the wire D. To couple the wire to other signals

Answer 47

To prevent coupling of unwanted signals to or from the wire