Sub-Element T6 Electrical components, circuit diagrams, component functions [4 Exam Questions]

Question 1

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

Answer 1

Resistor

Question 2

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

Answer 2

Potentiometer

Question 3

What electrical parameter is controlled by a potentiometer?

Answer 3

Resistance

Question 4

What electrical component stores energy in an electric field?

Answer 4

Capacitor

Question 5

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

Answer 5

Capacitor

Question 6

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

Answer 6

Inductor

Question 7

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

Answer 7

Inductor

Question 8

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

Answer 8

Switch

Question 9

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

Answer 9

Fuse

Question 10

Which of the following battery types is rechargeable?

Answer 10

All of these choices are correct

Question 11

Which of the following battery types is not rechargeable?

Answer 11

Carbon-zinc

Question 12

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

Answer 12

Transistors

Question 13

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

Answer 13

Diode

Question 14

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

Answer 14

Transistor

Question 15

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

Answer 15

Transistor

Question 16

Which of the following electronic components can amplify signals?

Answer 16

Transistor

Question 17

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

Answer 17

With a stripe

Question 18

What does the abbreviation LED stand for?

Answer 18

Light Emitting Diode

Question 19

What does the abbreviation FET stand for?

Answer 19

Field Effect Transistor

Question 20

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

Answer 20

Anode and cathode

Question 21

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

Answer 21

Transistor

Question 22

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

Answer 22

Gain

Question 23

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

Answer 23

Schematic

Question 24

What do the symbols on an electrical schematic represent?

Answer 24

Electrical components

Question 25

Which of the following is accurately represented in electrical schematics?

Answer 25

The way components are interconnected

Question 26

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Answer 26

Rectifier

Question 27

What is a relay?

Answer 27

An electrically-controlled switch

Question 28

Which of the following displays an electrical quantity as a numeric value?

Answer 28

Meter

Question 29

What type of circuit controls the amount of voltage from a power supply?

Answer 29

Regulator

Question 30

What component is commonly used to change 120V AC house current to a lower AC voltage for other uses?

Answer 30

Transformer

Question 31

Which of the following is commonly used as a visual indicator?

Answer 31

LED

Question 32

Which of the following is combined with an inductor to make a tuned circuit?

Answer 32

Capacitor

Question 33

What is the name of a device that combines several semiconductors and other components into one package?

Answer 33

Integrated circuit

Question 34

Which of the following is a resonant or tuned circuit?

Answer 34

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

Question 35

Which of the following is a common reason to use shielded wire?

Answer 35

To prevent coupling of unwanted signals to or from the wire