Quiz about Solid State Components Semester Review

Question 1

What is the primary function of a diode?

Accepted Answer

To only allow for electrons to pass through it in one direction

Answer

To allow for electrons to pass through it in both directions

Answer

To stop all electrons from passing through it

Answer

To amplify the flow of electrons

Question 2

Which of the following is NOT a type of rectifier?

Accepted Answer

Quarter Wave

Answer

Half Wave

Answer

Full Wave

Answer

Full Wave Bridge

Question 3

Which semiconductor material is widely used in the manufacturing of transistors?

Accepted Answer

Silicon

Answer

Germanium

Answer

Gallium Arsenide

Answer

Indium Phosphide

Question 4

What is "tinning" in the context of soldering iron maintenance?

Accepted Answer

Adding a thin layer of solder to the tip of the iron

Answer

Cleaning the iron with a damp sponge

Answer

Coating the iron with a protective plastic

Answer

Sharpening the tip of the iron

Question 5

How are the resistors connected in a voltage divider circuit?

Accepted Answer

In series across the power supply

Answer

In parallel across the power supply

Answer

In a mesh network

Answer

In a star network

Question 6

What happens to the current flow in a PN junction diode when it is forward biased?

Accepted Answer

It increases significantly.

Answer

It decreases significantly.

Answer

It remains unchanged.

Answer

There is no current flow in either direction.

Question 7

Which of the following best describes a semiconductor?

Accepted Answer

A material that allows current to pass under certain conditions

Answer

A material that completely blocks current

Answer

A material that allows current to pass without any resistance

Answer

A material that only conducts heat

Question 8

What does the symbol for a diode represent with its triangle and line?

Accepted Answer

The triangle represents the ANODE and the line represents the CATHODE.

Answer

The triangle represents the CATHODE and the line represents the ANODE.

Answer

Both the triangle and line represent the ANODE.

Answer

Both the triangle and line represent the CATHODE.

Question 9

What happens when Sophia connects a diode in the forward bias direction in her circuit project?

Accepted Answer

Current will flow.

Answer

Current will be blocked.

Answer

The depletion layer gets larger.

Answer

The diode has a high resistance.

Question 10

What type of personal protective equipment (PPE) should be used when soldering?

Accepted Answer

Eye protection

Answer

Highly Visible clothing

Answer

Helmet and boots

Answer

Earplugs

Question 11

What is the characteristic of a forward biased diode in terms of resistance?

Accepted Answer

Relatively low resistance

Answer

Relatively high resistance

Answer

Resistance remains constant

Answer

Resistance becomes infinite

Question 12

What is the forward bias voltage for a silicon semiconductor?

Accepted Answer

.6V

Answer

.3V

Answer

1V

Answer

1.5V

Question 13

What type of current flows once a diode has broken down and is allowing reverse biased current to flow?

Accepted Answer

Avalanche current

Answer

Direct current

Answer

Forward current

Answer

Alternating current

Question 14

What is the purpose of filters in a DC power supply?

Accepted Answer

To smooth out the rectified voltage

Answer

To convert AC to DC

Answer

To regulate the voltage

Answer

To multiply the voltage

Question 15

How can the polarity of a diode be checked?

Accepted Answer

With a DMM set to measure resistance

Answer

Using an oscilloscope

Answer

By applying a high voltage

Answer

Through a visual inspection

Question 16

What must be done before testing a diode to avoid incorrect readings?

Accepted Answer

Remove the diode from the circuit

Answer

Heat the diode

Answer

Apply a high voltage

Answer

Connect the diode in reverse bias

Question 17

What will a DMM (Digital Multimeter) display when using the "Diode Test Mode" on a diode that is in the forward biased connection?

Accepted Answer

The voltage drop across the diode

Answer

The resistance value

Answer

The current flowing through the diode

Answer

The capacitance of the diode

Question 18

What component in a DC power supply filter is responsible for smoothing voltage?

Accepted Answer

Capacitors

Answer

Inductors

Answer

Resistors

Answer

Transformers

Question 19

Which of the following should be observed when installing or servicing a diode?

Accepted Answer

Voltage and current specifications

Answer

Color and shape of the diode

Answer

Only the size of the diode

Answer

The brand of the diode

Question 20

What is the primary purpose of flux in the soldering process?

Accepted Answer

To clean the surface of the metals being soldered

Answer

To transfer thermal energy from the solder station to the iron

Answer

To identify safety hazards from soldering

Answer

To discuss electronic discharge workstations

Question 21

Which of the following is NOT a type of solder tip mentioned in the lesson?

Accepted Answer

Rounded Tips

Answer

Angled Tips

Answer

Chiseled Tips

Answer

Beveled Tips

Question 22

What is the purpose of selecting the proper iron tip in soldering?

Accepted Answer

To improve the heat transfer from the iron to the work surface

Answer

To improve the grip of the iron

Answer

To reduce the cost of soldering

Answer

To increase the size of the soldering iron

Question 23

Why is it important to have a properly tinned iron tip?

Accepted Answer

It ensures heat can be transferred from the iron to the work surface

Answer

It makes the iron tip look shiny and new

Answer

It allows for better heat retention within the iron

Answer

It prevents the transfer of heat from the iron to the work surface

Question 24

What is the purpose of doping in semiconductor materials?

Accepted Answer

To replace some atoms in the crystal structure to create N or P type materials.

Answer

To remove all impurities from the semiconductor.

Answer

To create a crystal structure that does not conduct electricity.

Answer

To make the semiconductor material completely neutral.

Question 25

What is a potential hazard of using lead-based solder?

Accepted Answer

It can release dangerous fumes

Answer

It can cause the iron to overheat

Answer

It can make the soldering iron tip blunt

Answer

It can damage the work surface

Question 26

What can enhance the effectiveness of a solder wick?

Accepted Answer

Applying a small amount of flux to the wick prior to use

Answer

Using a higher temperature on the soldering iron

Answer

Adding more solder to the connection

Answer

Using the solder wick on a cold solder joint

Question 27

What is a potential consequence of applying too little solder to a joint?

Accepted Answer

The joint may produce a weak connection and cause components to loosen over time

Answer

The joint may become too strong

Answer

The solder will not oxidize

Answer

The solder will bridge component leads or PC board traces

Question 28

What is the result of soldering with no flux or too little flux?

Accepted Answer

The joint may result in a poor connection due to contaminants not being removed

Answer

The joint will be stronger and more reliable

Answer

All contaminants will be removed effectively

Answer

The joint will be easier to de-solder in the future

Question 29

What is the function of the spring-loaded plunger in a de-soldering pump?

Accepted Answer

To remove heated liquid solder from a connection

Answer

To apply solder to the joint

Answer

To heat the solder on the joint

Answer

To clean the soldering iron tip

Question 30

What is the primary function of rectifiers in a DC power supply?

Accepted Answer

To convert alternating current (AC) to direct current (DC)

Answer

To filter out noise from the power supply

Answer

To regulate the output voltage

Answer

To divide the voltage into smaller units

Question 31

Which component is essential for adjusting the output voltage in a DC power supply?

Accepted Answer

Voltage regulator

Answer

Voltage multiplier

Answer

Voltage divider

Answer

Power interruption unit

Question 32

What is the purpose of using a solder wick during de-soldering?

Accepted Answer

To remove solder from a connection

Answer

To clean the soldering iron tip

Answer

To apply solder to a joint

Answer

To measure the amount of solder on a connection

Question 33

What is the role of a voltage divider in a DC power supply?

Accepted Answer

To provide multiple voltage outputs from a single source

Answer

To increase the voltage output

Answer

To convert AC to DC

Answer

To regulate the output voltage

Question 34

Which of the following is NOT a component of a DC power supply as shown in the diagram?

Accepted Answer

Battery

Answer

Transformer

Answer

Rectifier

Answer

Filter

Question 35

What is a characteristic of a shorted diode when tested with a DMM?

Accepted Answer

It displays the same voltage drop regardless of polarity

Answer

It shows no voltage drop

Answer

It displays varying voltage drops

Answer

It cannot be tested with a DMM

Question 36

Which component is essential for a rectifier to control the flow of current?

Accepted Answer

Diode

Answer

Resistor

Answer

Capacitor

Answer

Inductor

Question 37

What is the role of solder flux in the soldering process?

Accepted Answer

To prevent further oxidation of the metal during the soldering process

Answer

To clean the soldering iron after use

Answer

To prevent the solder from sticking to the iron

Answer

To enhance the oxidation process of the metal

Question 38

What type of DC is produced by a rectifier?

Accepted Answer

Pulsating DC

Answer

Steady DC

Answer

Inverted DC

Answer

Alternating DC

Question 39

How many diodes are used in a full wave bridge rectifier?

Accepted Answer

Four

Answer

Two

Answer

Three

Answer

Six

Question 40

What is the function of a soldering iron?

Accepted Answer

To transfer thermal energy from the solder station, through the tip of the iron, and into the work

Answer

To identify poor solder joints

Answer

To introduce types of soldering irons and their pros/cons

Answer

To describe methods of de-soldering

Question 41

What component in a DC power supply filter is responsible for smoothing current?

Accepted Answer

Inductors

Answer

Capacitors

Answer

Resistors

Answer

Transformers

Question 42

What will a meter read when connecting the leads with a known polarity to a diode in the forward biased connection?

Accepted Answer

Low resistance

Answer

High resistance

Answer

No resistance

Answer

Infinite resistance

Question 43

What is the purpose of a voltage regulator in an electrical circuit?

Accepted Answer

To maintain a relatively constant value of output voltage

Answer

To decrease the value of output voltage

Answer

To increase the input voltage

Answer

To convert AC to DC

Question 44

What is the purpose of a voltage divider circuit?

Accepted Answer

To provide several different voltages for several different loads

Answer

To increase the voltage for a single load

Answer

To decrease the current in an electrical circuit

Answer

To convert AC voltage to DC voltage

Question 45

What does UPS stand for in the context of power interruptions?

Accepted Answer

Uninterruptible Power Source

Answer

Uninterrupted Power Supply

Answer

Universal Power System

Answer

Unified Power Service

Solid State Components Semester Review

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