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Worksheets

Creative Tech 8 3rd Perio Reviewer

Total questions: 47

Worksheet time: 24mins

Name
Class
Date
1.

What is the primary function of the CPU?

a)

Store data permanently

b)

Execute instructions from memory

c)

Control power supply

d)

Generate graphics

2.

Which component within the CPU is responsible for logical decision-making?

a)

Memory Unit

b)

Control Unit

c)

Arithmetic Logic Unit (ALU)

d)

Input Device

3.

What is the fundamental principle used in logic gates?

a)

Quantum Mechanics

b)

Newton's Laws

c)

Boolean Logic

d)

Ohm's Law

4.

What are the two possible values in Boolean logic?

a)

0 and 2

b)

True and False

c)

A and B

d)

1 and 3

5.

What is the Boolean expression for an AND gate?

a)

Q = A + B

b)

Q = A.B

c)

Q = A XOR B

d)

Q = NOT A

6.

How many inputs must be true for an AND gate to output true?

a)

At least one

b)

Both

c)

None

d)

Only one

7.

What is the Boolean expression for an OR gate?

a)

Q = A.B

b)

Q = A + B

c)

Q = A ⊕ B

d)

Q = NOT A

8.

How many inputs must be true for an OR gate to output true?

a)

Both

b)

None

c)

At least one

d)

Only one

9.

What does a NOT gate do?

a)

Outputs true if any input is true

b)

Inverts the input

c)

Requires two inputs

d)

Adds two inputs

10.

What is the Boolean expression for a NOT gate?

a)

Q = A.B

b)

Q = A + B

c)

Q = NOT A

d)

Q = A ⊕ B

11.

What is the key difference between XOR and OR gates?

a)

XOR requires both inputs to be true

b)

XOR outputs true only if exactly one input is true

c)

XOR functions the same as OR

d)

XOR always outputs false

12.

What is the Boolean expression for an XOR gate?

a)

Q = A ⊕ B

b)

Q = A.B

c)

Q = A + B

d)

Q = NOT A

13.

Which gates are considered universal logic gates?

a)

AND and OR

b)

NOT and XOR

c)

NAND and NOR

d)

OR and XOR

14.

What makes a universal logic gate special?

a)

It only has one input

b)

It can replicate all logic gate functions

c)

It works only with OR operations

d)

It cannot be combined with other gates

15.

What does a NAND gate consist of?

a)

AND gate followed by a NOT gate

b)

OR gate followed by an AND gate

c)

XOR gate followed by a NOR gate

d)

NOT gate followed by an OR gate

16.

What is the Boolean expression for a NAND gate?

a)

Q = NOT(A.B)

b)

Q = A + B

c)

Q = A ⊕ B

d)

Q = NOT A

17.

What does a NOR gate consist of?

a)

NOT followed by OR

b)

NOT followed by AND

c)

OR followed by XOR

d)

XOR followed by AND

18.

What is the Boolean expression for a NOR gate?

a)

Q = A + B

b)

Q = NOT(A + B)

c)

Q = A.B

d)

Q = A ⊕ B

19.

What happens when both inputs of a NAND gate are true?

a)

Output is false

b)

Output is true

c)

Output is unpredictable

d)

Output is equal to the inputs

20.

What happens when both inputs of a NOR gate are false?

a)

Output is false

b)

Output is true

c)

Output is unpredictable

d)

Output is equal to the inputs

21.

Which logic gate is known for inverting its input?

a)

AND

b)

OR

c)

NOT

d)

XOR

22.

What type of circuits are created when multiple logic gates are combined?

a)

Arithmetic Circuits

b)

Analog Circuits

c)

Logic Circuits

d)

Memory Circuits

23.

What does a logic circuit do?

a)

Controls power distribution

b)

Stores large amounts of data

c)

Processes binary inputs to create a specific output

d)

Converts digital signals into analog signals

24.

What is the primary use of logic gates?

a)

Electrical wiring

b)

Digital circuit design

c)

Mechanical engineering

d)

Fluid dynamics

25.

If you input 1 into a NOT gate, what will the output be?

a)

1

b)

0

c)

Depends on the circuit

d)

Both 0 and 1

26.

What does PCB stand for?

a)

Printed Copper Board

b)

Printed Circuit Board

c)

Power Circuit Base

d)

Processor Control Board

27.

What is a single-sided PCB?

a)

A board with circuits on both sides

b)

A board with a conductive layer on one side and components on the other

c)

A board with three or more layers

d)

A flexible circuit board

28.

How is a double-sided PCB different from a single-sided PCB?

a)

It has three or more layers

b)

It has conductive traces on both top and bottom layers

c)

It does not have any copper layers

d)

It is flexible

29.

What are multilayer PCBs?

a)

PCBs with only two layers

b)

PCBs with three or more copper layers laminated together

c)

PCBs with no conductive traces

d)

PCBs made of plastic

30.

What is an advantage of a multilayer PCB?

a)

Less complex circuitry

b)

Ability to support complex circuits

c)

Limited connectivity

d)

Single-layer design

31.

What is the most basic type of PCB?

a)

Single-sided PCB

b)

Multilayer PCB

c)

Flexible PCB

d)

Hybrid PCB

32.

What is a key feature of double-sided PCBs?

a)

They do not use conductive traces

b)

They have traces on both sides of the board

c)

They cannot be used in electronic devices

d)

They do not use copper layers

33.

What type of PCB is commonly used in high-density applications?

a)

Multilayer PCB

b)

Single-sided PCB

c)

Wooden PCB

d)

Paper PCB

34.

Which material is commonly used in PCB manufacturing?

a)

Copper

b)

Aluminum

c)

Plastic

d)

Iron

35.

What does a PCB do?

a)

Stores data

b)

Provides mechanical support and electrical connections for components

c)

Converts analog signals to digital signals

d)

Generates power

36.

Which of these is a common application of PCBs?

a)

Clothing

b)

Computers and smartphones

c)

Wooden furniture

d)

Paper printing

37.

What is the function of a solder mask in a PCB?

a)

Protects the copper traces from oxidation and short circuits

b)

Increases the electrical resistance

c)

Prevents PCB from bending

d)

Reduces heat dissipation

38.

What is the purpose of vias in multilayer PCBs?

a)

To connect electrical signals between layers

b)

To make the PCB heavier

c)

To remove unwanted connections

d)

To block electrical flow

39.

Which of the following is NOT a type of PCB?

a)

Single-sided PCB

b)

Metal PCB

c)

Multilayer PCB

d)

Double-sided PCB

40.

What determines the complexity of a PCB?

a)

The color of the solder mask

b)

The number of layers and connections

c)

The size of the board

d)

The number of screws used

41.

Which PCB type is commonly used in simple circuits like LED flashers?

a)

Single-sided PCB

b)

Multilayer PCB

c)

Rigid-Flex PCB

d)

Hybrid PCB

42.

Why are PCBs preferred over traditional wiring?

a)

They reduce size and improve reliability

b)

They are more expensive

c)

They have higher resistance

d)

They need frequent repairs

43.

What is a primary benefit of using copper in PCBs?

a)

Excellent electrical conductivity

b)

Corrosion resistance

c)

Lightweight

d)

High flexibility

44.

What is the role of a silkscreen layer in a PCB?

a)

Provides insulation

b)

Displays component labels and markings

c)

Helps conduct electricity

d)

Reduces heat

45.

What happens if a PCB trace is too thin?

a)

It increases current flow

b)

It improves durability

c)

It may overheat and burn out

d)

It reduces electrical resistance

46.

What is a flexible PCB?

a)

A PCB that cannot conduct electricity

b)

A PCB that can bend and fold without breaking

c)

A PCB with only one layer

d)

A PCB that is only used in large machines

47.

What is the main disadvantage of multilayer PCBs?

a)

Higher manufacturing cost

b)

They cannot be used in electronics

c)

They cannot be customized

d)

They are less durable