What is a printed circuit board in PCB Design - Interactive Quiz & Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a printed circuit board as a ___.

PCB Design

A printed circuit board (PCB) is a [1] that connects electronic components.

Drag options to blanks, or click blank then click option'

Acable

Bsoftware

Cboard

Dbattery

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing software or cable instead of board.

A PCB is a physical board that connects electronic parts.

2fill in blank

medium

Complete the code to describe the main function of a PCB.

PCB Design

The main function of a PCB is to [1] electronic components and provide electrical connections.

Drag options to blanks, or click blank then click option'

Aconnect

Bstore

Ccharge

Dprogram

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing store or charge instead of connect.

A PCB connects components and allows electricity to flow between them.

3fill in blank

hard

Fix the error in the sentence describing PCB layers.

PCB Design

A PCB usually has multiple [1] to route signals and power.

Drag options to blanks, or click blank then click option'

Abatteries

Bwires

Cchips

Dlayers

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing wires or chips instead of layers.

PCBs have layers of copper to route signals, not wires or batteries.

4fill in blank

hard

Fill both blanks to describe PCB materials and function.

PCB Design

A PCB is made of a [1] base and [2] traces for electrical paths.

Drag options to blanks, or click blank then click option'

Afiberglass

Bplastic

Ccopper

Dgold

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing plastic or gold instead of fiberglass or copper.

PCBs use fiberglass as a base and copper for electrical paths.

5fill in blank

hard

Fill all three blanks to explain PCB design steps.

PCB Design

First, create a [1] of the circuit, then [2] the layout, and finally [3] the PCB.

Drag options to blanks, or click blank then click option'

Aschematic

Bsimulate

Cmanufacture

Dassemble

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up simulate and assemble steps.

Design starts with a schematic, then simulation, then manufacturing the PCB.

Practice

1. What is the main purpose of a printed circuit board (PCB)?

easy

A. To display images on a screen

B. To store electrical energy like a battery

C. To act as a power source for devices

D. To connect electronic components using copper paths

Solution

1. Step 1: Understand PCB function

   A PCB connects electronic parts using copper paths instead of wires.

2. Step 2: Eliminate unrelated options

   PCBs do not store energy, provide power, or display images.

3. Final Answer:

   To connect electronic components using copper paths -> Option D

4. Quick Check:

   PCB = Connect components [OK]

Hint: PCBs replace wires with copper paths [OK]

Common Mistakes:

• Thinking PCB stores energy
• Confusing PCB with power source
• Assuming PCB displays images

2. Which of the following is the correct description of a PCB layer?

easy

A. A layer is a sheet of plastic that holds components

B. A layer is a copper path that connects parts electrically

C. A layer is a battery inside the board

D. A layer is a screen that shows circuit diagrams

Solution

1. Step 1: Define PCB layer

   A PCB layer is a copper path that connects electronic parts electrically.

2. Step 2: Remove incorrect options

   Layers are not plastic sheets holding parts, batteries, or screens.

3. Final Answer:

   A copper path that connects parts electrically -> Option B

4. Quick Check:

   PCB layer = Copper path [OK]

Hint: Layers are copper paths, not plastic or batteries [OK]

Common Mistakes:

• Confusing layers with plastic sheets
• Thinking layers are batteries
• Assuming layers display images

3. If a PCB has 4 layers, which of the following is true?

medium

A. It has 4 screens to display information

B. It has 4 batteries inside the board

C. It has 4 separate copper paths stacked inside

D. It has 4 plastic sheets without copper

Solution

1. Step 1: Understand multi-layer PCB

   A 4-layer PCB means 4 copper layers stacked to connect parts.

2. Step 2: Exclude wrong options

   PCBs do not contain batteries, screens, or just plastic sheets without copper.

3. Final Answer:

   It has 4 separate copper paths stacked inside -> Option C

4. Quick Check:

   4-layer PCB = 4 copper layers [OK]

Hint: Layers mean copper paths stacked, not batteries or screens [OK]

Common Mistakes:

• Thinking layers are batteries
• Assuming layers are screens
• Ignoring copper in layers

4. A PCB design file shows copper paths but no connections between components. What is likely the problem?

medium

A. The copper paths are not properly connected to component pads

B. The PCB has too many layers

C. The components are missing from the board

D. The PCB is made of plastic only

Solution

1. Step 1: Analyze missing connections

   If copper paths exist but no connections, paths may not touch component pads.

2. Step 2: Rule out other causes

   Too many layers or missing components do not cause copper paths to disconnect; plastic only means no copper.

3. Final Answer:

   The copper paths are not properly connected to component pads -> Option A

4. Quick Check:

   Disconnected copper paths = No pad connection [OK]

Hint: Check copper paths connect to pads, not just present [OK]

Common Mistakes:

• Blaming too many layers
• Assuming components missing cause copper disconnect
• Thinking PCB is plastic only

5. You need a PCB for a small wearable device that must be very thin and flexible. Which PCB type should you choose?

hard

A. Flexible PCB made with thin copper and plastic

B. Rigid PCB with multiple thick layers

C. Single-layer PCB with heavy copper

D. PCB made only of plastic without copper

Solution

1. Step 1: Identify device needs

   The device needs a thin, flexible PCB to fit wearable design.

2. Step 2: Match PCB type

   Flexible PCBs use thin copper and plastic to bend without breaking.

3. Step 3: Exclude unsuitable types

   Rigid PCBs are thick and not flexible; plastic-only PCBs lack copper paths.

4. Final Answer:

   Flexible PCB made with thin copper and plastic -> Option A

5. Quick Check:

   Wearable device = Flexible PCB [OK]

Hint: Wearables need flexible, thin PCBs [OK]

Common Mistakes:

• Choosing rigid PCBs for flexible needs
• Ignoring copper in PCB
• Selecting plastic-only boards