Why PCB design skills matter - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to calculate the total number of layers in a PCB design.

PCB Design

total_layers = base_layers [1] additional_layers

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

A*

B+

C-

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using multiplication instead of addition.

Using subtraction which reduces the count incorrectly.

Adding base layers and additional layers gives the total number of layers in the PCB.

2fill in blank

medium

Complete the code to filter PCB components with resistance greater than 100 ohms.

PCB Design

filtered_components = [comp for comp in components if comp.resistance [1] 100]

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

A<=

B<

C==

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using less than operator which selects wrong components.

Using equality operator which selects only exactly 100 ohms.

The '>' operator filters components with resistance greater than 100 ohms.

3fill in blank

hard

Fix the error in the code to calculate the total cost of PCB components.

PCB Design

total_cost = sum(comp.price [1] comp.quantity for comp in components)

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

A-

B+

C*

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Adding price and quantity which is incorrect for cost calculation.

Dividing price by quantity which does not make sense here.

Multiply price by quantity for each component before summing to get total cost.

4fill in blank

hard

Fill both blanks to create a dictionary of component names and their quantities for components with quantity greater than 5.

PCB Design

component_dict = {comp.[1]: comp.[2] for comp in components if comp.quantity > 5}

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

Aname

Bquantity

Cprice

Dresistance

Attempts:

3 left

💡 Hint

Common Mistakes

Using price or resistance instead of quantity for values.

Using quantity as key which is not unique.

The dictionary keys are component names and values are their quantities.

5fill in blank

hard

Fill all three blanks to create a list of component names with resistance less than 50 ohms and price below 10.

PCB Design

selected_components = [comp.[1] for comp in components if comp.[2] [3] 50 and comp.price < 10]

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

Aname

Bresistance

C<

Dquantity

Attempts:

3 left

💡 Hint

Common Mistakes

Using quantity instead of resistance for filtering.

Using greater than operator instead of less than.

The list comprehension selects component names where resistance is less than 50 ohms and price is below 10.