Inspection of infrastructure in Drone Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the drone inspection.

Drone Programming

drone.[1]()

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

Aland

Btakeoff

Chover

Dshutdown

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'land' instead of 'takeoff' will stop the drone.

The takeoff command makes the drone start flying for inspection.

2fill in blank

medium

Complete the code to move the drone forward by 10 meters.

Drone Programming

drone.move([1]=10)

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

Aup

Bdown

Cbackward

Dforward

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'up' moves the drone vertically, not forward.

The forward parameter moves the drone ahead by the specified meters.

3fill in blank

hard

Fix the error in the code to capture an image during inspection.

Drone Programming

image = drone.[1]()

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

Acapture_image

Brecord_video

Cstart_stream

Dstop_recording

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'record_video' captures video, not a photo.

The capture_image method takes a photo from the drone's camera.

4fill in blank

hard

Fill both blanks to create a dictionary of inspection points with their status.

Drone Programming

inspection_points = {point: drone.[1](point) for point in points if drone.[2](point)}

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

Acheck_status

Bcapture_image

Cis_accessible

Drecord_video

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'capture_image' in the condition will cause errors.

check_status gets the status of each point, and is_accessible checks if the drone can reach it.

5fill in blank

hard

Fill all three blanks to filter points and store their images during inspection.

Drone Programming

images = {point: drone.[1](point) for point in points if drone.[2](point) and drone.[3](point)}

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

Acapture_image

Bis_accessible

Ccheck_status

Drecord_video

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'record_video' instead of 'capture_image' stores videos, not images.

We capture images of points that are accessible and have a good status.

Practice

1. What is the main purpose of using a drone's inspect() function in infrastructure inspection?

easy

A. To control the drone's speed during flight

B. To repair damaged parts of the infrastructure

C. To send the drone to a specific location for inspection

D. To charge the drone's battery automatically

Solution

1. Step 1: Understand the function purpose

   The inspect() function is designed to send the drone to a location for inspection.

2. Step 2: Compare options with function role

   Only To send the drone to a specific location for inspection matches the purpose of sending the drone to inspect infrastructure.

3. Final Answer:

   To send the drone to a specific location for inspection -> Option C

4. Quick Check:

   inspect() sends drone to location = A [OK]

Hint: Remember: inspect() means 'go check there' [OK]

Common Mistakes:

• Confusing inspect() with repair functions
• Thinking inspect() controls speed
• Assuming inspect() charges battery

2. Which of the following is the correct syntax to capture an image during a drone inspection?

easy

A. drone.captureImage()

B. drone.capture-Image()

C. drone.captureimage()

D. drone.capture_image()

Solution

1. Step 1: Identify correct method naming style

   In drone programming, method names use lowercase with underscores for readability.

2. Step 2: Match options to correct style

   drone.capture_image() uses capture_image(), which is the correct syntax.

3. Final Answer:

   drone.capture_image() -> Option D

4. Quick Check:

   Method names use underscores = D [OK]

Hint: Use underscores for multi-word method names [OK]

Common Mistakes:

• Using camelCase instead of snake_case
• Omitting underscores between words
• Using invalid characters like hyphens

3. What will be the output of this code snippet?

drone.inspect('bridge')
image = drone.capture_image()
print(image)

medium

A. SyntaxError

B. 'bridge_image.jpg'

C. None

D. 'image captured'

Solution

1. Step 1: Understand the inspect and capture_image functions

   The inspect('bridge') sends the drone to the bridge, and capture_image() takes a photo and returns the filename.

2. Step 2: Analyze the print output

   Printing image shows the filename string, which is 'bridge_image.jpg'.

3. Final Answer:

   'bridge_image.jpg' -> Option B

4. Quick Check:

   capture_image() returns filename = C [OK]

Hint: capture_image() returns filename string [OK]

Common Mistakes:

• Expecting a boolean or None instead of filename
• Confusing print output with status messages
• Assuming syntax error without checking code

4. Identify the error in this drone inspection code:

drone.inspect('tower')
image = drone.captureImage()
print(image)

medium

A. Method name should be capture_image(), not captureImage()

B. Missing parentheses after inspect

C. print() cannot print variables

D. inspect() requires two arguments

Solution

1. Step 1: Check method names for correct syntax

   The method captureImage() is incorrect; it should be capture_image() using underscores.

2. Step 2: Verify other code parts

   inspect('tower') is correct with parentheses and one argument; print() can print variables.

3. Final Answer:

   Method name should be capture_image(), not captureImage() -> Option A

4. Quick Check:

   Method names use underscores = A [OK]

Hint: Check method names carefully for underscores [OK]

Common Mistakes:

• Using camelCase instead of snake_case
• Thinking print() can't print variables
• Assuming inspect needs two arguments

5. You want the drone to inspect multiple infrastructure points and save images with names matching each point. Which code correctly does this?

points = ['bridge', 'tower', 'dam']
images = {}
for point in points:
    drone.inspect(point)
    images[point] = drone.capture_image()
print(images)

hard

A. {'bridge': 'bridge_image.jpg', 'tower': 'tower_image.jpg', 'dam': 'dam_image.jpg'}

B. ['bridge_image.jpg', 'tower_image.jpg', 'dam_image.jpg']

C. {'bridge_image.jpg', 'tower_image.jpg', 'dam_image.jpg'}

D. SyntaxError due to missing colon in for loop

Solution

1. Step 1: Understand the loop and dictionary usage

   The code loops over points, inspects each, and stores the image filename in a dictionary with the point as key.

2. Step 2: Predict the dictionary content after loop

   Each key is the point name, and value is the image filename matching that point, e.g. 'bridge_image.jpg'.

3. Final Answer:

   {'bridge': 'bridge_image.jpg', 'tower': 'tower_image.jpg', 'dam': 'dam_image.jpg'} -> Option A

4. Quick Check:

   Dictionary keys = points, values = filenames = B [OK]

Hint: Use dictionary to map points to images [OK]

Common Mistakes:

• Using list instead of dictionary for mapping
• Forgetting colon after for loop
• Confusing set notation with dictionary