App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 260 · 40 questions

Developer's tip (Think like the user): First decide which topic the question is about. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order. For code, count positions from 0.

1. 1.🔘 Is this good or poor button design: strong colour contrast? (a) good design (b) poor design
2. 2.🎨 UI stands for user ___. (a) internet (b) idea (c) interface (d) input
3. 3.💾 pop() takes off the last item. What does this code show?
   let notes = ["Maths", "Art", "Sports", "Science", "Music"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Art (b) Maths (c) Science (d) Sports
4. 4.🔢 In a photo-post flow, which comes LAST? (a) post the photo (b) take the photo (c) add a filter (d) open the camera screen
5. 5.🔢 In a food-order flow, which comes first: “pay for the order” or “track the order”? (a) track the order (b) pay for the order
6. 6.💾 What number does this code show?
   let notes = ["Music", "Hindi", "Maths", "Art"];
   notes.push("Sports");
   notes.push("Science");
   show(notes.length);
7. 7.🔢 In a quiz-app flow, which comes first: “see the final score” or “pick an answer”? (a) pick an answer (b) see the final score
8. 8.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) strong colour contrast (d) icons with no labels
9. 9.🔢 In a food-order flow, which comes first: “track the order” or “pick a dish”? (a) pick a dish (b) track the order
10. 10.✏️ What is a wireframe? (a) a type of password (b) the finished app (c) a simple screen sketch (d) a charging cable
11. 11.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 52 px tall
    Next button: 48 px tall
    Done button: 32 px tall (a) Cancel (b) Next (c) Done
12. 12.🔍 Which is the odd one out? (a) the font size (b) the button colours (c) how fast a task is done (d) the theme colours
13. 13.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) a closed app (c) a picture goes here (d) delete this
14. 14.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Cart → Pay
    Design B: Home → Search → Pens (a) Design B (b) Design A
15. 15.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ top bar ]
    [ tab bar ]
    [ filter buttons ]
    [ Save button ]
    [ title text ]
    [ list of items ] (a) filter buttons (b) tab bar (c) list of items (d) Save button
16. 16.True or false: how users feel after is about UI (the look). (a) True (b) False
17. 17.💾 What number does this code show?
    let lives = 4;
    lives = lives - 4;
    lives = lives + 1;
    show(lives);
18. 18.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
19. 19.🔀 What is a user flow? (a) a charging cable (b) a type of font (c) the path through screens (d) a colour theme
20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Map”
    3. open “Score card”
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
21. 21.🔍 Which is the odd one out? (a) the screen layout (b) whether users get lost (c) the theme colours (d) the icon shapes
22. 22.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
23. 23.🎨 Is this about UI or UX: whether users get lost? (a) UI (b) UX
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Badges”
    3. tap the Home tab
    4. open “Friend list”
    5. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
25. 25.🔀 Why plan the user flow before building? (a) to skip testing (b) so each step is clear (c) to add more taps (d) to hide the buttons
26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. tap the Feed tab
    3. open “Score card”
    4. open “Help page”
    Which screen are you on now? (a) Score card (b) Help page (c) Chat (d) Feed
27. 27.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) a phone case (c) pencil and paper (d) a 3D printer
28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Quiz tab
    3. open “Edit photo”
    Which screen are you on now? (a) Edit photo (b) Lessons (c) Quiz (d) Me
29. 29.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ menu icon ]
    [ filter buttons ]
    [ list of items ]
    [ search box ] (a) filter buttons (b) search box (c) menu icon
30. 30.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) the back button (c) a menu button
31. 31.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ title text ]
    [ tab bar ]
    [ menu icon ]
    [ filter buttons ] (a) tab bar (b) title text (c) menu icon
32. 32.Which of these is true of a tab bar? (a) switches main sections (b) hides extra links (c) opens a list of pages (d) goes to the last screen
33. 33.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 20 (c) 3 to 5 (d) 1
34. 34.🔢 In a food-order flow, what comes right after “open the menu”? (a) pay for the order (b) pick a dish (c) check the cart (d) add it to the cart
35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Video”
    3. tap the Home tab
    Which screen are you on now? (a) Home (b) Profile (c) Video (d) Search
36. 36.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Size → Shop → Confirm
    Design B: Home → Item → Pay (a) Design A (b) Design B
37. 37.Which of these is about UI (the look)? (a) how fast a task is done (b) how easy sign-up is (c) how many taps it takes (d) the icon shapes
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Menu: 14 px
    Title: 20 px
    Footer: 16 px
39. 39.True or false: a wireframe shows the real fonts. (a) True (b) False
40. 40.💾 What number does this code show?
    let songs = ["Stars", "Rain", "Kites"];
    songs.push("Sunrise");
    songs.push("Monsoon");
    show(songs.length);

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