App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 284 · 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.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) big touch targets (d) sudden loud sounds
2. 2.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
3. 3.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Match report”
   2. tap Back
   3. open “Help page”
   How many times must you tap Back to reach the main screen of this tab?
4. 4.🔘 Our rule: buttons are at least 48 px tall. The Save button is 20 px tall. How many px taller must it be?
5. 5.🔢 In a food-order flow, which comes first: “pay for the order” or “check the cart”? (a) check the cart (b) pay for the order
6. 6.True or false: how many taps it takes is about UI (the look). (a) False (b) True
7. 7.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
   [ filter buttons ]
   [ top bar ]
   [ title text ]
   [ list of items ]
   [ Add button ]
   [ tab bar ] (a) Add button (b) title text (c) list of items (d) top bar
8. 8.🎨 UX stands for user ___. (a) experience (b) example (c) extra (d) express
9. 9.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) in the cloud (b) on the phone
10. 10.🔍 Which is the odd one out? (a) the theme colours (b) whether users get lost (c) the icon shapes (d) the screen layout
11. 11.True or false: a final design uses plain grey boxes. (a) True (b) False
12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. open “Edit photo”
    3. tap Back
    4. open “Edit photo”
    Which screen are you on now? (a) Feed (b) Edit photo (c) Chat (d) Score card
13. 13.🖼️ In this wireframe (top to bottom), what is right below the tab bar?
    [ Save button ]
    [ top bar ]
    [ tab bar ]
    [ menu icon ]
    [ search box ] (a) search box (b) top bar (c) Save button (d) menu icon
14. 14.True or false: the sound on/off setting fits saving on the phone. (a) False (b) True
15. 15.🖼️ In this wireframe (top to bottom), what is right above the top bar?
    [ Save button ]
    [ big picture ]
    [ top bar ]
    [ Add button ]
    [ title text ] (a) Save button (b) title text (c) Add button (d) big picture
16. 16.True or false: a wireframe shows where things go. (a) True (b) False
17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Friend list”
    3. tap Back
    Which screen are you on now? (a) Quiz (b) Lessons (c) Friend list (d) Me
18. 18.💾 What number does this code show?
    let notes = ["Science", "Maths", "Sports", "Hindi"];
    notes.push("Music");
    show(notes.length);
19. 19.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ list of items ]
    [ Save button ]
    [ filter buttons ]
    [ menu icon ]
    [ Add button ]
20. 20.🖼️ How many parts (boxes) does this wireframe have?
    [ Save button ]
    [ filter buttons ]
    [ search box ]
    [ tab bar ]
    [ big picture ]
21. 21.✏️ What is a wireframe? (a) a simple screen sketch (b) a type of password (c) the finished app (d) a charging cable
22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Score card”
    3. open “Help page”
    4. open “Badges”
    5. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
23. 23.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
24. 24.🔍 Which is the odd one out? (a) the font size (b) the icon shapes (c) how fast a task is done (d) the button colours
25. 25.🔢 In a sign-up flow, which comes first: “open the app” or “make a password”? (a) make a password (b) open the app
26. 26.🔢 In a food-order flow, which comes LAST? (a) pick a dish (b) pay for the order (c) add it to the cart (d) track the order
27. 27.Which of these helps everyone use the app? (a) colour as the only clue (b) strong colour contrast (c) sudden loud sounds (d) tiny tap areas
28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Profile tab
    3. open “Score card”
    4. open “Edit photo”
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
29. 29.Which of these fits saving on the phone? (a) chat messages to friends (b) a class leaderboard (c) a shared to-do list (d) a draft you are typing
30. 30.Which of these is true of a final design? (a) looks like the real app (b) uses plain grey boxes (c) is a quick sketch (d) shows where things go
31. 31.💾 What number does this code show?
    let songs = ["Ocean", "Kites", "Sunrise"];
    songs.push("Rain");
    songs.push("Monsoon");
    show(songs.length);
32. 32.Which of these is true of the back button? (a) switches main sections (b) opens a list of pages (c) hides extra links (d) goes to the last screen
33. 33.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 60 px tall
    Start button: 60 px tall
    Save button: 32 px tall (a) Start (b) Help (c) Save
34. 34.True or false: a wireframe uses the final pictures. (a) True (b) False
35. 35.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
36. 36.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a phone case (c) a 3D printer (d) a microphone
37. 37.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Pay
    Design B: Home → Confirm → Address → Shop (a) Design B (b) Design A
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Score card”
    3. tap the Feed tab
    4. open “Help page”
    Which screen are you on now? (a) Help page (b) Map (c) Feed (d) Score card
39. 39.💾 What number does this code show?
    let points = 5;
    points = points - 2;
    points = points + 2;
    show(points);
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Body text: 15 px
    Menu: 21 px
    Hint: 20 px

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