App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 554 · 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.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Score card”
   2. open “Badges”
   3. tap the Profile tab
   4. open “Friend list”
   How many times must you tap Back to reach the main screen of this tab?
2. 2.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Save button: 56 px tall
   Next button: 40 px tall
   Start button: 72 px tall
   Send button: 72 px tall (a) Save (b) Send (c) Next (d) Start
3. 3.🖼️ In this wireframe (top to bottom), what is right above the search box?
   [ menu icon ]
   [ search box ]
   [ top bar ]
   [ list of items ]
   [ tab bar ] (a) list of items (b) top bar (c) tab bar (d) menu icon
4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Video”
   2. tap Back
   3. open “Edit photo”
   4. open “Score card”
   5. tap the Search tab
   Which screen are you on now? (a) Score card (b) Video (c) Edit photo (d) Search
5. 5.🎨 UI stands for user ___. (a) interface (b) idea (c) input (d) internet
6. 6.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
7. 7.True or false: how fast a task is done is about UI (the look). (a) False (b) True
8. 8.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Back button: 56 px tall
   Save button: 32 px tall
   Done button: 48 px tall (a) Back (b) Save (c) Done
9. 9.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
10. 10.💾 Saving data in the cloud lets you ___. (a) skip the internet (b) never need a password (c) use it on any device (d) shrink the app
11. 11.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) good UX but poor UI (c) no UI at all (d) good UI but poor UX
12. 12.🔢 In a food-order flow, which comes first: “open the menu” or “check the cart”? (a) check the cart (b) open the menu
13. 13.Which of these is about UI (the look)? (a) how easy sign-up is (b) the icon shapes (c) whether users get lost (d) how users feel after
14. 14.✏️ What is the easiest way to draw a first wireframe? (a) a phone case (b) a microphone (c) pencil and paper (d) a 3D printer
15. 15.💾 What number does this code show?
    let notes = ["Maths", "Hindi", "Science", "Art"];
    notes.push("Music");
    notes.push("Sports");
    show(notes.length);
16. 16.True or false: a wireframe uses plain grey boxes. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) the screen layout (b) the icon shapes (c) whether users get lost (d) the theme colours
18. 18.Which of these is true of a tab bar? (a) goes to the last screen (b) hides extra links (c) sits at the bottom (d) opens a list of pages
19. 19.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) tiny tap areas (d) fast-flashing lights
20. 20.Which of these is true of the back button? (a) switches main sections (b) goes to the last screen (c) opens a list of pages (d) hides extra links
21. 21.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Confirm → Pay → Results → Pens → Shop
    Design B: Home → Item → Menu
22. 22.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ top bar ]
    [ list of items ]
    [ search box ]
    [ big picture ] (a) big picture (b) top bar (c) list of items
23. 23.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 48 px tall
    Start button: 28 px tall
    Send button: 72 px tall
    Next button: 68 px tall (a) Next (b) Cancel (c) Start (d) Send
24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Score card”
    3. tap Back
    4. open “Map”
    5. tap the Feed tab
    Which screen are you on now? (a) Feed (b) Chat (c) Map (d) Score card
25. 25.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 24 px tall
    Send button: 64 px tall
    Cancel button: 60 px tall (a) Cancel (b) Save (c) Send
26. 26.True or false: whether users get lost is about UI (the look). (a) True (b) False
27. 27.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ filter buttons ]
    [ search box ]
    [ top bar ]
    [ title text ]
    [ Add button ]
28. 28.💾 What number does this code show?
    let songs = ["Rain", "Ocean", "Sunrise", "Stars"];
    songs.push("Monsoon");
    songs.push("Kites");
    show(songs.length);
29. 29.Which of these is true of a tab bar? (a) opens a list of pages (b) switches main sections (c) goes to the last screen (d) undoes one move
30. 30.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
31. 31.🔢 In a food-order flow, which comes first: “track the order” or “open the menu”? (a) track the order (b) open the menu
32. 32.🔢 In a food-order flow, which comes first: “open the menu” or “track the order”? (a) open the menu (b) track the order
33. 33.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. open “Map”
    4. tap the Quiz tab
    5. tap the Quiz tab
    Which screen are you on now? (a) Lessons (b) Score card (c) Map (d) Quiz
34. 34.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 56 px tall
    Help button: 36 px tall
    Done button: 68 px tall (a) Done (b) Back (c) Help
35. 35.Which colour pair is hard to read? (a) white on dark green (b) white on black (c) black on yellow (d) red on green
36. 36.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it runs the app (c) it adds colours (d) it saves data
37. 37.🌗 Is red on green easy or hard to read on a button? (a) easy to read (b) hard to read
38. 38.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
39. 39.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ list of items ]
    [ title text ]
    [ menu icon ]
    [ Add button ] (a) Add button (b) title text (c) menu icon
40. 40.True or false: grey text on grey is good button design. (a) True (b) False

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