App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 715 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 27 px
   Menu: 17 px
   Footer: 10 px
   Body text: 19 px (a) Footer (b) Body text (c) Menu (d) Label
2. 2.Which of these is about UI (the look)? (a) how easy sign-up is (b) how users feel after (c) the font size (d) whether users get lost
3. 3.Which of these is true of a wireframe? (a) uses the final pictures (b) is a quick sketch (c) shows the real fonts (d) looks like the real app
4. 4.🔍 Which is the odd one out? (a) the theme colours (b) the icon shapes (c) how users feel after (d) the button colours
5. 5.True or false: how easy sign-up is is about UX (the experience). (a) False (b) True
6. 6.🎨 Is this about UI or UX: the theme colours? (a) UI (b) UX
7. 7.🔍 Which is the odd one out? (a) whether users get lost (b) how many taps it takes (c) the font size (d) how easy sign-up is
8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Help page”
   2. tap Back
   3. tap the Profile tab
   How many times must you tap Back to reach the main screen of this tab?
9. 9.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
10. 10.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 72 px tall
    Next button: 60 px tall
    Start button: 64 px tall
    Help button: 44 px tall (a) Next (b) Start (c) Help (d) Done
11. 11.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Friend list”
    3. tap Back
    Which screen are you on now? (a) Feed (b) Chat (c) Friend list (d) Settings
13. 13.🖼️ How many parts (boxes) does this wireframe have?
    [ top bar ]
    [ Add button ]
    [ list of items ]
    [ search box ]
    [ title text ]
    [ Save button ]
14. 14.🔢 In a sign-up flow, which comes FIRST? (a) tap “Sign up” (b) open the app (c) type name and email (d) make a password
15. 15.🎨 Fewer taps to finish a task usually means ___. (a) better UX (b) worse UX (c) a bigger app (d) more colours
16. 16.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a dead end (c) a random page (d) a clear next step
17. 17.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ filter buttons ]
    [ title text ]
    [ Save button ]
    [ menu icon ] (a) menu icon (b) filter buttons (c) Save button
18. 18.Which colour pair is hard to read? (a) white on dark green (b) white on black (c) black on yellow (d) light grey on white
19. 19.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) at the bottom (c) inside a button (d) nowhere
20. 20.🧭 Which part of navigation hides extra links? (a) the back button (b) a tab bar (c) a menu button
21. 21.Which of these fits saving in the cloud? (a) notes to read offline (b) the sound on/off setting (c) your last game level (d) a class leaderboard
22. 22.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) colour as the only clue (d) text that can grow
23. 23.✏️ Why draw a wireframe before coding? (a) it runs the app (b) changes are quick (c) it adds colours (d) it saves data
24. 24.🔢 In a quiz-app flow, which comes FIRST? (a) read a question (b) tap “Start quiz” (c) pick an answer (d) see the final score
25. 25.True or false: how many taps it takes is about UI (the look). (a) True (b) False
26. 26.🔘 Is this good or poor button design: a tiny 20 px button? (a) good design (b) poor design
27. 27.🔢 In a food-order flow, which comes first: “open the menu” or “add it to the cart”? (a) open the menu (b) add it to the cart
28. 28.💾 What does this code show? (Positions start at 0.)
    let friends = ["Arjun", "Zoya", "Riya"];
    show(friends[0]); (a) Arjun (b) Riya (c) Zoya
29. 29.🌗 Is red on green easy or hard to read on a button? (a) easy to read (b) hard to read
30. 30.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap the Home tab
    3. open “Help page”
    4. tap Back
    5. open “Match report”
    Which screen are you on now? (a) Home (b) Help page (c) Score card (d) Match report
31. 31.🔘 Our rule: buttons are at least 48 px tall. The Help button is 20 px tall. How many px taller must it be?
32. 32.🔍 Which is the odd one out? (a) whether users get lost (b) the button colours (c) the icon shapes (d) the theme colours
33. 33.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) labels on every icon
34. 34.🔢 In a sign-up flow, which comes first: “open the app” or “type name and email”? (a) type name and email (b) open the app
35. 35.🔍 Which is the odd one out? (a) the font size (b) the button colours (c) how fast a task is done (d) the icon shapes
36. 36.Which of these is true of a final design? (a) is a quick sketch (b) has the real colours (c) uses plain grey boxes (d) has no real colours
37. 37.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
38. 38.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
39. 39.Which of these fits saving on the phone? (a) photos on two devices (b) a draft you are typing (c) chat messages to friends (d) a shared to-do list
40. 40.🔢 In a photo-post flow, which comes first: “write a caption” or “post the photo”? (a) post the photo (b) write a caption

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students