App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 510 · 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 true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe
2. 2.🎨 Fewer taps to finish a task usually means ___. (a) more colours (b) worse UX (c) better UX (d) a bigger app
3. 3.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) the back button (c) a tab bar
4. 4.🔢 In a photo-post flow, which comes FIRST? (a) write a caption (b) open the camera screen (c) post the photo (d) take the photo
5. 5.💾 What number does this code show?
   let lives = 8;
   lives = lives - 6;
   lives = lives + 2;
   show(lives);
6. 6.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) a menu button (c) the back button
7. 7.Which colour pair is hard to read? (a) black on pale grey (b) dark blue on black (c) white on dark green (d) white on black
8. 8.True or false: icons with no meaning is poor button design. (a) False (b) True
9. 9.True or false: buttons almost touching is good button design. (a) False (b) True
10. 10.💾 Where should the app save your last game level: on the phone or in the cloud? (a) in the cloud (b) on the phone
11. 11.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) captions on videos (d) colour as the only clue
12. 12.🔢 In a photo-post flow, what comes right after “add a filter”? (a) take the photo (b) post the photo (c) write a caption (d) open the camera screen
13. 13.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
14. 14.Which of these fits saving on the phone? (a) photos on two devices (b) a class leaderboard (c) a shared to-do list (d) the sound on/off setting
15. 15.🔘 Our rule: buttons are at least 48 px tall. The Send button is 24 px tall. How many px taller must it be?
16. 16.🔍 Which is the odd one out? (a) the screen layout (b) whether users get lost (c) the font size (d) the button colours
17. 17.🔢 In a photo-post flow, which comes LAST? (a) add a filter (b) open the camera screen (c) take the photo (d) post the photo
18. 18.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
19. 19.Which of these is about UI (the look)? (a) the screen layout (b) how fast a task is done (c) how easy sign-up is (d) whether users get lost
20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Match report”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
21. 21.True or false: a final design looks like the real app. (a) False (b) True
22. 22.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
23. 23.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Video”
    3. open “Help page”
    4. tap the Chat tab
    Which screen are you on now? (a) Feed (b) Help page (c) Video (d) Chat
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 14 px
    Body text: 27 px
    Footer: 23 px (a) Footer (b) Title (c) Body text
25. 25.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 64 px tall
    Done button: 72 px tall
    Send button: 36 px tall (a) Cancel (b) Done (c) Send
26. 26.🎨 Is this about UI or UX: the screen layout? (a) UI (b) UX
27. 27.🔘 Our rule: buttons are at least 48 px tall. The Next button is 40 px tall. How many px taller must it be?
28. 28.Which of these is true of a tab bar? (a) hides extra links (b) undoes one move (c) opens a list of pages (d) switches main sections
29. 29.🔘 Our rule: buttons are at least 48 px tall. The Save button is 40 px tall. How many px taller must it be?
30. 30.True or false: the screen layout is about UX (the experience). (a) False (b) True
31. 31.🔢 In a photo-post flow, which comes first: “add a filter” or “take the photo”? (a) take the photo (b) add a filter
32. 32.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
33. 33.True or false: a final design is a quick sketch. (a) True (b) False
34. 34.Which of these is about UX (the experience)? (a) the theme colours (b) the font size (c) how easy sign-up is (d) the icon shapes
35. 35.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Size → Cart
    Design B: Home → Confirm → Address → Menu → Cart → Pens → Pay
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Menu → Search
    Design B: Home → Confirm → Pay → Item → Menu → Size
37. 37.💾 What does this code show? (Positions start at 0.)
    let friends = ["Riya", "Kabir", "Zoya", "Arjun", "Aman"];
    show(friends[3]); (a) Kabir (b) Arjun (c) Zoya (d) Riya
38. 38.True or false: a final design shows where things go. (a) True (b) False
39. 39.🎨 UX stands for user ___. (a) example (b) express (c) extra (d) experience
40. 40.True or false: the button colours is about UX (the experience). (a) True (b) False

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