App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 77 · 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.🔢 In a food-order flow, which comes first: “pick a dish” or “track the order”? (a) track the order (b) pick a dish
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 26 px
   Menu: 13 px
   Title: 25 px (a) Footer (b) Title (c) Menu
3. 3.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Offers → Item → Shop
   Design B: Home → Address → Pens → Confirm → Results
4. 4.Which of these is about UX (the experience)? (a) the icon shapes (b) the font size (c) how many taps it takes (d) the screen layout
5. 5.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) at the bottom (c) inside a button (d) in the middle
6. 6.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
7. 7.True or false: the button colours is about UI (the look). (a) True (b) False
8. 8.Which colour pair is hard to read? (a) dark blue on white (b) red on green (c) white on dark green (d) black on yellow
9. 9.True or false: your last game level fits saving in the cloud. (a) True (b) False
10. 10.🔘 Our rule: buttons are at least 48 px tall. The Start button is 44 px tall. How many px taller must it be?
11. 11.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) in the cloud (b) on the phone
12. 12.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
13. 13.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) in the cloud (b) on the phone
14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Score card”
    3. tap Back
    4. open “Help page”
    Which screen are you on now? (a) Help page (b) Chat (c) Score card (d) Feed
15. 15.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
16. 16.🧭 Which part of navigation goes to the last screen? (a) a tab bar (b) a menu button (c) the back button
17. 17.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
18. 18.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
19. 19.Which of these is true of the back button? (a) sits at the bottom (b) shows 3 to 5 icons (c) goes to the last screen (d) switches main sections
20. 20.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Footer: 19 px
    Hint: 18 px
    Label: 24 px
22. 22.🔀 In a good flow, each screen should lead to ___. (a) a dead end (b) a random page (c) the same screen (d) a clear next step
23. 23.🔍 Which is the odd one out? (a) whether users get lost (b) how easy sign-up is (c) how many taps it takes (d) the font size
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Hint: 12 px
    Title: 19 px
    Menu: 14 px
    Body text: 16 px
25. 25.💾 What number does this code show?
    let songs = ["Monsoon", "Sunrise"];
    songs.push("Kites");
    songs.push("Rain");
    show(songs.length);
26. 26.Which of these is about UX (the experience)? (a) the button colours (b) the theme colours (c) whether users get lost (d) the font size
27. 27.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
28. 28.Which of these is true of a tab bar? (a) undoes one move (b) sits at the bottom (c) goes to the last screen (d) opens a list of pages
29. 29.🔢 In a photo-post flow, what comes right after “take the photo”? (a) add a filter (b) open the camera screen (c) write a caption (d) post the photo
30. 30.🌗 Is dark blue on black easy or hard to read on a button? (a) easy to read (b) hard to read
31. 31.🔢 In a sign-up flow, what comes right after “open the app”? (a) type name and email (b) enter the code sent (c) make a password (d) tap “Sign up”
32. 32.True or false: a wireframe shows the real fonts. (a) True (b) False
33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. open “Match report”
    4. tap Back
    5. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
34. 34.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
35. 35.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 32 px tall
    Done button: 52 px tall
    Help button: 68 px tall
    Next button: 68 px tall (a) Done (b) Next (c) Cancel (d) Help
36. 36.True or false: photos on two devices fits saving on the phone. (a) True (b) False
37. 37.🔢 In a sign-up flow, which comes first: “see the home screen” or “open the app”? (a) see the home screen (b) open the app
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Title: 12 px
    Label: 18 px
    Hint: 14 px
39. 39.🎨 Is this about UI or UX: the screen layout? (a) UX (b) UI
40. 40.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI

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