App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 910 · 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 Feed, Chat, Settings. You start on Feed, then:
   1. open “Video”
   2. open “Badges”
   3. open “Score card”
   4. open “Video”
   5. tap the Settings tab
   Which screen are you on now? (a) Video (b) Badges (c) Settings (d) Score card
2. 2.Which of these is about UI (the look)? (a) the theme colours (b) how easy sign-up is (c) how many taps it takes (d) how users feel after
3. 3.💾 What number does this code show?
   let notes = ["Maths", "Sports", "Science"];
   notes.push("Music");
   notes.push("Hindi");
   show(notes.length);
4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Home tab
   2. tap the Search tab
   3. open “Video”
   Which screen are you on now? (a) Search (b) Home (c) Video (d) Profile
5. 5.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 3 to 5 (c) 20 (d) 10 to 12
6. 6.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Feed tab
   2. open “Badges”
   3. open “Badges”
   How many times must you tap Back to reach the main screen of this tab?
7. 7.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
8. 8.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
9. 9.🖼️ How many parts (boxes) does this wireframe have?
   [ search box ]
   [ title text ]
   [ filter buttons ]
   [ Save button ]
   [ list of items ]
   [ menu icon ]
10. 10.🔢 In a sign-up flow, which comes first: “type name and email” or “make a password”? (a) type name and email (b) make a password
11. 11.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) sudden loud sounds (d) icons with no labels
12. 12.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
13. 13.🔘 Our rule: buttons are at least 48 px tall. The Send button is 20 px tall. How many px taller must it be?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Hint: 14 px
    Body text: 23 px
    Title: 16 px (a) Caption (b) Body text (c) Hint (d) Title
15. 15.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Confirm → Cart
    Design B: Home → Menu → Cart (a) Design A (b) Design B
16. 16.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
17. 17.💾 What number does this code show?
    let notes = ["Music", "Hindi"];
    notes.push("Maths");
    show(notes.length);
18. 18.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 24 px tall
    Next button: 48 px tall
    Cancel button: 48 px tall (a) Help (b) Cancel (c) Next
19. 19.🔘 Our rule: buttons are at least 48 px tall. The Save button is 24 px tall. How many px taller must it be?
20. 20.True or false: whether users get lost is about UX (the experience). (a) False (b) True
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Title: 17 px
    Hint: 17 px
    Menu: 23 px (a) Caption (b) Title (c) Hint (d) Menu
22. 22.🔢 In a sign-up flow, which comes FIRST? (a) open the app (b) enter the code sent (c) type name and email (d) tap “Sign up”
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 17 px
    Menu: 15 px
    Title: 10 px
    Label: 19 px
    Caption: 20 px
24. 24.🔢 In a photo-post flow, what comes right after “add a filter”? (a) open the camera screen (b) take the photo (c) write a caption (d) post the photo
25. 25.💾 What number does this code show?
    let friends = ["Riya", "Arjun"];
    friends.push("Meera");
    show(friends.length);
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Hint: 24 px
    Title: 14 px
    Footer: 24 px
    Label: 19 px
27. 27.Which of these fits saving in the cloud? (a) notes to read offline (b) a draft you are typing (c) your last game level (d) a class leaderboard
28. 28.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 64 px tall
    Next button: 32 px tall
    Help button: 48 px tall (a) Help (b) Cancel (c) Next
29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. open “Badges”
    4. tap the Lessons tab
    Which screen are you on now? (a) Score card (b) Badges (c) Lessons (d) Quiz
30. 30.Which of these fits saving in the cloud? (a) a draft you are typing (b) chat messages to friends (c) the sound on/off setting (d) your last game level
31. 31.True or false: icons with no meaning is poor button design. (a) False (b) True
32. 32.🔀 What is a user flow? (a) a charging cable (b) a type of font (c) a colour theme (d) the path through screens
33. 33.Which of these is true of a wireframe? (a) uses the final pictures (b) shows where things go (c) shows the real fonts (d) has the real colours
34. 34.True or false: a clear word like Save is good button design. (a) True (b) False
35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap the Lessons tab
    3. tap the Me tab
    4. open “Friend list”
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
36. 36.🧭 Which part of navigation goes to the last screen? (a) a menu button (b) the back button (c) a tab bar
37. 37.🧭 Which part of navigation switches main sections? (a) the back button (b) a tab bar (c) a menu button
38. 38.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 19 px
    Hint: 20 px
    Menu: 15 px
    Caption: 20 px
40. 40.True or false: a class leaderboard fits saving in the cloud. (a) False (b) True

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