App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 530 · 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.🔀 A screen with no way forward or back is called a ___. (a) dead end (b) home screen (c) shortcut (d) tab bar
2. 2.💾 What number does this code show?
   let songs = ["Sunrise", "Ocean"];
   songs.push("Monsoon");
   songs.push("Kites");
   show(songs.length);
3. 3.💾 pop() takes off the last item. What does this code show?
   let notes = ["Maths", "Science", "Art", "Hindi"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Maths (b) Hindi (c) Art (d) Science
4. 4.True or false: a wireframe uses plain grey boxes. (a) False (b) True
5. 5.True or false: the font size is about UI (the look). (a) False (b) True
6. 6.💾 Data saved only on the phone is lost when ___. (a) the screen turns off (b) the app is closed (c) the phone is lost (d) you send a message
7. 7.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
8. 8.True or false: buttons almost touching is poor button design. (a) True (b) False
9. 9.🔘 Is this good or poor button design: a tiny 20 px button? (a) good design (b) poor design
10. 10.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Address
    Design B: Home → Pens → Confirm → Address → Cart → Pay → Item (a) Design A (b) Design B
11. 11.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Match report”
    3. tap Back
    4. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
12. 12.🔀 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
13. 13.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
14. 14.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) post the photo (b) take the photo (c) add a filter (d) write a caption
15. 15.Which of these is about UI (the look)? (a) how users feel after (b) whether users get lost (c) how easy sign-up is (d) the screen layout
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Item → Size
    Design B: Home → Pens → Pay → Results → Address → Confirm → Shop
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Hint: 19 px
    Menu: 9 px
    Caption: 18 px (a) Menu (b) Title (c) Hint (d) Caption
18. 18.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Settings tab
    3. tap the Feed tab
    Which screen are you on now? (a) Edit photo (b) Settings (c) Feed (d) Chat
19. 19.🔍 Which is the odd one out? (a) how easy sign-up is (b) whether users get lost (c) how fast a task is done (d) the screen layout
20. 20.Which of these is true of a final design? (a) uses plain grey boxes (b) shows the real fonts (c) is a quick sketch (d) shows where things go
21. 21.🔢 In a sign-up flow, what comes right after “open the app”? (a) enter the code sent (b) see the home screen (c) type name and email (d) tap “Sign up”
22. 22.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “pick an answer”? (a) tap “Start quiz” (b) pick an answer
23. 23.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Pay → Item → Confirm → Address → Size
    Design B: Home → Pay → Search
24. 24.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) captions on videos (d) sudden loud sounds
25. 25.🔍 Which is the odd one out? (a) how fast a task is done (b) the icon shapes (c) the screen layout (d) the theme colours
26. 26.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 56 px tall
    Help button: 48 px tall
    Done button: 44 px tall
    Save button: 36 px tall
27. 27.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
28. 28.Which of these is true of a tab bar? (a) undoes one move (b) hides extra links (c) goes to the last screen (d) switches main sections
29. 29.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
30. 30.🖼️ How many parts (boxes) does this wireframe have?
    [ list of items ]
    [ title text ]
    [ big picture ]
    [ filter buttons ]
    [ top bar ]
    [ search box ]
31. 31.🎨 Is this about UI or UX: the screen layout? (a) UI (b) UX
32. 32.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) colour as the only clue (d) strong colour contrast
33. 33.🔢 In a quiz-app flow, which comes first: “see the final score” or “tap “Start quiz””? (a) see the final score (b) tap “Start quiz”
34. 34.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it runs the app (c) it saves data (d) it adds colours
35. 35.🔍 Which is the odd one out? (a) the screen layout (b) the button colours (c) the font size (d) how easy sign-up is
36. 36.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) big touch targets (d) tiny tap areas
37. 37.🔍 Which is the odd one out? (a) fast-flashing lights (b) big touch targets (c) strong colour contrast (d) labels on every icon
38. 38.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) tap “Start quiz” (b) see the final score (c) see if it is right (d) read a question
39. 39.🔀 What is a user flow? (a) a charging cable (b) a colour theme (c) a type of font (d) the path through screens
40. 40.Which of these helps everyone use the app? (a) colour as the only clue (b) text that can grow (c) icons with no labels (d) sudden loud sounds

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