App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 142 · 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?
   Title: 19 px
   Body text: 21 px
   Label: 26 px
   Menu: 9 px (a) Body text (b) Title (c) Label (d) Menu
2. 2.🎨 Who should you test the UX with? (a) the app icon (b) real users (c) only yourself (d) nobody
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 10 px
   Hint: 27 px
   Body text: 22 px (a) Body text (b) Hint (c) Menu
4. 4.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
5. 5.Which of these is about UI (the look)? (a) the font size (b) how fast a task is done (c) whether users get lost (d) how users feel after
6. 6.Which of these is about UI (the look)? (a) how easy sign-up is (b) how many taps it takes (c) how users feel after (d) the button colours
7. 7.✏️ A box with a cross in a wireframe usually means ___. (a) a closed app (b) delete this (c) an error (d) a picture goes here
8. 8.True or false: a big, easy tap area is poor button design. (a) True (b) False
9. 9.🔢 In a photo-post flow, which comes FIRST? (a) add a filter (b) post the photo (c) write a caption (d) open the camera screen
10. 10.🔢 In a photo-post flow, what comes right after “add a filter”? (a) write a caption (b) post the photo (c) open the camera screen (d) take the photo
11. 11.True or false: how users feel after is about UX (the experience). (a) False (b) True
12. 12.Which of these is about UX (the experience)? (a) how users feel after (b) the theme colours (c) the button colours (d) the font size
13. 13.🧭 Which part of navigation undoes one move? (a) a menu button (b) the back button (c) a tab bar
14. 14.🔍 Which is the odd one out? (a) how fast a task is done (b) the icon shapes (c) how many taps it takes (d) how users feel after
15. 15.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Badges”
    3. tap Back
    4. open “Map”
    5. tap Back
    Which screen are you on now? (a) Badges (b) Map (c) Lessons (d) Quiz
16. 16.🔢 In a sign-up flow, which comes first: “make a password” or “tap “Sign up””? (a) tap “Sign up” (b) make a password
17. 17.Which of these is true of a menu button? (a) undoes one move (b) shows 3 to 5 icons (c) sits at the bottom (d) hides extra links
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 26 px
    Hint: 10 px
    Title: 26 px (a) Title (b) Label (c) Hint
19. 19.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ Add button ]
    [ filter buttons ]
    [ top bar ]
    [ Save button ] (a) Add button (b) Save button (c) filter buttons
20. 20.💾 What number does this code show?
    let points = 9;
    points = points - 6;
    points = points + 4;
    show(points);
21. 21.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Address → Cart
    Design B: Home → Menu → Cart → Size → Pens → Results
22. 22.🔍 Which is the odd one out? (a) how easy sign-up is (b) whether users get lost (c) the theme colours (d) how fast a task is done
23. 23.💾 pop() takes off the last item. What does this code show?
    let notes = ["Hindi", "Sports", "Science", "Maths", "Music"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Sports (b) Maths (c) Science (d) Hindi
24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Chat tab
    3. open “Edit photo”
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
25. 25.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
26. 26.🌗 Is yellow on white easy or hard to read on a button? (a) hard to read (b) easy to read
27. 27.Which of these is true of the back button? (a) opens a list of pages (b) shows 3 to 5 icons (c) undoes one move (d) hides extra links
28. 28.🔢 In a sign-up flow, which comes FIRST? (a) tap “Sign up” (b) type name and email (c) make a password (d) open the app
29. 29.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 56 px tall
    Back button: 60 px tall
    Send button: 56 px tall
30. 30.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Science", "Hindi"];
    show(notes[0]); (a) Science (b) Hindi (c) Maths
31. 31.🔢 In a sign-up flow, which comes first: “see the home screen” or “type name and email”? (a) see the home screen (b) type name and email
32. 32.Which colour pair is hard to read? (a) black on yellow (b) pale pink on white (c) dark blue on white (d) black on pale grey
33. 33.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) labels on every icon (d) fast-flashing lights
34. 34.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ menu icon ]
    [ top bar ]
    [ search box ]
    [ list of items ]
    [ tab bar ] (a) search box (b) tab bar (c) list of items (d) top bar
35. 35.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
36. 36.🔢 In a quiz-app flow, which comes FIRST? (a) see if it is right (b) see the final score (c) pick an answer (d) tap “Start quiz”
37. 37.🔢 In a photo-post flow, which comes first: “open the camera screen” or “post the photo”? (a) post the photo (b) open the camera screen
38. 38.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 24 px tall. How many px taller must it be?
39. 39.True or false: the sound on/off setting fits saving on the phone. (a) True (b) False
40. 40.True or false: a final design shows the real fonts. (a) True (b) False

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