App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 497 · 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.Which of these is true of a final design? (a) has no real colours (b) uses plain grey boxes (c) uses the final pictures (d) shows where things go
2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Friend list”
   2. tap the Search tab
   3. tap the Search tab
   4. open “Edit photo”
   Which screen are you on now? (a) Home (b) Edit photo (c) Friend list (d) Search
3. 3.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) labels on every icon (d) fast-flashing lights
4. 4.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
5. 5.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) sudden loud sounds (d) labels on every icon
6. 6.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Cancel button: 64 px tall
   Help button: 68 px tall
   Back button: 52 px tall
   Done button: 44 px tall (a) Help (b) Back (c) Cancel (d) Done
7. 7.Which of these is about UI (the look)? (a) how easy sign-up is (b) how users feel after (c) whether users get lost (d) the button colours
8. 8.True or false: a final design has no real colours. (a) True (b) False
9. 9.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
10. 10.🔀 What is a user flow? (a) a colour theme (b) a type of font (c) the path through screens (d) a charging cable
11. 11.🔢 In a quiz-app flow, which comes LAST? (a) read a question (b) pick an answer (c) see the final score (d) see if it is right
12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Badges”
    3. open “Help page”
    Which screen are you on now? (a) Quiz (b) Help page (c) Lessons (d) Badges
13. 13.Which of these is about UX (the experience)? (a) the button colours (b) the screen layout (c) how many taps it takes (d) the font size
14. 14.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Address → Pens
    Design B: Home → Pay → Cart → Confirm → Results (a) Design B (b) Design A
15. 15.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Chat tab
    3. open “Badges”
    4. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
16. 16.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
17. 17.💾 Which can hold many values in order? (a) a button (b) a list (c) a single number (d) a switch
18. 18.Which of these is about UX (the experience)? (a) the theme colours (b) the icon shapes (c) the screen layout (d) how easy sign-up is
19. 19.💾 pop() takes off the last item. What does this code show?
    let notes = ["Music", "Science", "Maths", "Sports"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Music (c) Sports (d) Science
20. 20.🔢 In a quiz-app flow, which comes FIRST? (a) tap “Start quiz” (b) see the final score (c) pick an answer (d) see if it is right
21. 21.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
22. 22.🎨 Who should you test the UX with? (a) only yourself (b) real users (c) the app icon (d) nobody
23. 23.🖼️ In this wireframe (top to bottom), what is right above the title text?
    [ Save button ]
    [ Add button ]
    [ list of items ]
    [ title text ] (a) list of items (b) Add button (c) Save button
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Label: 26 px
    Body text: 19 px
    Menu: 12 px
    Hint: 23 px (a) Menu (b) Label (c) Title (d) Body text
26. 26.Which of these is about UI (the look)? (a) how users feel after (b) how fast a task is done (c) the icon shapes (d) how many taps it takes
27. 27.🔍 Which is the odd one out? (a) the theme colours (b) how many taps it takes (c) whether users get lost (d) how fast a task is done
28. 28.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ title text ]
    [ top bar ]
    [ list of items ]
    [ search box ] (a) title text (b) search box (c) top bar
29. 29.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
30. 30.Which of these fits saving in the cloud? (a) notes to read offline (b) a draft you are typing (c) a class leaderboard (d) your last game level
31. 31.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) tiny tap areas (d) fast-flashing lights
32. 32.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) open the app (b) type name and email (c) make a password (d) see the home screen
33. 33.🔢 In a quiz-app flow, which comes first: “read a question” or “pick an answer”? (a) read a question (b) pick an answer
34. 34.🔍 Which is the odd one out? (a) the font size (b) how fast a task is done (c) how easy sign-up is (d) whether users get lost
35. 35.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
36. 36.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Address → Results → Shop → Cart → Search
    Design B: Home → Item → Shop → Results → Address (a) Design B (b) Design A
37. 37.🔢 In a photo-post flow, which comes LAST? (a) add a filter (b) post the photo (c) open the camera screen (d) take the photo
38. 38.True or false: a wireframe has the real colours. (a) True (b) False
39. 39.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
40. 40.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Results → Size → Shop → Menu → Cart → Offers
    Design B: Home → Pens → Pay → Confirm → Menu → Cart

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