App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 668 · 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.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Menu → Pay → Item → Pens → Shop
   Design B: Home → Shop → Size → Item → Menu
2. 2.🔢 In a sign-up flow, which comes FIRST? (a) enter the code sent (b) see the home screen (c) type name and email (d) open the app
3. 3.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Address → Size → Pens → Shop → Results
   Design B: Home → Pay → Address → Results → Pens → Shop → Item
4. 4.🔢 In a quiz-app flow, which comes first: “see if it is right” or “pick an answer”? (a) see if it is right (b) pick an answer
5. 5.True or false: the theme colours is about UX (the experience). (a) True (b) False
6. 6.💾 pop() takes off the last item. What does this code show?
   let songs = ["Monsoon", "Sunrise", "Kites"];
   songs.pop();
   show(songs[songs.length - 1]); (a) Monsoon (b) Sunrise (c) Kites
7. 7.Which of these fits saving in the cloud? (a) the sound on/off setting (b) chat messages to friends (c) a draft you are typing (d) notes to read offline
8. 8.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Shop → Size → Pens → Address → Offers
   Design B: Home → Confirm → Pens (a) Design A (b) Design B
9. 9.🔀 What is a user flow? (a) a charging cable (b) the path through screens (c) a type of font (d) a colour theme
10. 10.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 32 px tall
    Help button: 52 px tall
    Start button: 52 px tall
    Cancel button: 64 px tall (a) Start (b) Help (c) Cancel (d) Save
11. 11.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Confirm
    Design B: Home → Address → Offers → Pay → Cart → Shop
12. 12.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
13. 13.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. open “Help page”
    3. tap Back
    4. tap Back
    5. open “Badges”
    Which screen are you on now? (a) Chat (b) Badges (c) Feed (d) Help page
14. 14.True or false: a wireframe shows the real fonts. (a) True (b) False
15. 15.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ filter buttons ]
    [ big picture ]
    [ Add button ]
    [ title text ]
    [ tab bar ] (a) Add button (b) tab bar (c) big picture (d) title text
16. 16.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a sound (d) a bright colour
17. 17.🔀 Why plan the user flow before building? (a) to skip testing (b) so each step is clear (c) to add more taps (d) to hide the buttons
18. 18.🖼️ In this wireframe (top to bottom), what is right above the title text?
    [ search box ]
    [ title text ]
    [ list of items ]
    [ Save button ] (a) Save button (b) list of items (c) search box
19. 19.🔢 In a photo-post flow, what comes right after “take the photo”? (a) open the camera screen (b) post the photo (c) write a caption (d) add a filter
20. 20.🧭 Which part of navigation undoes one move? (a) a tab bar (b) the back button (c) a menu button
21. 21.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 52 px tall
    Start button: 52 px tall
    Cancel button: 48 px tall
    Help button: 40 px tall
22. 22.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Video”
    3. tap the Lessons tab
    4. open “Map”
    5. open “Map”
    Which screen are you on now? (a) Video (b) Lessons (c) Map (d) Edit photo
23. 23.True or false: grey text on grey is poor button design. (a) True (b) False
24. 24.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Pay → Shop → Search → Menu → Size
    Design B: Home → Shop → Pens → Size
25. 25.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) labels on every icon (d) colour as the only clue
26. 26.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) switches main sections
27. 27.✏️ What is a wireframe? (a) a charging cable (b) a simple screen sketch (c) the finished app (d) a type of password
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 26 px
    Footer: 18 px
    Menu: 14 px (a) Caption (b) Menu (c) Footer
29. 29.Which colour pair is easy to read? (a) pale pink on white (b) dark blue on black (c) white on black (d) light grey on white
30. 30.🔍 Which is the odd one out? (a) how fast a task is done (b) the theme colours (c) the screen layout (d) the button colours
31. 31.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Match report”
    3. tap the Lessons tab
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
32. 32.Which of these fits saving on the phone? (a) a class leaderboard (b) your last game level (c) chat messages to friends (d) a shared to-do list
33. 33.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
34. 34.🔢 In a photo-post flow, which comes first: “write a caption” or “open the camera screen”? (a) write a caption (b) open the camera screen
35. 35.Which of these is about UI (the look)? (a) the button colours (b) how many taps it takes (c) how fast a task is done (d) how easy sign-up is
36. 36.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
37. 37.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
38. 38.Which of these is true of a wireframe? (a) has the real colours (b) looks like the real app (c) shows the real fonts (d) is a quick sketch
39. 39.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) labels on every icon (d) sudden loud sounds
40. 40.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder

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