App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 124 · 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. How many texts on this screen are too small?
   Footer: 20 px
   Label: 16 px
   Title: 18 px
2. 2.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) sudden loud sounds (d) tiny tap areas
3. 3.Which of these is true of a tab bar? (a) switches main sections (b) opens a list of pages (c) goes to the last screen (d) undoes one move
4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Profile tab
   2. open “Video”
   3. tap Back
   4. open “Video”
   How many times must you tap Back to reach the main screen of this tab?
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 11 px
   Body text: 18 px
   Title: 21 px
   Hint: 18 px
   Caption: 27 px (a) Title (b) Body text (c) Hint (d) Label
6. 6.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) write a caption (b) post the photo (c) take the photo (d) add a filter
7. 7.🔢 In a sign-up flow, which comes FIRST? (a) open the app (b) make a password (c) enter the code sent (d) see the home screen
8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Home tab
   2. open “Score card”
   3. open “Video”
   Which screen are you on now? (a) Score card (b) Home (c) Search (d) Video
9. 9.🖼️ In this wireframe (top to bottom), what is right above the search box?
   [ Add button ]
   [ big picture ]
   [ search box ]
   [ list of items ]
   [ Save button ] (a) list of items (b) big picture (c) Add button (d) Save button
10. 10.🔢 In a photo-post flow, which comes FIRST? (a) post the photo (b) take the photo (c) add a filter (d) open the camera screen
11. 11.True or false: a shared to-do list fits saving on the phone. (a) False (b) True
12. 12.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
13. 13.True or false: chat messages to friends fits saving on the phone. (a) False (b) True
14. 14.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Size → Confirm → Search
    Design B: Home → Item → Address → Size → Cart → Search → Pay (a) Design B (b) Design A
15. 15.🎨 Who should you test the UX with? (a) nobody (b) the app icon (c) real users (d) only yourself
16. 16.🎨 Fewer taps to finish a task usually means ___. (a) more colours (b) better UX (c) worse UX (d) a bigger app
17. 17.True or false: strong colour contrast is good button design. (a) False (b) True
18. 18.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ title text ]
    [ Add button ]
    [ Save button ]
    [ search box ] (a) Add button (b) title text (c) search box
19. 19.True or false: the screen layout is about UX (the experience). (a) True (b) False
20. 20.Which of these is about UX (the experience)? (a) the screen layout (b) the button colours (c) the font size (d) how many taps it takes
21. 21.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
22. 22.🔢 In a quiz-app flow, which comes first: “pick an answer” or “see the final score”? (a) see the final score (b) pick an answer
23. 23.🔢 In a quiz-app flow, which comes first: “see the final score” or “see if it is right”? (a) see the final score (b) see if it is right
24. 24.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) good UI but poor UX (c) good UX but poor UI (d) no UI at all
26. 26.🔢 In a quiz-app flow, which comes LAST? (a) read a question (b) tap “Start quiz” (c) see the final score (d) see if it is right
27. 27.Which of these fits saving on the phone? (a) a shared to-do list (b) the sound on/off setting (c) a class leaderboard (d) chat messages to friends
28. 28.Which of these fits saving in the cloud? (a) a draft you are typing (b) the sound on/off setting (c) notes to read offline (d) chat messages to friends
29. 29.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
30. 30.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Offers → Pens → Confirm
    Design B: Home → Confirm → Size (a) Design B (b) Design A
31. 31.💾 Data saved only on the phone is lost when ___. (a) you send a message (b) the screen turns off (c) the phone is lost (d) the app is closed
32. 32.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ search box ]
    [ list of items ]
    [ Save button ]
    [ top bar ]
    [ menu icon ] (a) search box (b) top bar (c) list of items (d) menu icon
33. 33.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: a big, easy tap area is poor button design. (a) True (b) False
35. 35.💾 What number does this code show?
    let friends = ["Riya", "Zoya"];
    friends.push("Meera");
    friends.push("Aman");
    show(friends.length);
36. 36.Which of these is about UI (the look)? (a) how fast a task is done (b) the theme colours (c) how easy sign-up is (d) whether users get lost
37. 37.💾 What number does this code show?
    let songs = ["Stars", "Rain", "Kites"];
    songs.push("Monsoon");
    show(songs.length);
38. 38.Which of these is about UI (the look)? (a) the font size (b) how easy sign-up is (c) how users feel after (d) whether users get lost
39. 39.Which colour pair is hard to read? (a) black on yellow (b) dark blue on white (c) white on black (d) light grey on white
40. 40.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud

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