App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 470 · 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.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
2. 2.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Offers → Item → Pens → Address → Confirm
   Design B: Home → Address → Size → Pens (a) Design B (b) Design A
3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Edit photo”
   2. open “Map”
   3. tap the Profile tab
   Which screen are you on now? (a) Map (b) Home (c) Edit photo (d) Profile
4. 4.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) colour as the only clue (d) text that can grow
5. 5.🔍 Which is the odd one out? (a) the screen layout (b) the font size (c) the theme colours (d) how fast a task is done
6. 6.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) shows where things go (d) uses the final pictures
7. 7.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) sits at the bottom (c) hides extra links (d) undoes one move
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 18 px
   Body text: 21 px
   Title: 13 px
   Hint: 20 px
   Menu: 13 px
9. 9.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) good UX but poor UI (c) no UI at all (d) good UI but poor UX
10. 10.True or false: whether users get lost is about UX (the experience). (a) False (b) True
11. 11.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI
12. 12.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) in the cloud (b) on the phone
13. 13.💾 What number does this code show?
    let stars = 6;
    stars = stars - 3;
    stars = stars + 1;
    show(stars);
14. 14.🔘 Our rule: buttons are at least 48 px tall. The Next button is 44 px tall. How many px taller must it be?
15. 15.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) in the cloud (b) on the phone
16. 16.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ big picture ]
    [ menu icon ]
    [ list of items ]
    [ top bar ] (a) list of items (b) menu icon (c) big picture (d) top bar
17. 17.Which colour pair is hard to read? (a) black on pale grey (b) black on yellow (c) white on black (d) pale pink on white
18. 18.💾 What number does this code show?
    let songs = ["Sunrise", "Ocean", "Rain"];
    songs.push("Monsoon");
    show(songs.length);
19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Match report”
    3. open “Help page”
    4. tap the Quiz tab
    Which screen are you on now? (a) Help page (b) Quiz (c) Edit photo (d) Match report
20. 20.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Settings tab
    3. open “Badges”
    4. tap Back
    Which screen are you on now? (a) Feed (b) Badges (c) Settings (d) Friend list
21. 21.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) tap “Start quiz” (b) see if it is right (c) see the final score (d) read a question
22. 22.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
23. 23.🔢 In a food-order flow, which comes FIRST? (a) check the cart (b) open the menu (c) add it to the cart (d) pick a dish
24. 24.🖼️ In this wireframe (top to bottom), what is right above the list of items?
    [ Add button ]
    [ Save button ]
    [ top bar ]
    [ search box ]
    [ filter buttons ]
    [ list of items ] (a) Save button (b) search box (c) top bar (d) filter buttons
25. 25.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
26. 26.🧭 What does the back button usually do? (a) deletes the page (b) opens settings (c) closes all apps (d) goes to the last screen
27. 27.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
28. 28.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
29. 29.🧭 Why should every screen show where you are? (a) to hide the menu (b) to use more battery (c) so users do not get lost (d) to look busy
30. 30.True or false: a wireframe uses plain grey boxes. (a) False (b) True
31. 31.🖼️ How many parts (boxes) does this wireframe have?
    [ tab bar ]
    [ search box ]
    [ top bar ]
    [ list of items ]
32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. open “Match report”
    4. tap the Quiz tab
    5. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
33. 33.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Edit photo”
    3. tap the Search tab
    Which screen are you on now? (a) Home (b) Edit photo (c) Search (d) Profile
34. 34.True or false: grey text on grey is poor button design. (a) True (b) False
35. 35.🧭 Tapping a tab usually takes you to ___. (a) the phone settings (b) that tab’s main screen (c) a random page (d) the last app used
36. 36.💾 Which works with no internet at all? (a) a cloud leaderboard (b) data saved on the phone (c) a cloud backup (d) a shared chat
37. 37.🔢 In a food-order flow, which comes LAST? (a) open the menu (b) pick a dish (c) check the cart (d) track the order
38. 38.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ search box ]
    [ Add button ]
    [ filter buttons ]
    [ menu icon ]
    [ title text ]
    [ tab bar ] (a) Add button (b) filter buttons (c) search box (d) tab bar
39. 39.💾 What number does this code show?
    let coins = 6;
    coins = coins - 3;
    coins = coins + 5;
    show(coins);
40. 40.Which of these is true of a final design? (a) shows the real fonts (b) is a quick sketch (c) has no real colours (d) uses plain grey boxes

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