App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 261 · 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 is the odd one out? (a) whether users get lost (b) how easy sign-up is (c) how many taps it takes (d) the button colours
2. 2.🔍 Which is the odd one out? (a) the font size (b) how users feel after (c) how many taps it takes (d) whether users get lost
3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Edit photo”
   2. open “Badges”
   3. tap the Search tab
   How many times must you tap Back to reach the main screen of this tab?
4. 4.🔢 In a food-order flow, what comes right after “pay for the order”? (a) check the cart (b) pick a dish (c) add it to the cart (d) track the order
5. 5.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) hides extra links
6. 6.Which of these is about UX (the experience)? (a) the theme colours (b) whether users get lost (c) the icon shapes (d) the button colours
7. 7.💾 What number does this code show?
   let lives = 3;
   lives = lives - 1;
   lives = lives + 1;
   show(lives);
8. 8.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ filter buttons ]
   [ search box ]
   [ menu icon ]
   [ big picture ]
   [ list of items ] (a) list of items (b) menu icon (c) search box (d) big picture
9. 9.🔀 What is a user flow? (a) a colour theme (b) the path through screens (c) a type of font (d) a charging cable
10. 10.💾 Saving data in the cloud lets you ___. (a) shrink the app (b) skip the internet (c) never need a password (d) use it on any device
11. 11.🔢 In a sign-up flow, which comes FIRST? (a) open the app (b) tap “Sign up” (c) type name and email (d) enter the code sent
12. 12.🌗 Is light grey on white easy or hard to read on a button? (a) easy to read (b) hard to read
13. 13.💾 What number does this code show?
    let stars = 9;
    stars = stars - 6;
    stars = stars + 4;
    show(stars);
14. 14.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
15. 15.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Lessons tab
    3. open “Help page”
    4. tap the Lessons tab
    5. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
16. 16.🖼️ In this wireframe (top to bottom), what is right above the Save button?
    [ filter buttons ]
    [ search box ]
    [ list of items ]
    [ Save button ] (a) list of items (b) filter buttons (c) search box
17. 17.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
18. 18.💾 What number does this code show?
    let notes = ["Music", "Maths", "Hindi"];
    notes.push("Sports");
    notes.push("Science");
    show(notes.length);
19. 19.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) big touch targets (d) fast-flashing lights
20. 20.🎨 Fewer taps to finish a task usually means ___. (a) more colours (b) better UX (c) worse UX (d) a bigger app
21. 21.Which colour pair is hard to read? (a) black on yellow (b) dark blue on white (c) dark blue on black (d) black on pale grey
22. 22.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 48 px tall
    Start button: 60 px tall
    Save button: 36 px tall
    Send button: 32 px tall
23. 23.🧭 Tapping a tab usually takes you to ___. (a) the last app used (b) that tab’s main screen (c) the phone settings (d) a random page
24. 24.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
25. 25.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Feed tab
    3. open “Match report”
    4. tap the Settings tab
    5. tap the Settings tab
    Which screen are you on now? (a) Video (b) Settings (c) Match report (d) Feed
26. 26.True or false: a final design has no real colours. (a) False (b) True
27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. open “Map”
    3. tap Back
    Which screen are you on now? (a) Feed (b) Chat (c) Map (d) Score card
28. 28.Which of these fits saving in the cloud? (a) your last game level (b) a draft you are typing (c) a class leaderboard (d) notes to read offline
29. 29.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
30. 30.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a dead end (c) a random page (d) a clear next step
31. 31.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 52 px tall
    Save button: 52 px tall
    Done button: 24 px tall
    Back button: 52 px tall (a) Next (b) Save (c) Back (d) Done
32. 32.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
33. 33.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ tab bar ]
    [ Save button ]
    [ filter buttons ]
    [ top bar ] (a) list of items (b) tab bar (c) top bar (d) filter buttons
34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Video”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
35. 35.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
36. 36.Which of these is about UX (the experience)? (a) how users feel after (b) the button colours (c) the screen layout (d) the theme colours
37. 37.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
39. 39.True or false: a final design uses plain grey boxes. (a) False (b) True
40. 40.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 36 px tall
    Cancel button: 48 px tall
    Help button: 40 px tall

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