App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 312 · 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.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) the same screen (c) a dead end (d) a clear next step
2. 2.🖼️ In this wireframe (top to bottom), what is right below the big picture?
   [ search box ]
   [ list of items ]
   [ filter buttons ]
   [ big picture ]
   [ top bar ] (a) search box (b) top bar (c) list of items (d) filter buttons
3. 3.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) text that can grow (d) labels on every icon
4. 4.🔘 Our rule: buttons are at least 48 px tall. The Save button is 28 px tall. How many px taller must it be?
5. 5.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
6. 6.Which of these fits saving on the phone? (a) a shared to-do list (b) a class leaderboard (c) notes to read offline (d) chat messages to friends
7. 7.True or false: a wireframe shows the real fonts. (a) True (b) False
8. 8.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Address → Offers
   Design B: Home → Pens → Confirm → Results → Shop → Cart → Offers
9. 9.True or false: a final design is a quick sketch. (a) False (b) True
10. 10.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 52 px tall
    Start button: 32 px tall
    Back button: 56 px tall
    Send button: 68 px tall (a) Next (b) Back (c) Send (d) Start
11. 11.💾 What number does this code show?
    let songs = ["Stars", "Sunrise"];
    songs.push("Ocean");
    show(songs.length);
12. 12.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 48 px tall
    Save button: 44 px tall
    Back button: 64 px tall
    Next button: 56 px tall (a) Send (b) Save (c) Next (d) Back
13. 13.💾 What number does this code show?
    let songs = ["Stars", "Monsoon", "Kites"];
    songs.push("Rain");
    songs.push("Ocean");
    show(songs.length);
14. 14.🌗 Is red on green easy or hard to read on a button? (a) easy to read (b) hard to read
15. 15.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
16. 16.💾 What number does this code show?
    let friends = ["Aman", "Kabir", "Riya"];
    friends.push("Meera");
    friends.push("Arjun");
    show(friends.length);
17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Lessons tab
    3. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
18. 18.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) captions on videos (d) colour as the only clue
19. 19.Which of these is about UI (the look)? (a) how easy sign-up is (b) whether users get lost (c) the icon shapes (d) how fast a task is done
20. 20.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
21. 21.💾 What number does this code show?
    let points = 5;
    points = points - 4;
    points = points + 4;
    show(points);
22. 22.🔢 In a food-order flow, which comes FIRST? (a) check the cart (b) open the menu (c) track the order (d) pay for the order
23. 23.Which of these is true of a tab bar? (a) goes to the last screen (b) hides extra links (c) sits at the bottom (d) undoes one move
24. 24.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ top bar ]
    [ big picture ]
    [ menu icon ]
    [ tab bar ]
    [ list of items ]
    [ Add button ] (a) Add button (b) menu icon (c) list of items (d) big picture
25. 25.💾 What is a variable? (a) a type of screen (b) a phone setting (c) a picture (d) a named box for a value
26. 26.Which of these fits saving in the cloud? (a) your last game level (b) notes to read offline (c) the sound on/off setting (d) a class leaderboard
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Body text: 28 px
    Title: 18 px
    Caption: 18 px
    Menu: 19 px (a) Caption (b) Hint (c) Title (d) Body text
28. 28.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
29. 29.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ title text ]
    [ top bar ]
    [ big picture ]
    [ Add button ]
    [ list of items ] (a) list of items (b) title text (c) big picture (d) Add button
30. 30.True or false: the button colours is about UX (the experience). (a) True (b) False
31. 31.Which of these is true of a wireframe? (a) has the real colours (b) looks like the real app (c) shows where things go (d) uses the final pictures
32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Edit photo”
    3. open “Friend list”
    4. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
33. 33.🔢 In a sign-up flow, which comes first: “see the home screen” or “tap “Sign up””? (a) see the home screen (b) tap “Sign up”
34. 34.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) pencil and paper (c) a phone case (d) a 3D printer
35. 35.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
36. 36.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
37. 37.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) shortcut (c) home screen (d) dead end
38. 38.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to look busy (c) to use more battery (d) to hide the menu
39. 39.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Profile tab
    3. open “Map”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap Back
    3. open “Score card”
    4. open “Video”
    Which screen are you on now? (a) Score card (b) Friend list (c) Feed (d) Video

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