App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 336 · 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) colour as the only clue (b) sudden loud sounds (c) text that can grow (d) tiny tap areas
2. 2.🔍 Which is the odd one out? (a) how easy sign-up is (b) the font size (c) the theme colours (d) the button colours
3. 3.💾 What number does this code show?
   let friends = ["Aman", "Zoya", "Arjun"];
   friends.push("Meera");
   show(friends.length);
4. 4.Which of these makes the app harder to use? (a) icons with no labels (b) big touch targets (c) text that can grow (d) captions on videos
5. 5.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) text that can grow (d) sudden loud sounds
6. 6.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) strong colour contrast (d) sudden loud sounds
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 11 px
   Menu: 18 px
   Body text: 22 px (a) Menu (b) Body text (c) Footer
8. 8.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Video”
   2. tap the Chat tab
   3. open “Help page”
   4. tap Back
   How many times must you tap Back to reach the main screen of this tab?
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 19 px
   Label: 26 px
   Menu: 9 px (a) Body text (b) Label (c) Menu
10. 10.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ top bar ]
    [ Save button ]
    [ Add button ]
11. 11.Which colour pair is easy to read? (a) white on dark green (b) yellow on white (c) pale pink on white (d) light grey on white
12. 12.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Confirm → Search → Item → Cart → Menu
    Design B: Home → Item → Shop → Cart (a) Design B (b) Design A
13. 13.🧭 Which part of navigation hides extra links? (a) the back button (b) a tab bar (c) a menu button
14. 14.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 48 px tall
    Next button: 56 px tall
    Help button: 44 px tall
    Cancel button: 52 px tall (a) Save (b) Next (c) Help (d) Cancel
15. 15.Which of these is true of the back button? (a) shows 3 to 5 icons (b) sits at the bottom (c) goes to the last screen (d) opens a list of pages
16. 16.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 36 px tall. How many px taller must it be?
17. 17.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
18. 18.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
19. 19.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) captions on videos (d) text that can grow
20. 20.Which of these is true of a wireframe? (a) shows the real fonts (b) has the real colours (c) uses plain grey boxes (d) uses the final pictures
21. 21.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 60 px tall
    Save button: 32 px tall
    Done button: 68 px tall (a) Done (b) Send (c) Save
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Body text: 15 px
    Title: 19 px
    Hint: 23 px
23. 23.🔢 In a food-order flow, which comes FIRST? (a) track the order (b) open the menu (c) pay for the order (d) pick a dish
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Hint: 19 px
    Footer: 10 px (a) Hint (b) Menu (c) Footer
25. 25.🔘 Our rule: buttons are at least 48 px tall. The Save button is 32 px tall. How many px taller must it be?
26. 26.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 68 px tall
    Send button: 40 px tall
    Save button: 72 px tall (a) Send (b) Save (c) Start
27. 27.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ Save button ]
    [ tab bar ]
    [ Add button ]
    [ top bar ]
    [ big picture ] (a) Save button (b) tab bar (c) big picture (d) Add button
28. 28.✏️ Why draw a wireframe before coding? (a) it runs the app (b) it adds colours (c) it saves data (d) changes are quick
29. 29.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ big picture ]
    [ search box ]
    [ list of items ]
    [ menu icon ]
    [ top bar ]
    [ filter buttons ] (a) filter buttons (b) list of items (c) big picture (d) menu icon
30. 30.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
31. 31.Which of these is true of a wireframe? (a) shows the real fonts (b) has the real colours (c) is a quick sketch (d) looks like the real app
32. 32.💾 What number does this code show?
    let coins = 4;
    coins = coins - 4;
    coins = coins + 4;
    show(coins);
33. 33.💾 What number does this code show?
    let friends = ["Zoya", "Aman", "Riya", "Kabir"];
    friends.push("Meera");
    show(friends.length);
34. 34.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Feed tab
    3. open “Friend list”
    4. open “Help page”
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Title: 23 px
    Menu: 22 px (a) Menu (b) Title (c) Footer
36. 36.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ top bar ]
    [ title text ]
    [ tab bar ]
    [ big picture ]
    [ menu icon ] (a) title text (b) top bar (c) menu icon (d) tab bar
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Footer: 16 px
    Label: 10 px
    Hint: 12 px
38. 38.Which of these is about UX (the experience)? (a) the button colours (b) the font size (c) the icon shapes (d) whether users get lost
39. 39.Which colour pair is hard to read? (a) dark blue on black (b) black on yellow (c) black on pale grey (d) white on black
40. 40.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ big picture ]
    [ list of items ]
    [ top bar ]
    [ tab bar ]
    [ filter buttons ]
    [ search box ] (a) list of items (b) tab bar (c) big picture (d) filter buttons

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