App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 286 · 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.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
2. 2.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
3. 3.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
4. 4.💾 What number does this code show?
   let lives = 8;
   lives = lives - 2;
   lives = lives + 5;
   show(lives);
5. 5.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Start button: 32 px tall
   Done button: 32 px tall
   Cancel button: 32 px tall
   Back button: 52 px tall
6. 6.🔍 Which is the odd one out? (a) the theme colours (b) the icon shapes (c) how fast a task is done (d) the screen layout
7. 7.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “pick an answer”? (a) pick an answer (b) tap “Start quiz”
8. 8.💾 What number does this code show?
   let friends = ["Kabir", "Aman", "Riya"];
   friends.push("Zoya");
   friends.push("Arjun");
   show(friends.length);
9. 9.🔢 In a photo-post flow, what comes right after “add a filter”? (a) write a caption (b) open the camera screen (c) post the photo (d) take the photo
10. 10.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Label: 17 px
    Footer: 21 px (a) Label (b) Menu (c) Footer
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 11 px
    Hint: 20 px
    Title: 23 px
    Menu: 19 px
    Label: 27 px (a) Footer (b) Menu (c) Title (d) Hint
13. 13.🔢 In a photo-post flow, which comes first: “write a caption” or “post the photo”? (a) write a caption (b) post the photo
14. 14.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
15. 15.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ filter buttons ]
    [ Save button ]
    [ search box ]
    [ list of items ]
    [ title text ]
    [ tab bar ] (a) search box (b) filter buttons (c) tab bar (d) title text
16. 16.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
17. 17.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
18. 18.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
19. 19.🔢 In a sign-up flow, which comes FIRST? (a) tap “Sign up” (b) see the home screen (c) type name and email (d) open the app
20. 20.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Results → Shop → Size
    Design B: Home → Cart → Results (a) Design A (b) Design B
21. 21.🔍 Which is the odd one out? (a) the theme colours (b) the font size (c) the icon shapes (d) whether users get lost
22. 22.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Results → Offers → Address → Cart
    Design B: Home → Size → Pay (a) Design B (b) Design A
23. 23.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ filter buttons ]
    [ menu icon ]
    [ big picture ]
    [ title text ] (a) big picture (b) menu icon (c) title text
24. 24.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
25. 25.🔢 In a sign-up flow, what comes right after “open the app”? (a) type name and email (b) tap “Sign up” (c) make a password (d) see the home screen
26. 26.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Offers → Results → Item
    Design B: Home → Shop → Menu → Search → Pens
27. 27.🎨 Who should you test the UX with? (a) nobody (b) only yourself (c) the app icon (d) real users
28. 28.🖼️ In this wireframe (top to bottom), what is right below the menu icon?
    [ Save button ]
    [ filter buttons ]
    [ list of items ]
    [ menu icon ]
    [ tab bar ] (a) Save button (b) filter buttons (c) tab bar (d) list of items
29. 29.🔢 In a sign-up flow, which comes LAST? (a) enter the code sent (b) open the app (c) see the home screen (d) make a password
30. 30.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 36 px tall
    Cancel button: 68 px tall
    Send button: 72 px tall
    Next button: 48 px tall (a) Start (b) Cancel (c) Send (d) Next
31. 31.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
32. 32.💾 What number does this code show?
    let notes = ["Music", "Science", "Art", "Maths"];
    notes.push("Sports");
    show(notes.length);
33. 33.💾 Where should the app save your last game level: on the phone or in the cloud? (a) on the phone (b) in the cloud
34. 34.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 48 px tall
    Send button: 68 px tall
    Cancel button: 24 px tall
    Save button: 56 px tall (a) Cancel (b) Send (c) Help (d) Save
35. 35.Which of these makes the app harder to use? (a) strong colour contrast (b) captions on videos (c) fast-flashing lights (d) labels on every icon
36. 36.Which colour pair is hard to read? (a) dark blue on white (b) yellow on white (c) white on dark green (d) black on pale grey
37. 37.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
38. 38.🔘 Our rule: buttons are at least 48 px tall. The Save button is 28 px tall. How many px taller must it be?
39. 39.🌗 Is black on pale grey easy or hard to read on a button? (a) easy to read (b) hard to read
40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Map”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?

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