App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 870 · 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.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Edit photo”
   2. open “Help page”
   3. tap the Feed tab
   Which screen are you on now? (a) Edit photo (b) Chat (c) Help page (d) Feed
3. 3.🔘 Our rule: buttons are at least 48 px tall. The Next button is 36 px tall. How many px taller must it be?
4. 4.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Help page”
   2. open “Video”
   3. tap Back
   4. open “Video”
   How many times must you tap Back to reach the main screen of this tab?
5. 5.🔘 Is this good or poor button design: a tiny 20 px button? (a) poor design (b) good design
6. 6.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Start button: 60 px tall
   Send button: 48 px tall
   Back button: 36 px tall
   Help button: 40 px tall
7. 7.🖼️ How many parts (boxes) does this wireframe have?
   [ list of items ]
   [ Add button ]
   [ title text ]
   [ top bar ]
   [ filter buttons ]
   [ search box ]
8. 8.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see if it is right (b) pick an answer (c) see the final score (d) read a question
9. 9.🖼️ How many parts (boxes) does this wireframe have?
   [ Save button ]
   [ filter buttons ]
   [ Add button ]
   [ title text ]
10. 10.True or false: a final design is a quick sketch. (a) False (b) True
11. 11.🔘 Our rule: buttons are at least 48 px tall. The Back button is 32 px tall. How many px taller must it be?
12. 12.True or false: a final design has no real colours. (a) True (b) False
13. 13.🔢 In a photo-post flow, which comes first: “post the photo” or “take the photo”? (a) post the photo (b) take the photo
14. 14.🎨 Is this about UI or UX: the theme colours? (a) UI (b) UX
15. 15.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 60 px tall
    Send button: 64 px tall
    Done button: 68 px tall
    Cancel button: 44 px tall (a) Send (b) Done (c) Cancel (d) Start
16. 16.🔢 In a food-order flow, what comes right after “open the menu”? (a) add it to the cart (b) pick a dish (c) check the cart (d) pay for the order
17. 17.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Menu
    Design B: Home → Cart → Search → Item → Results → Confirm → Pens
18. 18.🔘 Our rule: buttons are at least 48 px tall. The Done button is 32 px tall. How many px taller must it be?
19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. tap the Home tab
    4. open “Video”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
20. 20.🎨 UX stands for user ___. (a) extra (b) example (c) experience (d) express
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 24 px
    Hint: 11 px
    Footer: 24 px
    Title: 24 px
22. 22.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
23. 23.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Shop → Item
    Design B: Home → Offers → Confirm → Results → Pay
24. 24.Which colour pair is hard to read? (a) white on dark green (b) red on green (c) dark blue on white (d) black on pale grey
25. 25.Which of these is about UX (the experience)? (a) the button colours (b) the icon shapes (c) the screen layout (d) how fast a task is done
26. 26.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) labels on every icon (d) sudden loud sounds
27. 27.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
28. 28.💾 pop() takes off the last item. What does this code show?
    let songs = ["Rain", "Monsoon", "Sunrise", "Ocean"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Rain (b) Monsoon (c) Sunrise (d) Ocean
29. 29.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
30. 30.💾 pop() takes off the last item. What does this code show?
    let friends = ["Zoya", "Riya", "Kabir", "Meera"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Zoya (b) Meera (c) Riya (d) Kabir
31. 31.Which colour pair is hard to read? (a) white on black (b) white on dark green (c) dark blue on white (d) light grey on white
32. 32.True or false: the button colours is about UI (the look). (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Title: 20 px
    Caption: 12 px
34. 34.🔍 Which is the odd one out? (a) the button colours (b) how users feel after (c) how easy sign-up is (d) how many taps it takes
35. 35.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ tab bar ]
    [ list of items ]
    [ Save button ]
    [ filter buttons ]
    [ title text ]
    [ search box ] (a) list of items (b) Save button (c) tab bar (d) search box
36. 36.💾 What number does this code show?
    let score = 8;
    score = score - 1;
    score = score + 2;
    show(score);
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 25 px
    Menu: 23 px
    Label: 20 px
    Footer: 22 px
    Caption: 12 px (a) Menu (b) Hint (c) Label (d) Caption
38. 38.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
39. 39.True or false: notes to read offline fits saving in the cloud. (a) False (b) True
40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap the Profile tab
    3. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?

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