App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 28 · 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 this wireframe (top to bottom), what is right above the filter buttons?
   [ search box ]
   [ tab bar ]
   [ menu icon ]
   [ filter buttons ] (a) tab bar (b) menu icon (c) search box
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
3. 3.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Edit photo”
   2. open “Map”
   3. tap the Me tab
   4. tap the Quiz tab
   How many times must you tap Back to reach the main screen of this tab?
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 20 px
   Hint: 16 px
   Body text: 16 px
   Label: 14 px
5. 5.💾 pop() takes off the last item. What does this code show?
   let notes = ["Hindi", "Music", "Art", "Sports"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Music (b) Hindi (c) Sports (d) Art
6. 6.🔍 Which is the odd one out? (a) the icon shapes (b) the button colours (c) the screen layout (d) how easy sign-up is
7. 7.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Cart → Search → Menu
   Design B: Home → Cart → Shop → Results → Pens
8. 8.🔢 In a photo-post flow, which comes first: “write a caption” or “take the photo”? (a) take the photo (b) write a caption
9. 9.💾 pop() takes off the last item. What does this code show?
   let songs = ["Stars", "Kites", "Monsoon", "Ocean", "Sunrise"];
   songs.pop();
   show(songs[songs.length - 1]); (a) Monsoon (b) Stars (c) Kites (d) Ocean
10. 10.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 32 px tall
    Send button: 48 px tall
    Back button: 48 px tall (a) Send (b) Back (c) Save
11. 11.💾 What does this code show? (Positions start at 0.)
    let songs = ["Kites", "Rain", "Sunrise", "Ocean", "Stars"];
    show(songs[4]); (a) Sunrise (b) Stars (c) Rain (d) Kites
12. 12.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
    [ search box ]
    [ menu icon ]
    [ top bar ]
    [ list of items ] (a) search box (b) list of items (c) top bar
13. 13.💾 What does this code show? (Positions start at 0.)
    let friends = ["Riya", "Zoya", "Arjun", "Kabir"];
    show(friends[2]); (a) Kabir (b) Arjun (c) Riya (d) Zoya
14. 14.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Me tab
    3. open “Map”
    Which screen are you on now? (a) Lessons (b) Quiz (c) Me (d) Map
15. 15.🔢 In a food-order flow, which comes first: “add it to the cart” or “open the menu”? (a) open the menu (b) add it to the cart
16. 16.Which colour pair is easy to read? (a) white on dark green (b) light grey on white (c) yellow on white (d) red on green
17. 17.Which of these is true of a wireframe? (a) uses the final pictures (b) uses plain grey boxes (c) has the real colours (d) shows the real fonts
18. 18.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a text label (d) a bright colour
19. 19.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
20. 20.True or false: space between buttons is poor button design. (a) True (b) False
21. 21.True or false: a big, easy tap area is good button design. (a) False (b) True
22. 22.True or false: photos on two devices fits saving in the cloud. (a) True (b) False
23. 23.✏️ A box with a cross in a wireframe usually means ___. (a) delete this (b) an error (c) a picture goes here (d) a closed app
24. 24.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
25. 25.True or false: icons with no meaning is good button design. (a) True (b) False
26. 26.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
27. 27.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
28. 28.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Pay → Cart
    Design B: Home → Pay → Pens → Results
29. 29.🔢 In a quiz-app flow, which comes LAST? (a) see the final score (b) see if it is right (c) read a question (d) pick an answer
30. 30.🔢 In a quiz-app flow, which comes FIRST? (a) pick an answer (b) tap “Start quiz” (c) see the final score (d) see if it is right
31. 31.🔀 Why plan the user flow before building? (a) so each step is clear (b) to hide the buttons (c) to add more taps (d) to skip testing
32. 32.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) the last app used (c) that tab’s main screen (d) the phone settings
33. 33.🔀 A screen with no way forward or back is called a ___. (a) shortcut (b) dead end (c) home screen (d) tab bar
34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Help page”
    3. tap the Quiz tab
    4. open “Friend list”
    5. tap Back
    Which screen are you on now? (a) Friend list (b) Lessons (c) Help page (d) Quiz
35. 35.True or false: how many taps it takes is about UX (the experience). (a) False (b) True
36. 36.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) fast-flashing lights (d) captions on videos
37. 37.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ menu icon ]
    [ search box ]
    [ title text ]
    [ list of items ]
38. 38.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) sudden loud sounds (d) colour as the only clue
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Cart → Search → Offers → Menu
    Design B: Home → Item → Confirm → Offers → Search → Shop
40. 40.Which of these is about UI (the look)? (a) the button colours (b) how users feel after (c) how fast a task is done (d) how many taps it takes

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