App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 210 · 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.♿ What does a screen reader do? (a) takes photos (b) reads the screen aloud (c) plays music (d) makes text tiny
2. 2.Which of these is about UI (the look)? (a) the font size (b) how fast a task is done (c) whether users get lost (d) how many taps it takes
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 16 px
   Caption: 17 px
   Title: 25 px
   Body text: 10 px
   Hint: 23 px (a) Caption (b) Menu (c) Body text (d) Title
4. 4.💾 What is a variable? (a) a type of screen (b) a picture (c) a phone setting (d) a named box for a value
5. 5.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
6. 6.🔢 In a photo-post flow, what comes right after “write a caption”? (a) take the photo (b) add a filter (c) post the photo (d) open the camera screen
7. 7.🔢 In a quiz-app flow, which comes first: “pick an answer” or “read a question”? (a) pick an answer (b) read a question
8. 8.🔢 In a food-order flow, which comes first: “check the cart” or “add it to the cart”? (a) add it to the cart (b) check the cart
9. 9.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Results → Menu
   Design B: Home → Menu → Shop → Offers (a) Design A (b) Design B
10. 10.💾 pop() takes off the last item. What does this code show?
    let notes = ["Maths", "Art", "Sports", "Hindi", "Science"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Art (b) Hindi (c) Sports (d) Maths
11. 11.💾 In most code, the first item of a list is at position ___. (a) 10 (b) 2 (c) 0 (d) 1
12. 12.🎨 A beautiful app that confuses everyone has ___. (a) good UX but poor UI (b) no UI at all (c) perfect UX (d) good UI but poor UX
13. 13.True or false: a class leaderboard fits saving in the cloud. (a) False (b) True
14. 14.Which of these is true of a wireframe? (a) uses the final pictures (b) uses plain grey boxes (c) shows the real fonts (d) has the real colours
15. 15.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) fast-flashing lights
16. 16.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap Back
    3. open “Friend list”
    4. tap the Lessons tab
    5. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
17. 17.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
18. 18.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
19. 19.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ search box ]
    [ list of items ]
    [ Save button ]
    [ big picture ] (a) list of items (b) big picture (c) search box
20. 20.Which of these is true of a final design? (a) has no real colours (b) is a quick sketch (c) uses plain grey boxes (d) uses the final pictures
21. 21.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Search → Cart → Address
    Design B: Home → Pay → Address
22. 22.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Menu
    Design B: Home → Offers → Search → Address → Menu (a) Design B (b) Design A
23. 23.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
24. 24.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
25. 25.🔀 Why plan the user flow before building? (a) so each step is clear (b) to add more taps (c) to skip testing (d) to hide the buttons
26. 26.🔀 What is a user flow? (a) a type of font (b) a charging cable (c) a colour theme (d) the path through screens
27. 27.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ top bar ]
    [ menu icon ]
    [ tab bar ]
    [ title text ]
    [ search box ]
    [ list of items ] (a) tab bar (b) search box (c) list of items (d) menu icon
28. 28.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 32 px tall
    Cancel button: 72 px tall
    Send button: 56 px tall
    Help button: 68 px tall (a) Help (b) Cancel (c) Start (d) Send
29. 29.Which of these is true of a menu button? (a) undoes one move (b) shows 3 to 5 icons (c) sits at the bottom (d) opens a list of pages
30. 30.🖼️ How many parts (boxes) does this wireframe have?
    [ Add button ]
    [ tab bar ]
    [ list of items ]
    [ Save button ]
    [ big picture ]
31. 31.🔀 A screen with no way forward or back is called a ___. (a) dead end (b) tab bar (c) shortcut (d) home screen
32. 32.Which of these is about UX (the experience)? (a) the button colours (b) the theme colours (c) how many taps it takes (d) the icon shapes
33. 33.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 60 px tall
    Done button: 40 px tall
    Back button: 40 px tall
34. 34.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Friend list”
    3. tap Back
    Which screen are you on now? (a) Feed (b) Chat (c) Settings (d) Friend list
35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Badges”
    3. open “Map”
    Which screen are you on now? (a) Home (b) Map (c) Search (d) Badges
36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Video”
    Which screen are you on now? (a) Match report (b) Video (c) Home (d) Search
37. 37.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) in the cloud (b) on the phone
38. 38.True or false: notes to read offline fits saving on the phone. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) the theme colours (b) how easy sign-up is (c) the font size (d) the icon shapes
40. 40.True or false: the theme colours is about UI (the look). (a) False (b) True

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