App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 294 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 10 px
   Menu: 11 px
   Caption: 20 px
   Body text: 18 px
2. 2.🔘 Our rule: buttons are at least 48 px tall. The Done button is 40 px tall. How many px taller must it be?
3. 3.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
   [ tab bar ]
   [ menu icon ]
   [ Add button ]
   [ filter buttons ]
   [ top bar ] (a) tab bar (b) menu icon (c) top bar (d) Add button
4. 4.🖼️ In this wireframe (top to bottom), what is right below the search box?
   [ search box ]
   [ big picture ]
   [ menu icon ]
   [ Add button ]
   [ title text ]
   [ Save button ] (a) Add button (b) big picture (c) Save button (d) title text
5. 5.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Pens → Pay → Results → Menu → Item
   Design B: Home → Shop → Results → Confirm → Search (a) Design A (b) Design B
6. 6.🧭 Why should every screen show where you are? (a) to use more battery (b) to look busy (c) to hide the menu (d) so users do not get lost
7. 7.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) hides extra links (c) undoes one move (d) switches main sections
8. 8.🔘 Our rule: buttons are at least 48 px tall. The Save button is 36 px tall. How many px taller must it be?
9. 9.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) in the cloud (b) on the phone
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Hint: 14 px
    Footer: 12 px
    Menu: 10 px
11. 11.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
12. 12.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 44 px tall
    Next button: 60 px tall
    Done button: 36 px tall
    Back button: 60 px tall
13. 13.💾 Which can hold many values in order? (a) a button (b) a list (c) a single number (d) a switch
14. 14.🖼️ How many parts (boxes) does this wireframe have?
    [ tab bar ]
    [ title text ]
    [ top bar ]
    [ Save button ]
    [ list of items ]
15. 15.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
16. 16.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
17. 17.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
18. 18.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 48 px tall
    Cancel button: 36 px tall
    Next button: 32 px tall
19. 19.True or false: a clear word like Save is poor button design. (a) True (b) False
20. 20.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
    [ search box ]
    [ Save button ]
    [ tab bar ]
    [ title text ]
    [ Add button ] (a) search box (b) Add button (c) title text (d) Save button
21. 21.💾 Where should the app save your last game level: on the phone or in the cloud? (a) on the phone (b) in the cloud
22. 22.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Menu → Cart → Pay → Confirm → Offers
    Design B: Home → Shop → Search → Cart
23. 23.Which of these fits saving in the cloud? (a) notes to read offline (b) the sound on/off setting (c) photos on two devices (d) your last game level
24. 24.🔍 Which is the odd one out? (a) the theme colours (b) the font size (c) whether users get lost (d) the icon shapes
25. 25.💾 pop() takes off the last item. What does this code show?
    let songs = ["Kites", "Sunrise", "Rain", "Stars"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Rain (b) Kites (c) Sunrise (d) Stars
26. 26.🔀 What is a user flow? (a) a colour theme (b) a charging cable (c) a type of font (d) the path through screens
27. 27.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Size → Offers → Confirm → Item
    Design B: Home → Pay → Offers → Pens
28. 28.True or false: a big, easy tap area is poor button design. (a) True (b) False
29. 29.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
30. 30.Which of these is true of a final design? (a) shows where things go (b) uses plain grey boxes (c) has the real colours (d) is a quick sketch
31. 31.✏️ A box with a cross in a wireframe usually means ___. (a) a picture goes here (b) a closed app (c) an error (d) delete this
32. 32.True or false: a class leaderboard fits saving on the phone. (a) False (b) True
33. 33.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) nobody (d) only experts
34. 34.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) strong colour contrast (d) fast-flashing lights
35. 35.🖼️ In this wireframe (top to bottom), what is right below the big picture?
    [ menu icon ]
    [ tab bar ]
    [ big picture ]
    [ search box ] (a) tab bar (b) search box (c) menu icon
36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap the Lessons tab
    3. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
37. 37.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Offers → Shop
    Design B: Home → Results → Search → Size
38. 38.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Settings tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Profile tab
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?

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