App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 105 · 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.Which colour pair is easy to read? (a) white on dark green (b) yellow on white (c) light grey on white (d) dark blue on black
2. 2.🔢 In a photo-post flow, which comes first: “write a caption” or “open the camera screen”? (a) open the camera screen (b) write a caption
3. 3.True or false: a final design shows where things go. (a) True (b) False
4. 4.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
5. 5.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) take the photo (b) write a caption (c) post the photo (d) add a filter
6. 6.🔘 Our rule: buttons are at least 48 px tall. The Save button is 44 px tall. How many px taller must it be?
7. 7.Which of these makes the app harder to use? (a) fast-flashing lights (b) text that can grow (c) labels on every icon (d) captions on videos
8. 8.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Friend list”
   2. open “Badges”
   3. open “Map”
   4. open “Video”
   5. open “Friend list”
   How many times must you tap Back to reach the main screen of this tab?
9. 9.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Cart → Address
   Design B: Home → Search → Offers → Shop → Item → Address
10. 10.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Search → Results → Confirm → Offers → Shop → Cart
    Design B: Home → Cart → Offers → Menu
11. 11.💾 What number does this code show?
    let songs = ["Ocean", "Monsoon"];
    songs.push("Stars");
    show(songs.length);
12. 12.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
13. 13.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a dead end (c) a random page (d) a clear next step
14. 14.True or false: a wireframe has no real colours. (a) False (b) True
15. 15.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ search box ]
    [ title text ]
    [ big picture ]
    [ menu icon ]
    [ top bar ]
    [ Save button ] (a) title text (b) Save button (c) search box (d) menu icon
16. 16.Which colour pair is easy to read? (a) red on green (b) pale pink on white (c) dark blue on white (d) light grey on white
17. 17.🔢 In a food-order flow, which comes FIRST? (a) track the order (b) check the cart (c) pick a dish (d) open the menu
18. 18.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Settings tab
    3. open “Match report”
    4. open “Match report”
    Which screen are you on now? (a) Match report (b) Feed (c) Chat (d) Settings
19. 19.Which colour pair is hard to read? (a) red on green (b) white on black (c) black on pale grey (d) white on dark green
20. 20.Which of these is true of the back button? (a) undoes one move (b) switches main sections (c) opens a list of pages (d) sits at the bottom
21. 21.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 52 px tall
    Start button: 72 px tall
    Cancel button: 64 px tall
    Back button: 44 px tall (a) Back (b) Start (c) Save (d) Cancel
22. 22.🔍 Which is the odd one out? (a) the button colours (b) the theme colours (c) the icon shapes (d) whether users get lost
23. 23.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
24. 24.🧭 Which part of navigation goes to the last screen? (a) a tab bar (b) a menu button (c) the back button
25. 25.🔍 Which is the odd one out? (a) the button colours (b) how easy sign-up is (c) how users feel after (d) whether users get lost
26. 26.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 28 px tall
    Cancel button: 68 px tall
    Next button: 52 px tall (a) Cancel (b) Next (c) Help
27. 27.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
28. 28.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 60 px tall
    Save button: 36 px tall
    Cancel button: 52 px tall
    Back button: 36 px tall
29. 29.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Pens → Pay → Shop
    Design B: Home → Address → Menu (a) Design B (b) Design A
30. 30.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
31. 31.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Size → Menu → Cart
    Design B: Home → Cart → Confirm → Address → Search → Shop → Item (a) Design B (b) Design A
32. 32.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
33. 33.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
34. 34.🧭 About how many tabs suit a tab bar best? (a) 3 to 5 (b) 1 (c) 10 to 12 (d) 20
35. 35.🔍 Which is the odd one out? (a) the font size (b) whether users get lost (c) how fast a task is done (d) how users feel after
36. 36.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
37. 37.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ menu icon ]
    [ search box ]
    [ Add button ]
    [ list of items ] (a) Add button (b) list of items (c) menu icon
38. 38.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Edit photo”
    3. tap the Quiz tab
    4. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
39. 39.🌗 Is white on black easy or hard to read on a button? (a) easy to read (b) hard to read
40. 40.True or false: a clear word like Save is good button design. (a) False (b) True

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students