App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 586 · 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 is the odd one out? (a) labels on every icon (b) strong colour contrast (c) tiny tap areas (d) text that can grow
2. 2.💾 Saving data in the cloud lets you ___. (a) use it on any device (b) never need a password (c) shrink the app (d) skip the internet
3. 3.🎨 Fewer taps to finish a task usually means ___. (a) more colours (b) worse UX (c) a bigger app (d) better UX
4. 4.Which of these is true of a final design? (a) is a quick sketch (b) uses plain grey boxes (c) uses the final pictures (d) shows where things go
5. 5.💾 pop() takes off the last item. What does this code show?
   let notes = ["Art", "Music", "Science"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Art (b) Science (c) Music
6. 6.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Match report”
   2. open “Help page”
   3. open “Video”
   Which screen are you on now? (a) Lessons (b) Match report (c) Help page (d) Video
7. 7.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) sudden loud sounds (d) captions on videos
8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Friend list”
   2. open “Map”
   3. open “Score card”
   Which screen are you on now? (a) Friend list (b) Map (c) Home (d) Score card
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 16 px
   Hint: 23 px
   Menu: 9 px
   Label: 16 px (a) Label (b) Hint (c) Menu (d) Title
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 9 px
    Hint: 21 px
    Menu: 25 px (a) Label (b) Hint (c) Menu
11. 11.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “open the app”? (a) tap “Sign up” (b) open the app
12. 12.🔢 In a photo-post flow, which comes FIRST? (a) open the camera screen (b) post the photo (c) take the photo (d) write a caption
13. 13.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
14. 14.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Home tab
    3. tap the Home tab
    4. open “Badges”
    5. tap Back
    Which screen are you on now? (a) Search (b) Help page (c) Badges (d) Home
16. 16.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 40 px tall
    Help button: 44 px tall
    Save button: 48 px tall
17. 17.Which of these is true of the back button? (a) hides extra links (b) shows 3 to 5 icons (c) goes to the last screen (d) switches main sections
18. 18.True or false: the icon shapes is about UI (the look). (a) False (b) True
19. 19.Which colour pair is easy to read? (a) dark blue on black (b) yellow on white (c) black on pale grey (d) red on green
20. 20.🔢 In a quiz-app flow, which comes first: “pick an answer” or “see the final score”? (a) pick an answer (b) see the final score
21. 21.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a wireframe (b) a final design
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Body text: 11 px
    Menu: 16 px
    Label: 24 px
    Caption: 10 px
23. 23.🔢 In a food-order flow, which comes LAST? (a) pick a dish (b) pay for the order (c) track the order (d) check the cart
24. 24.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) sudden loud sounds (d) icons with no labels
25. 25.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
26. 26.Which of these fits saving in the cloud? (a) your last game level (b) a draft you are typing (c) photos on two devices (d) the sound on/off setting
27. 27.🔢 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
28. 28.🔍 Which is the odd one out? (a) how users feel after (b) the theme colours (c) how easy sign-up is (d) whether users get lost
29. 29.💾 Which works with no internet at all? (a) a shared chat (b) data saved on the phone (c) a cloud backup (d) a cloud leaderboard
30. 30.🔢 In a photo-post flow, what comes right after “add a filter”? (a) open the camera screen (b) take the photo (c) write a caption (d) post the photo
31. 31.Which of these is about UI (the look)? (a) how easy sign-up is (b) how users feel after (c) whether users get lost (d) the icon shapes
32. 32.True or false: your last game level fits saving in the cloud. (a) False (b) True
33. 33.True or false: a shared to-do list fits saving in the cloud. (a) False (b) True
34. 34.🌗 Is black on yellow easy or hard to read on a button? (a) easy to read (b) hard to read
35. 35.🔘 Our rule: buttons are at least 48 px tall. The Next button is 28 px tall. How many px taller must it be?
36. 36.🔢 In a sign-up flow, which comes first: “make a password” or “enter the code sent”? (a) make a password (b) enter the code sent
37. 37.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ top bar ]
    [ search box ]
    [ big picture ]
    [ menu icon ] (a) top bar (b) big picture (c) menu icon (d) search box
38. 38.🔀 Why plan the user flow before building? (a) so each step is clear (b) to skip testing (c) to hide the buttons (d) to add more taps
39. 39.🔢 In a photo-post flow, which comes first: “take the photo” or “open the camera screen”? (a) take the photo (b) open the camera screen
40. 40.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) a random page (c) a dead end (d) the same screen

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