App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 299 · 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: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Done button: 40 px tall
   Start button: 60 px tall
   Help button: 40 px tall
2. 2.🔢 In a food-order flow, which comes LAST? (a) open the menu (b) pick a dish (c) add it to the cart (d) track the order
3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Match report”
   2. open “Match report”
   3. tap the Chat tab
   4. open “Match report”
   Which screen are you on now? (a) Feed (b) Settings (c) Match report (d) Chat
4. 4.🎨 Is this about UI or UX: how users feel after? (a) UX (b) UI
5. 5.True or false: your last game level fits saving on the phone. (a) False (b) True
6. 6.True or false: buttons almost touching is good button design. (a) False (b) True
7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Profile tab
   2. tap the Home tab
   3. open “Help page”
   4. tap Back
   5. open “Badges”
   How many times must you tap Back to reach the main screen of this tab?
8. 8.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) fast-flashing lights (d) big touch targets
9. 9.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
10. 10.Which of these makes the app harder to use? (a) big touch targets (b) captions on videos (c) strong colour contrast (d) colour as the only clue
11. 11.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
12. 12.🔢 In a quiz-app flow, which comes first: “see the final score” or “read a question”? (a) see the final score (b) read a question
13. 13.🎨 UI stands for user ___. (a) internet (b) idea (c) input (d) interface
14. 14.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) labels on every icon (d) sudden loud sounds
15. 15.💾 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
16. 16.🧭 Why should every screen show where you are? (a) to hide the menu (b) to use more battery (c) to look busy (d) so users do not get lost
17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap Back
    3. open “Score card”
    4. open “Video”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
18. 18.🔢 In a quiz-app flow, which comes first: “read a question” or “pick an answer”? (a) pick an answer (b) read a question
19. 19.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Confirm → Pay → Pens
    Design B: Home → Shop → Cart → Menu → Confirm → Offers
20. 20.🔘 Our rule: buttons are at least 48 px tall. The Send button is 40 px tall. How many px taller must it be?
21. 21.🔍 Which is the odd one out? (a) the theme colours (b) the font size (c) how fast a task is done (d) the icon shapes
22. 22.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) add a filter (c) post the photo (d) open the camera screen
23. 23.🔢 In a sign-up flow, which comes first: “enter the code sent” or “tap “Sign up””? (a) enter the code sent (b) tap “Sign up”
24. 24.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) labels on every icon (d) sudden loud sounds
25. 25.Which colour pair is hard to read? (a) dark blue on white (b) black on yellow (c) red on green (d) white on dark green
26. 26.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Badges”
    3. tap the Search tab
    4. tap the Profile tab
    5. open “Match report”
    Which screen are you on now? (a) Home (b) Search (c) Badges (d) Match report
28. 28.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) shortcut (c) dead end (d) tab bar
29. 29.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Map”
    4. open “Score card”
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
30. 30.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Menu → Cart
    Design B: Home → Item → Cart → Pay
31. 31.🔢 In a sign-up flow, what comes right after “type name and email”? (a) enter the code sent (b) see the home screen (c) open the app (d) make a password
32. 32.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
33. 33.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) pencil and paper (c) a phone case (d) a 3D printer
34. 34.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Item → Results → Search → Cart
    Design B: Home → Cart → Results → Size → Shop → Offers
35. 35.Which of these is about UX (the experience)? (a) the button colours (b) the font size (c) how easy sign-up is (d) the theme colours
36. 36.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Match report”
    3. tap Back
    4. tap the Feed tab
    5. open “Map”
    Which screen are you on now? (a) Match report (b) Feed (c) Chat (d) Map
37. 37.🧭 About how many tabs suit a tab bar best? (a) 3 to 5 (b) 10 to 12 (c) 20 (d) 1
38. 38.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
39. 39.💾 What number does this code show?
    let songs = ["Stars", "Rain", "Sunrise", "Monsoon"];
    songs.push("Kites");
    show(songs.length);
40. 40.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) the same screen (c) a dead end (d) a random page

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