App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 243 · 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.True or false: notes to read offline fits saving on the phone. (a) False (b) True
2. 2.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Confirm → Pay → Search
   Design B: Home → Offers → Results
3. 3.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) nowhere (c) at the bottom (d) in the middle
4. 4.🎨 Is this about UI or UX: the screen layout? (a) UI (b) UX
5. 5.True or false: your last game level fits saving on the phone. (a) False (b) True
6. 6.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Score card”
   2. open “Badges”
   3. tap the Chat tab
   4. open “Match report”
   5. tap Back
   How many times must you tap Back to reach the main screen of this tab?
7. 7.🎨 A beautiful app that confuses everyone has ___. (a) no UI at all (b) perfect UX (c) good UX but poor UI (d) good UI but poor UX
8. 8.Which of these is true of a tab bar? (a) sits at the bottom (b) hides extra links (c) goes to the last screen (d) opens a list of pages
9. 9.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
10. 10.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
11. 11.Which of these helps everyone use the app? (a) fast-flashing lights (b) labels on every icon (c) icons with no labels (d) sudden loud sounds
12. 12.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “type name and email”? (a) type name and email (b) tap “Sign up”
13. 13.Which of these is true of a wireframe? (a) uses the final pictures (b) has the real colours (c) has no real colours (d) looks like the real app
14. 14.💾 pop() takes off the last item. What does this code show?
    let friends = ["Aman", "Riya", "Kabir"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Kabir (b) Riya (c) Aman
15. 15.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ tab bar ]
    [ filter buttons ]
    [ list of items ]
    [ big picture ]
    [ top bar ] (a) tab bar (b) filter buttons (c) big picture (d) top bar
16. 16.💾 Which works with no internet at all? (a) data saved on the phone (b) a cloud leaderboard (c) a shared chat (d) a cloud backup
17. 17.True or false: chat messages to friends fits saving on the phone. (a) False (b) True
18. 18.🖼️ In this wireframe (top to bottom), what is right below the Add button?
    [ Save button ]
    [ Add button ]
    [ search box ]
    [ menu icon ] (a) search box (b) Save button (c) menu icon
19. 19.🔢 In a food-order flow, which comes first: “pay for the order” or “check the cart”? (a) pay for the order (b) check the cart
20. 20.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe
21. 21.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) strong colour contrast (d) fast-flashing lights
22. 22.🔢 In a photo-post flow, which comes first: “take the photo” or “add a filter”? (a) take the photo (b) add a filter
23. 23.True or false: space between buttons is good button design. (a) False (b) True
24. 24.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
25. 25.🔀 Why plan the user flow before building? (a) to add more taps (b) to skip testing (c) to hide the buttons (d) so each step is clear
26. 26.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
27. 27.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 12 px
    Title: 27 px
    Menu: 17 px (a) Menu (b) Title (c) Hint
29. 29.True or false: grey text on grey is good button design. (a) True (b) False
30. 30.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 56 px tall
    Help button: 40 px tall
    Cancel button: 48 px tall
    Back button: 40 px tall
31. 31.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
32. 32.✏️ What is a wireframe? (a) a type of password (b) a simple screen sketch (c) a charging cable (d) the finished app
33. 33.💾 pop() takes off the last item. What does this code show?
    let notes = ["Hindi", "Maths", "Sports"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Sports (c) Hindi
34. 34.🔍 Which is the odd one out? (a) the font size (b) the icon shapes (c) the screen layout (d) how users feel after
35. 35.🔍 Which is the odd one out? (a) whether users get lost (b) the icon shapes (c) the screen layout (d) the button colours
36. 36.🔢 In a sign-up flow, which comes first: “see the home screen” or “type name and email”? (a) type name and email (b) see the home screen
37. 37.True or false: how easy sign-up is is about UI (the look). (a) True (b) False
38. 38.💾 Saving data in the cloud lets you ___. (a) never need a password (b) skip the internet (c) shrink the app (d) use it on any device
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Label: 19 px
    Title: 12 px
40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. open “Video”
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?

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