App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 152 · 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.🖼️ In this wireframe (top to bottom), what is right above the Save button?
   [ title text ]
   [ tab bar ]
   [ Add button ]
   [ Save button ]
   [ menu icon ]
   [ filter buttons ] (a) menu icon (b) filter buttons (c) Add button (d) title text
2. 2.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) on the phone (b) in the cloud
3. 3.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
4. 4.🔢 In a photo-post flow, which comes LAST? (a) post the photo (b) take the photo (c) open the camera screen (d) add a filter
5. 5.Which of these is true of a wireframe? (a) has the real colours (b) uses the final pictures (c) uses plain grey boxes (d) looks like the real app
6. 6.🖼️ In this wireframe (top to bottom), what is right below the tab bar?
   [ filter buttons ]
   [ Add button ]
   [ big picture ]
   [ tab bar ]
   [ search box ] (a) big picture (b) filter buttons (c) Add button (d) search box
7. 7.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
8. 8.🎨 A beautiful app that confuses everyone has ___. (a) good UI but poor UX (b) perfect UX (c) good UX but poor UI (d) no UI at all
9. 9.🖼️ How many parts (boxes) does this wireframe have?
   [ Add button ]
   [ title text ]
   [ menu icon ]
   [ list of items ]
10. 10.🔍 Which is the odd one out? (a) whether users get lost (b) the screen layout (c) how easy sign-up is (d) how fast a task is done
11. 11.🎨 UX stands for user ___. (a) extra (b) example (c) experience (d) express
12. 12.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
13. 13.🎨 Who should you test the UX with? (a) only yourself (b) real users (c) nobody (d) the app icon
14. 14.🔀 A screen with no way forward or back is called a ___. (a) dead end (b) shortcut (c) tab bar (d) home screen
15. 15.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) sudden loud sounds (d) tiny tap areas
16. 16.Which colour pair is easy to read? (a) red on green (b) white on dark green (c) yellow on white (d) light grey on white
17. 17.🖼️ How many parts (boxes) does this wireframe have?
    [ list of items ]
    [ Add button ]
    [ tab bar ]
    [ Save button ]
18. 18.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) captions on videos (d) colour as the only clue
19. 19.True or false: a wireframe uses the final pictures. (a) False (b) True
20. 20.🔘 Our rule: buttons are at least 48 px tall. The Next button is 32 px tall. How many px taller must it be?
21. 21.True or false: the button colours is about UX (the experience). (a) True (b) False
22. 22.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 60 px tall
    Send button: 40 px tall
    Back button: 60 px tall
    Start button: 48 px tall (a) Send (b) Start (c) Save (d) Back
23. 23.True or false: notes to read offline fits saving in the cloud. (a) False (b) True
24. 24.💾 What number does this code show?
    let notes = ["Science", "Music"];
    notes.push("Art");
    show(notes.length);
25. 25.💾 What does this code show? (Positions start at 0.)
    let notes = ["Hindi", "Maths", "Art", "Sports"];
    show(notes[1]); (a) Sports (b) Hindi (c) Maths (d) Art
26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Match report”
    3. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
27. 27.True or false: how fast a task is done is about UI (the look). (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) text that can grow (d) colour as the only clue
29. 29.💾 What number does this code show?
    let notes = ["Science", "Hindi", "Sports", "Art"];
    notes.push("Maths");
    notes.push("Music");
    show(notes.length);
30. 30.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
31. 31.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
32. 32.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Address → Pay → Shop
    Design B: Home → Results → Pay → Cart → Item
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Hint: 23 px
    Menu: 19 px
34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Profile tab
    3. open “Help page”
    4. tap the Home tab
    Which screen are you on now? (a) Help page (b) Search (c) Match report (d) Home
35. 35.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 52 px tall
    Save button: 32 px tall
    Cancel button: 68 px tall (a) Cancel (b) Save (c) Done
36. 36.Which of these is about UI (the look)? (a) how many taps it takes (b) the font size (c) how users feel after (d) whether users get lost
37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap the Lessons tab
    3. tap the Quiz tab
    4. tap the Lessons tab
    5. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
38. 38.🔢 In a food-order flow, which comes LAST? (a) add it to the cart (b) open the menu (c) pick a dish (d) track the order
39. 39.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights
40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Badges”
    3. tap Back
    4. open “Friend list”
    5. tap Back
    Which screen are you on now? (a) Badges (b) Feed (c) Friend list (d) Edit photo

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