App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 923 · 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.🧭 Why should every screen show where you are? (a) to look busy (b) to use more battery (c) so users do not get lost (d) to hide the menu
2. 2.🔀 Why plan the user flow before building? (a) to hide the buttons (b) to add more taps (c) so each step is clear (d) to skip testing
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 24 px
   Footer: 19 px
   Menu: 24 px
   Title: 17 px
   Label: 24 px
4. 4.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
5. 5.💾 Saving data in the cloud lets you ___. (a) shrink the app (b) skip the internet (c) use it on any device (d) never need a password
6. 6.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ Save button ]
   [ menu icon ]
   [ search box ]
   [ tab bar ]
   [ list of items ] (a) tab bar (b) search box (c) menu icon (d) list of items
7. 7.🔢 In a photo-post flow, which comes first: “open the camera screen” or “post the photo”? (a) post the photo (b) open the camera screen
8. 8.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
9. 9.🔍 Which is the odd one out? (a) how users feel after (b) the button colours (c) the font size (d) the theme colours
10. 10.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
11. 11.🌗 Is light grey on white easy or hard to read on a button? (a) easy to read (b) hard to read
12. 12.True or false: a wireframe uses plain grey boxes. (a) False (b) True
13. 13.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
14. 14.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
15. 15.💾 What does this code show? (Positions start at 0.)
    let songs = ["Stars", "Sunrise", "Rain"];
    show(songs[2]); (a) Rain (b) Sunrise (c) Stars
16. 16.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
17. 17.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
18. 18.🔢 In a sign-up flow, which comes first: “make a password” or “type name and email”? (a) type name and email (b) make a password
19. 19.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
20. 20.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 64 px tall
    Help button: 68 px tall
    Send button: 44 px tall
    Done button: 48 px tall (a) Cancel (b) Send (c) Done (d) Help
21. 21.💾 What is a variable? (a) a picture (b) a type of screen (c) a named box for a value (d) a phone setting
22. 22.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) how easy sign-up is (b) whether users get lost (c) the button colours (d) how users feel after
24. 24.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) sudden loud sounds (d) fast-flashing lights
25. 25.🔢 In a photo-post flow, which comes LAST? (a) take the photo (b) add a filter (c) post the photo (d) open the camera screen
26. 26.🎨 Is this about UI or UX: whether users get lost? (a) UI (b) UX
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Help page”
    4. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
28. 28.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 56 px tall
    Help button: 64 px tall
    Done button: 60 px tall
29. 29.🔢 In a food-order flow, which comes FIRST? (a) open the menu (b) pick a dish (c) check the cart (d) track the order
30. 30.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
31. 31.🔘 Our rule: buttons are at least 48 px tall. The Help button is 32 px tall. How many px taller must it be?
32. 32.True or false: strong colour contrast is good button design. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) text that can grow (d) fast-flashing lights
34. 34.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap the Chat tab
    3. open “Map”
    Which screen are you on now? (a) Feed (b) Map (c) Help page (d) Chat
35. 35.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 44 px tall
    Next button: 60 px tall
    Cancel button: 32 px tall
    Start button: 52 px tall
36. 36.💾 pop() takes off the last item. What does this code show?
    let friends = ["Meera", "Riya", "Zoya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Meera (b) Zoya (c) Riya
37. 37.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) no UI at all (c) good UI but poor UX (d) good UX but poor UI
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Match report”
    3. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
39. 39.🔍 Which is the odd one out? (a) sudden loud sounds (b) big touch targets (c) captions on videos (d) labels on every icon
40. 40.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design

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