App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 902 · 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 colour pair is easy to read? (a) light grey on white (b) white on dark green (c) yellow on white (d) pale pink on white
2. 2.💾 pop() takes off the last item. What does this code show?
   let friends = ["Kabir", "Aman", "Meera", "Riya"];
   friends.pop();
   show(friends[friends.length - 1]); (a) Kabir (b) Riya (c) Meera (d) Aman
3. 3.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) open the camera screen (c) add a filter (d) write a caption
4. 4.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Item → Address → Size → Cart → Menu → Search
   Design B: Home → Size → Search → Item
5. 5.🔢 In a food-order flow, what comes right after “open the menu”? (a) track the order (b) pay for the order (c) add it to the cart (d) pick a dish
6. 6.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
7. 7.True or false: how users feel after is about UI (the look). (a) True (b) False
8. 8.Which of these fits saving on the phone? (a) your last game level (b) photos on two devices (c) chat messages to friends (d) a shared to-do list
9. 9.🎨 A beautiful app that confuses everyone has ___. (a) good UI but poor UX (b) perfect UX (c) no UI at all (d) good UX but poor UI
10. 10.🖼️ In this wireframe (top to bottom), what is right below the Add button?
    [ menu icon ]
    [ Add button ]
    [ search box ]
    [ list of items ]
    [ title text ]
    [ top bar ] (a) search box (b) top bar (c) title text (d) list of items
11. 11.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 52 px tall
    Back button: 68 px tall
    Start button: 60 px tall
    Done button: 32 px tall (a) Back (b) Start (c) Save (d) Done
12. 12.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Caption: 10 px
    Menu: 16 px
    Title: 19 px
14. 14.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
15. 15.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
16. 16.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 40 px tall. How many px taller must it be?
17. 17.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) in the cloud (b) on the phone
18. 18.True or false: a big, easy tap area is poor button design. (a) False (b) True
19. 19.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
20. 20.Which of these is true of a wireframe? (a) uses the final pictures (b) has no real colours (c) shows the real fonts (d) has the real colours
21. 21.🔢 In a quiz-app flow, which comes FIRST? (a) tap “Start quiz” (b) see the final score (c) see if it is right (d) read a question
22. 22.Which of these is about UI (the look)? (a) how fast a task is done (b) the theme colours (c) whether users get lost (d) how easy sign-up is
23. 23.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
24. 24.True or false: a final design has the real colours. (a) False (b) True
25. 25.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Shop → Cart → Address → Results → Menu → Offers
    Design B: Home → Pay → Pens
26. 26.Which of these fits saving in the cloud? (a) a draft you are typing (b) the sound on/off setting (c) notes to read offline (d) a class leaderboard
27. 27.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
28. 28.🖼️ How many parts (boxes) does this wireframe have?
    [ Add button ]
    [ search box ]
    [ filter buttons ]
    [ menu icon ]
    [ Save button ]
    [ big picture ]
29. 29.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 44 px tall. How many px taller must it be?
30. 30.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
31. 31.🎨 Who should you test the UX with? (a) only yourself (b) the app icon (c) real users (d) nobody
32. 32.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Size → Pay → Results → Search → Offers
    Design B: Home → Cart → Pens → Pay (a) Design B (b) Design A
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Hint: 14 px
    Caption: 23 px
    Title: 14 px
    Menu: 11 px
34. 34.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read
35. 35.Which colour pair is hard to read? (a) dark blue on black (b) black on yellow (c) white on black (d) black on pale grey
36. 36.💾 What does this code show? (Positions start at 0.)
    let songs = ["Monsoon", "Stars", "Sunrise", "Ocean", "Kites"];
    show(songs[2]); (a) Stars (b) Monsoon (c) Ocean (d) Sunrise
37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Friend list”
    3. tap Back
    4. tap the Feed tab
    Which screen are you on now? (a) Feed (b) Match report (c) Chat (d) Friend list
38. 38.🎨 Is this about UI or UX: the theme colours? (a) UI (b) UX
39. 39.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 48 px tall
    Back button: 56 px tall
    Cancel button: 44 px tall (a) Back (b) Send (c) Cancel
40. 40.🖼️ In this wireframe (top to bottom), what is right above the Add button?
    [ tab bar ]
    [ filter buttons ]
    [ Save button ]
    [ Add button ] (a) filter buttons (b) Save button (c) tab bar

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