App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 295 · 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 part of navigation sits at the bottom? (a) a menu button (b) the back button (c) a tab bar
2. 2.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Size → Cart → Menu → Pay → Search
   Design B: Home → Results → Pay → Pens → Address (a) Design B (b) Design A
3. 3.True or false: the button colours is about UI (the look). (a) True (b) False
4. 4.Which of these fits saving on the phone? (a) a shared to-do list (b) notes to read offline (c) chat messages to friends (d) a class leaderboard
5. 5.💾 What number does this code show?
   let songs = ["Sunrise", "Rain"];
   songs.push("Stars");
   songs.push("Ocean");
   show(songs.length);
6. 6.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Start button: 40 px tall
   Back button: 48 px tall
   Next button: 72 px tall (a) Start (b) Back (c) Next
7. 7.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Done button: 44 px tall
   Cancel button: 36 px tall
   Save button: 60 px tall
8. 8.🎨 Who should you test the UX with? (a) nobody (b) only yourself (c) the app icon (d) real users
9. 9.🔘 Our rule: buttons are at least 48 px tall. The Save button is 24 px tall. How many px taller must it be?
10. 10.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
11. 11.True or false: the button colours is about UX (the experience). (a) True (b) False
12. 12.Which of these is true of a tab bar? (a) sits at the bottom (b) goes to the last screen (c) undoes one move (d) opens a list of pages
13. 13.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) big touch targets (d) colour as the only clue
14. 14.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
15. 15.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
16. 16.🔢 In a food-order flow, which comes FIRST? (a) open the menu (b) pick a dish (c) pay for the order (d) track the order
17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Score card”
    3. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
18. 18.🔢 In a food-order flow, which comes first: “open the menu” or “check the cart”? (a) check the cart (b) open the menu
19. 19.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
20. 20.🔢 In a sign-up flow, which comes first: “type name and email” or “open the app”? (a) type name and email (b) open the app
21. 21.True or false: a final design shows the real fonts. (a) False (b) True
22. 22.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
23. 23.🔢 In a food-order flow, which comes first: “check the cart” or “track the order”? (a) check the cart (b) track the order
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Friend list”
    3. tap the Search tab
    4. tap the Search tab
    5. open “Match report”
    Which screen are you on now? (a) Help page (b) Friend list (c) Home (d) Match report
25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Badges”
    3. tap Back
    Which screen are you on now? (a) Me (b) Quiz (c) Lessons (d) Badges
26. 26.🖼️ How many parts (boxes) does this wireframe have?
    [ top bar ]
    [ tab bar ]
    [ search box ]
    [ list of items ]
    [ Add button ]
    [ big picture ]
27. 27.True or false: a wireframe uses the final pictures. (a) True (b) False
28. 28.💾 What number does this code show?
    let songs = ["Rain", "Kites", "Monsoon", "Ocean"];
    songs.push("Sunrise");
    songs.push("Stars");
    show(songs.length);
29. 29.True or false: a wireframe has no real colours. (a) True (b) False
30. 30.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ tab bar ]
    [ title text ]
    [ search box ]
    [ Add button ]
    [ menu icon ]
    [ filter buttons ] (a) tab bar (b) filter buttons (c) menu icon (d) search box
31. 31.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Offers → Size → Search
    Design B: Home → Results → Address → Confirm → Pens → Pay
32. 32.Which colour pair is easy to read? (a) white on dark green (b) light grey on white (c) pale pink on white (d) red on green
33. 33.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
34. 34.🧭 Which part of navigation goes to the last screen? (a) the back button (b) a menu button (c) a tab bar
35. 35.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
36. 36.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) in the cloud (b) on the phone
37. 37.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
38. 38.🔢 In a photo-post flow, what comes right after “write a caption”? (a) post the photo (b) take the photo (c) add a filter (d) open the camera screen
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Pens → Shop → Address → Menu → Results → Pay
    Design B: Home → Confirm → Address
40. 40.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone

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