App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 452 · 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.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Start button: 68 px tall
   Help button: 48 px tall
   Back button: 36 px tall
   Next button: 52 px tall (a) Help (b) Back (c) Start (d) Next
2. 2.Which of these helps everyone use the app? (a) fast-flashing lights (b) labels on every icon (c) sudden loud sounds (d) colour as the only clue
3. 3.🔢 In a photo-post flow, what comes right after “write a caption”? (a) add a filter (b) open the camera screen (c) post the photo (d) take the photo
4. 4.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Settings tab
   2. tap the Chat tab
   3. open “Map”
   How many times must you tap Back to reach the main screen of this tab?
5. 5.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
6. 6.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Back button: 64 px tall
   Cancel button: 40 px tall
   Save button: 36 px tall
   Send button: 60 px tall
7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Home tab
   2. open “Badges”
   3. tap Back
   4. open “Friend list”
   Which screen are you on now? (a) Search (b) Home (c) Friend list (d) Badges
8. 8.Which of these is about UI (the look)? (a) the font size (b) whether users get lost (c) how many taps it takes (d) how fast a task is done
9. 9.Which colour pair is easy to read? (a) pale pink on white (b) dark blue on black (c) light grey on white (d) white on black
10. 10.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
11. 11.💾 What number does this code show?
    let notes = ["Hindi", "Art", "Sports"];
    notes.push("Music");
    show(notes.length);
12. 12.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) strong colour contrast
14. 14.True or false: your last game level fits saving on the phone. (a) True (b) False
15. 15.True or false: icons with no meaning is good button design. (a) False (b) True
16. 16.🖼️ How many parts (boxes) does this wireframe have?
    [ tab bar ]
    [ search box ]
    [ filter buttons ]
    [ list of items ]
    [ Add button ]
17. 17.True or false: a final design has no real colours. (a) True (b) False
18. 18.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Cart → Confirm → Menu → Address
    Design B: Home → Shop → Pay → Size → Confirm → Search → Menu
19. 19.True or false: how many taps it takes is about UX (the experience). (a) True (b) False
20. 20.🖼️ How many parts (boxes) does this wireframe have?
    [ Save button ]
    [ Add button ]
    [ tab bar ]
    [ menu icon ]
    [ top bar ]
    [ filter buttons ]
21. 21.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a wireframe (b) a final design
22. 22.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
23. 23.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
24. 24.🔢 In a food-order flow, which comes first: “pay for the order” or “track the order”? (a) pay for the order (b) track the order
25. 25.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Offers → Cart → Search → Item → Shop
    Design B: Home → Item → Pay → Pens
26. 26.🔀 What is a user flow? (a) a type of font (b) a charging cable (c) the path through screens (d) a colour theme
27. 27.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Shop → Menu
    Design B: Home → Results → Confirm → Address → Pens → Search
28. 28.Which of these is about UX (the experience)? (a) the font size (b) the button colours (c) the theme colours (d) how easy sign-up is
29. 29.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Cart → Pens
    Design B: Home → Confirm → Offers (a) Design B (b) Design A
30. 30.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
31. 31.True or false: how users feel after is about UI (the look). (a) True (b) False
32. 32.🖼️ How many parts (boxes) does this wireframe have?
    [ menu icon ]
    [ Add button ]
    [ list of items ]
    [ title text ]
    [ filter buttons ]
33. 33.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
34. 34.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ search box ]
    [ tab bar ]
    [ Add button ]
    [ top bar ] (a) Add button (b) tab bar (c) top bar (d) search box
35. 35.✏️ What is a wireframe? (a) a charging cable (b) the finished app (c) a simple screen sketch (d) a type of password
36. 36.🔍 Which is the odd one out? (a) how fast a task is done (b) how many taps it takes (c) how easy sign-up is (d) the button colours
37. 37.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
38. 38.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Chat tab
    3. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
40. 40.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Shop → Menu
    Design B: Home → Results → Confirm → Menu → Pay → Cart

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