App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 397 · 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.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Friend list”
   2. open “Video”
   3. tap the Quiz tab
   4. tap the Quiz tab
   5. open “Help page”
   Which screen are you on now? (a) Video (b) Friend list (c) Help page (d) Lessons
2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Map”
   2. tap Back
   3. open “Map”
   Which screen are you on now? (a) Feed (b) Chat (c) Settings (d) Map
3. 3.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Results → Confirm → Search → Address → Pay → Cart
   Design B: Home → Pens → Pay
4. 4.🎨 UI stands for user ___. (a) idea (b) internet (c) input (d) interface
5. 5.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
6. 6.🌗 Is red on green easy or hard to read on a button? (a) hard to read (b) easy to read
7. 7.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
8. 8.🔢 In a quiz-app flow, which comes first: “see if it is right” or “pick an answer”? (a) see if it is right (b) pick an answer
9. 9.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Shop → Menu → Results → Confirm → Search
   Design B: Home → Size → Pens → Cart → Search
10. 10.🔍 Which is the odd one out? (a) the screen layout (b) the button colours (c) the icon shapes (d) how easy sign-up is
11. 11.🔢 In a photo-post flow, what comes right after “write a caption”? (a) take the photo (b) post the photo (c) add a filter (d) open the camera screen
12. 12.True or false: chat messages to friends fits saving in the cloud. (a) False (b) True
13. 13.🔘 Our rule: buttons are at least 48 px tall. The Send button is 36 px tall. How many px taller must it be?
14. 14.🧭 Which part of navigation undoes one move? (a) a tab bar (b) the back button (c) a menu button
15. 15.Which of these is about UI (the look)? (a) how many taps it takes (b) the screen layout (c) how fast a task is done (d) how easy sign-up is
16. 16.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) in the middle (c) inside a button (d) at the bottom
17. 17.True or false: a big, easy tap area is poor button design. (a) False (b) True
18. 18.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Lessons tab
    3. open “Map”
    4. open “Video”
    5. open “Badges”
    Which screen are you on now? (a) Badges (b) Video (c) Edit photo (d) Map
19. 19.🔢 In a food-order flow, which comes LAST? (a) open the menu (b) pick a dish (c) track the order (d) check the cart
20. 20.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
21. 21.🔢 In a food-order flow, which comes first: “add it to the cart” or “pay for the order”? (a) add it to the cart (b) pay for the order
22. 22.True or false: a big, easy tap area is good button design. (a) True (b) False
23. 23.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Badges”
    3. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
24. 24.🧭 Which part of navigation switches main sections? (a) the back button (b) a tab bar (c) a menu button
25. 25.🔀 A screen with no way forward or back is called a ___. (a) shortcut (b) dead end (c) home screen (d) tab bar
26. 26.True or false: a wireframe shows where things go. (a) False (b) True
27. 27.🔀 Why plan the user flow before building? (a) so each step is clear (b) to skip testing (c) to add more taps (d) to hide the buttons
28. 28.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) strong colour contrast
29. 29.💾 What number does this code show?
    let notes = ["Hindi", "Music"];
    notes.push("Maths");
    show(notes.length);
30. 30.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
31. 31.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) is a quick sketch (d) looks like the real app
32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Map”
    3. tap Back
    4. open “Edit photo”
    5. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
33. 33.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Score card”
    3. open “Map”
    4. open “Score card”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
34. 34.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 44 px tall
    Save button: 48 px tall
    Cancel button: 60 px tall (a) Cancel (b) Done (c) Save
35. 35.✏️ What is the easiest way to draw a first wireframe? (a) a phone case (b) a microphone (c) pencil and paper (d) a 3D printer
36. 36.Which of these is true of a final design? (a) uses plain grey boxes (b) shows where things go (c) has the real colours (d) has no real colours
37. 37.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ title text ]
    [ big picture ]
    [ filter buttons ]
    [ top bar ]
    [ Add button ] (a) Add button (b) big picture (c) top bar (d) title text
38. 38.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) big touch targets (d) fast-flashing lights
39. 39.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
40. 40.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Confirm → Cart
    Design B: Home → Shop → Offers → Pens → Cart → Search

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