App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 969 · 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 of these is true of a wireframe? (a) uses the final pictures (b) has the real colours (c) looks like the real app (d) is a quick sketch
2. 2.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Help button: 52 px tall
   Save button: 44 px tall
   Cancel button: 56 px tall (a) Save (b) Cancel (c) Help
3. 3.🔀 What is a user flow? (a) a colour theme (b) a type of font (c) a charging cable (d) the path through screens
4. 4.True or false: notes to read offline fits saving on the phone. (a) False (b) True
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 20 px
   Caption: 13 px
   Body text: 10 px
6. 6.🖼️ How many parts (boxes) does this wireframe have?
   [ top bar ]
   [ Save button ]
   [ list of items ]
   [ Add button ]
   [ search box ]
   [ tab bar ]
7. 7.True or false: the screen layout is about UI (the look). (a) False (b) True
8. 8.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Match report”
   2. tap Back
   3. open “Match report”
   How many times must you tap Back to reach the main screen of this tab?
9. 9.Which of these is about UI (the look)? (a) how fast a task is done (b) whether users get lost (c) the theme colours (d) how users feel after
10. 10.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
11. 11.🧭 Why should every screen show where you are? (a) to look busy (b) to use more battery (c) to hide the menu (d) so users do not get lost
12. 12.🔢 In a sign-up flow, which comes FIRST? (a) open the app (b) type name and email (c) see the home screen (d) tap “Sign up”
13. 13.💾 What does this code show? (Positions start at 0.)
    let friends = ["Riya", "Aman", "Kabir", "Zoya", "Meera"];
    show(friends[3]); (a) Kabir (b) Riya (c) Zoya (d) Aman
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Body text: 17 px
    Menu: 19 px
15. 15.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
16. 16.💾 What does this code show? (Positions start at 0.)
    let friends = ["Zoya", "Aman", "Riya"];
    show(friends[0]); (a) Zoya (b) Riya (c) Aman
17. 17.💾 What number does this code show?
    let notes = ["Maths", "Sports"];
    notes.push("Hindi");
    notes.push("Music");
    show(notes.length);
18. 18.Which of these fits saving on the phone? (a) photos on two devices (b) a class leaderboard (c) notes to read offline (d) a shared to-do list
19. 19.💾 Which can hold many values in order? (a) a switch (b) a list (c) a button (d) a single number
20. 20.🧭 Which part of navigation switches main sections? (a) the back button (b) a menu button (c) a tab bar
21. 21.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ tab bar ]
    [ menu icon ]
    [ big picture ]
22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Edit photo”
    3. tap the Profile tab
    Which screen are you on now? (a) Edit photo (b) Map (c) Profile (d) Home
23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap Back
    3. open “Match report”
    4. tap the Home tab
    Which screen are you on now? (a) Home (b) Match report (c) Search (d) Badges
24. 24.🔀 Why plan the user flow before building? (a) to add more taps (b) so each step is clear (c) to skip testing (d) to hide the buttons
25. 25.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) in the middle (c) at the bottom (d) inside a button
26. 26.True or false: a class leaderboard fits saving on the phone. (a) False (b) True
27. 27.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
28. 28.🔢 In a food-order flow, which comes first: “open the menu” or “track the order”? (a) track the order (b) open the menu
29. 29.🔢 In a quiz-app flow, which comes first: “see if it is right” or “read a question”? (a) read a question (b) see if it is right
30. 30.True or false: chat messages to friends fits saving in the cloud. (a) False (b) True
31. 31.Which of these is true of a final design? (a) has no real colours (b) is a quick sketch (c) shows the real fonts (d) shows where things go
32. 32.🔢 In a sign-up flow, which comes LAST? (a) type name and email (b) see the home screen (c) tap “Sign up” (d) open the app
33. 33.🔘 Is this good or poor button design: a tiny 20 px button? (a) poor design (b) good design
34. 34.🔍 Which is the odd one out? (a) captions on videos (b) colour as the only clue (c) fast-flashing lights (d) sudden loud sounds
35. 35.💾 pop() takes off the last item. What does this code show?
    let notes = ["Sports", "Science", "Art"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Art (b) Sports (c) Science
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Menu → Confirm → Pay → Cart
    Design B: Home → Pens → Shop → Size → Menu → Cart
37. 37.🔢 In a sign-up flow, which comes first: “open the app” or “tap “Sign up””? (a) tap “Sign up” (b) open the app
38. 38.🔢 In a photo-post flow, which comes first: “open the camera screen” or “add a filter”? (a) open the camera screen (b) add a filter
39. 39.🔢 In a quiz-app flow, which comes FIRST? (a) see if it is right (b) see the final score (c) pick an answer (d) tap “Start quiz”
40. 40.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ Save button ]
    [ filter buttons ]
    [ big picture ]

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