App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 888 · 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.🔀 What is a user flow? (a) a charging cable (b) a colour theme (c) a type of font (d) the path through screens
2. 2.🔍 Which is the odd one out? (a) the theme colours (b) how easy sign-up is (c) how users feel after (d) how many taps it takes
3. 3.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Offers → Pay → Search → Shop → Menu → Size
   Design B: Home → Item → Menu
4. 4.True or false: how fast a task is done is about UX (the experience). (a) True (b) False
5. 5.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Edit photo”
   2. open “Match report”
   3. open “Friend list”
   4. tap Back
   How many times must you tap Back to reach the main screen of this tab?
6. 6.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
7. 7.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Edit photo”
   2. tap the Chat tab
   3. tap the Settings tab
   4. open “Badges”
   Which screen are you on now? (a) Feed (b) Edit photo (c) Badges (d) Chat
8. 8.Which of these is true of the back button? (a) switches main sections (b) shows 3 to 5 icons (c) opens a list of pages (d) goes to the last screen
9. 9.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Next button: 48 px tall
   Save button: 56 px tall
   Start button: 52 px tall
   Help button: 44 px tall
10. 10.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
11. 11.Which of these fits saving on the phone? (a) chat messages to friends (b) a class leaderboard (c) photos on two devices (d) your last game level
12. 12.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
13. 13.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap the Me tab
    3. tap the Quiz tab
    4. tap the Lessons tab
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
14. 14.🔢 In a photo-post flow, what comes right after “write a caption”? (a) post the photo (b) open the camera screen (c) take the photo (d) add a filter
15. 15.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) delete this (c) a closed app (d) a picture goes here
16. 16.💾 What number does this code show?
    let notes = ["Sports", "Art"];
    notes.push("Hindi");
    notes.push("Science");
    show(notes.length);
17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Edit photo”
    3. open “Map”
    Which screen are you on now? (a) Search (b) Edit photo (c) Home (d) Map
18. 18.🔢 In a food-order flow, what comes right after “pick a dish”? (a) track the order (b) open the menu (c) pay for the order (d) add it to the cart
19. 19.Which of these is about UX (the experience)? (a) the font size (b) how fast a task is done (c) the theme colours (d) the screen layout
20. 20.True or false: a shared to-do list fits saving on the phone. (a) False (b) True
21. 21.💾 pop() takes off the last item. What does this code show?
    let notes = ["Maths", "Hindi", "Science", "Music", "Sports"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Music (b) Hindi (c) Maths (d) Science
22. 22.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 72 px tall
    Save button: 44 px tall
    Start button: 72 px tall (a) Start (b) Save (c) Cancel
23. 23.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
24. 24.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) strong colour contrast
26. 26.Which of these is true of a menu button? (a) opens a list of pages (b) undoes one move (c) shows 3 to 5 icons (d) goes to the last screen
27. 27.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
28. 28.🖼️ In this wireframe (top to bottom), what is right below the big picture?
    [ big picture ]
    [ list of items ]
    [ menu icon ]
    [ Save button ]
    [ Add button ] (a) Save button (b) list of items (c) Add button (d) menu icon
29. 29.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) open the menu (b) check the cart (c) pay for the order (d) pick a dish
30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Lessons tab
    3. open “Score card”
    Which screen are you on now? (a) Lessons (b) Quiz (c) Score card (d) Me
31. 31.🔢 In a sign-up flow, what comes right after “open the app”? (a) see the home screen (b) type name and email (c) tap “Sign up” (d) enter the code sent
32. 32.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ filter buttons ]
    [ Save button ]
    [ list of items ]
    [ big picture ]
    [ menu icon ]
    [ search box ] (a) big picture (b) Save button (c) search box (d) list of items
33. 33.🖼️ In this wireframe (top to bottom), what is right above the top bar?
    [ title text ]
    [ menu icon ]
    [ Save button ]
    [ top bar ]
    [ list of items ]
    [ tab bar ] (a) menu icon (b) tab bar (c) title text (d) Save button
34. 34.True or false: the theme colours is about UX (the experience). (a) False (b) True
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Title: 28 px
    Hint: 9 px (a) Menu (b) Title (c) Hint
36. 36.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Offers → Cart → Confirm → Pens
    Design B: Home → Cart → Pens (a) Design A (b) Design B
37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Chat tab
    3. open “Badges”
    4. open “Edit photo”
    5. tap the Chat tab
    Which screen are you on now? (a) Chat (b) Badges (c) Map (d) Edit photo
38. 38.Which of these is true of a tab bar? (a) hides extra links (b) goes to the last screen (c) shows 3 to 5 icons (d) undoes one move
39. 39.True or false: a big, easy tap area is good button design. (a) False (b) True
40. 40.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI

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