App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 369 · 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.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
   [ menu icon ]
   [ filter buttons ]
   [ search box ]
   [ tab bar ]
   [ top bar ]
   [ big picture ] (a) top bar (b) tab bar (c) search box (d) menu icon
2. 2.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Cart → Search → Results → Size → Pay
   Design B: Home → Results → Search → Menu
3. 3.Which of these is about UI (the look)? (a) how users feel after (b) the theme colours (c) how easy sign-up is (d) how fast a task is done
4. 4.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) labels on every icon (d) colour as the only clue
5. 5.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) dead end (c) shortcut (d) home screen
6. 6.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) text that can grow
7. 7.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Edit photo”
   2. open “Score card”
   3. open “Map”
   Which screen are you on now? (a) Score card (b) Map (c) Edit photo (d) Home
9. 9.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Hint: 22 px
    Title: 24 px
11. 11.Which of these is true of a menu button? (a) sits at the bottom (b) opens a list of pages (c) goes to the last screen (d) shows 3 to 5 icons
12. 12.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
13. 13.✏️ Why draw a wireframe before coding? (a) it runs the app (b) changes are quick (c) it saves data (d) it adds colours
14. 14.💾 pop() takes off the last item. What does this code show?
    let friends = ["Kabir", "Arjun", "Zoya", "Aman"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Aman (b) Arjun (c) Zoya (d) Kabir
15. 15.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
16. 16.🔍 Which is the odd one out? (a) the button colours (b) how users feel after (c) the font size (d) the theme colours
17. 17.🔍 Which is the odd one out? (a) how users feel after (b) whether users get lost (c) how easy sign-up is (d) the theme colours
18. 18.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Video”
    3. tap the Me tab
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
19. 19.💾 What number does this code show?
    let friends = ["Aman", "Meera", "Arjun"];
    friends.push("Riya");
    friends.push("Zoya");
    show(friends.length);
20. 20.🌗 Is dark blue on white easy or hard to read on a button? (a) easy to read (b) hard to read
21. 21.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 28 px tall
    Save button: 68 px tall
    Help button: 64 px tall
    Start button: 64 px tall (a) Start (b) Help (c) Save (d) Cancel
22. 22.🔢 In a sign-up flow, which comes first: “open the app” or “make a password”? (a) open the app (b) make a password
23. 23.🔀 What is a user flow? (a) a charging cable (b) a colour theme (c) the path through screens (d) a type of font
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Menu: 13 px
    Label: 22 px
    Caption: 23 px
    Title: 17 px (a) Body text (b) Menu (c) Caption (d) Label
25. 25.💾 Which can hold many values in order? (a) a button (b) a single number (c) a list (d) a switch
26. 26.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Edit photo”
    3. open “Edit photo”
    4. open “Help page”
    5. tap the Profile tab
    Which screen are you on now? (a) Help page (b) Badges (c) Edit photo (d) Profile
28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Map”
    3. open “Match report”
    4. tap the Feed tab
    5. open “Help page”
    Which screen are you on now? (a) Match report (b) Help page (c) Map (d) Feed
29. 29.🧭 Tapping a tab usually takes you to ___. (a) the last app used (b) the phone settings (c) that tab’s main screen (d) a random page
30. 30.True or false: the icon shapes is about UX (the experience). (a) True (b) False
31. 31.🌗 Is yellow on white easy or hard to read on a button? (a) easy to read (b) hard to read
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 17 px
    Title: 12 px
    Body text: 22 px (a) Footer (b) Body text (c) Title
33. 33.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) labels on every icon (d) colour as the only clue
34. 34.🔍 Which is the odd one out? (a) the icon shapes (b) how easy sign-up is (c) how many taps it takes (d) how fast a task is done
35. 35.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 36 px tall
    Back button: 52 px tall
    Done button: 52 px tall (a) Done (b) Back (c) Cancel
36. 36.Which of these is true of a final design? (a) has no real colours (b) uses plain grey boxes (c) has the real colours (d) is a quick sketch
37. 37.✏️ What is a wireframe? (a) a simple screen sketch (b) a charging cable (c) the finished app (d) a type of password
38. 38.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
39. 39.🔢 In a food-order flow, which comes FIRST? (a) track the order (b) add it to the cart (c) check the cart (d) open the menu
40. 40.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a dead end (c) a clear next step (d) a random page

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