App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 236 · 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.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Size → Menu → Shop → Cart → Confirm → Item
   Design B: Home → Pens → Size (a) Design B (b) Design A
2. 2.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
3. 3.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Confirm → Pens → Cart → Offers
   Design B: Home → Results → Address → Item
4. 4.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) labels on every icon (d) captions on videos
5. 5.✏️ What is a wireframe? (a) the finished app (b) a simple screen sketch (c) a type of password (d) a charging cable
6. 6.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) goes to the last screen (c) hides extra links (d) switches main sections
7. 7.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Pay → Address
   Design B: Home → Pay → Menu → Cart
8. 8.🔢 In a quiz-app flow, which comes first: “read a question” or “pick an answer”? (a) pick an answer (b) read a question
9. 9.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Pay → Cart → Confirm → Size → Item
   Design B: Home → Pens → Results
10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Edit photo”
    3. open “Help page”
    4. tap the Chat tab
    5. tap the Chat tab
    Which screen are you on now? (a) Edit photo (b) Help page (c) Feed (d) Chat
11. 11.🎨 A beautiful app that confuses everyone has ___. (a) no UI at all (b) perfect UX (c) good UI but poor UX (d) good UX but poor UI
12. 12.Which of these is about UX (the experience)? (a) the button colours (b) whether users get lost (c) the font size (d) the screen layout
13. 13.💾 pop() takes off the last item. What does this code show?
    let friends = ["Arjun", "Zoya", "Meera", "Aman", "Kabir"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Arjun (b) Zoya (c) Meera (d) Aman
14. 14.Which of these is true of the back button? (a) opens a list of pages (b) shows 3 to 5 icons (c) sits at the bottom (d) goes to the last screen
15. 15.Which of these is true of a final design? (a) shows where things go (b) has no real colours (c) is a quick sketch (d) has the real colours
16. 16.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ filter buttons ]
    [ list of items ]
    [ tab bar ]
    [ big picture ]
    [ menu icon ]
17. 17.🧭 What does the back button usually do? (a) opens settings (b) deletes the page (c) closes all apps (d) goes to the last screen
18. 18.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) sudden loud sounds
19. 19.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) the same screen (c) a dead end (d) a clear next step
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Menu: 24 px
    Body text: 17 px
    Title: 24 px
    Label: 16 px
21. 21.💾 What does this code show? (Positions start at 0.)
    let friends = ["Arjun", "Zoya", "Riya"];
    show(friends[0]); (a) Zoya (b) Arjun (c) Riya
22. 22.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) tab bar (c) dead end (d) shortcut
23. 23.🔢 In a sign-up flow, which comes LAST? (a) open the app (b) enter the code sent (c) type name and email (d) see the home screen
24. 24.True or false: the theme colours is about UI (the look). (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) how many taps it takes (b) how users feel after (c) the font size (d) how easy sign-up is
26. 26.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
27. 27.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
28. 28.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
29. 29.🔢 In a quiz-app flow, what comes right after “read a question”? (a) see if it is right (b) tap “Start quiz” (c) see the final score (d) pick an answer
30. 30.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
31. 31.🎨 Is this about UI or UX: how users feel after? (a) UX (b) UI
32. 32.True or false: a tiny 20 px button is poor button design. (a) True (b) False
33. 33.🔘 Our rule: buttons are at least 48 px tall. The Help button is 20 px tall. How many px taller must it be?
34. 34.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ search box ]
    [ top bar ]
    [ Save button ]
    [ filter buttons ]
    [ tab bar ]
    [ big picture ] (a) top bar (b) tab bar (c) search box (d) Save button
35. 35.🌗 Is red on green easy or hard to read on a button? (a) hard to read (b) easy to read
36. 36.True or false: chat messages to friends fits saving on the phone. (a) True (b) False
37. 37.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ top bar ]
    [ tab bar ]
    [ filter buttons ]
    [ menu icon ] (a) top bar (b) menu icon (c) tab bar
38. 38.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) big touch targets (d) sudden loud sounds
39. 39.🔢 In a photo-post flow, which comes first: “open the camera screen” or “write a caption”? (a) open the camera screen (b) write a caption
40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Match report”
    4. tap Back
    5. open “Friend list”
    Which screen are you on now? (a) Search (b) Friend list (c) Home (d) Match report

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