App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 183 · 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 plain grey boxes (b) uses the final pictures (c) has the real colours (d) shows the real fonts
2. 2.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ tab bar ]
   [ search box ]
   [ big picture ]
   [ list of items ]
   [ Add button ] (a) Add button (b) search box (c) tab bar (d) big picture
3. 3.🧭 Which part of navigation switches main sections? (a) the back button (b) a menu button (c) a tab bar
4. 4.True or false: a wireframe is a quick sketch. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) the icon shapes (b) how users feel after (c) the font size (d) the screen layout
6. 6.🔢 In a photo-post flow, what comes right after “write a caption”? (a) open the camera screen (b) take the photo (c) post the photo (d) add a filter
7. 7.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Offers → Pay → Menu → Address → Results
   Design B: Home → Cart → Search → Pens → Item → Shop → Confirm
8. 8.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) on the phone (b) in the cloud
9. 9.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Address → Results → Search
   Design B: Home → Menu → Cart → Offers → Address → Item
10. 10.True or false: your last game level fits saving in the cloud. (a) True (b) False
11. 11.🔢 In a photo-post flow, which comes first: “post the photo” or “take the photo”? (a) post the photo (b) take the photo
12. 12.True or false: how users feel after is about UX (the experience). (a) False (b) True
13. 13.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) big touch targets
14. 14.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Quiz tab
    3. open “Friend list”
    Which screen are you on now? (a) Quiz (b) Friend list (c) Lessons (d) Me
15. 15.💾 What number does this code show?
    let coins = 9;
    coins = coins - 6;
    coins = coins + 1;
    show(coins);
16. 16.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
17. 17.Which of these is true of a wireframe? (a) shows the real fonts (b) has no real colours (c) has the real colours (d) uses the final pictures
18. 18.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Size → Shop
    Design B: Home → Menu → Search → Pay → Address → Offers → Cart
19. 19.Which of these fits saving in the cloud? (a) a class leaderboard (b) a draft you are typing (c) the sound on/off setting (d) your last game level
20. 20.💾 What number does this code show?
    let coins = 9;
    coins = coins - 6;
    coins = coins + 2;
    show(coins);
21. 21.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
22. 22.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) tap “Start quiz” (b) see if it is right (c) see the final score (d) read a question
23. 23.💾 What number does this code show?
    let friends = ["Meera", "Aman", "Zoya"];
    friends.push("Riya");
    friends.push("Kabir");
    show(friends.length);
24. 24.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Shop → Size → Pens → Offers → Cart
    Design B: Home → Size → Search → Shop → Results (a) Design A (b) Design B
25. 25.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 72 px tall
    Save button: 36 px tall
    Send button: 52 px tall
    Help button: 52 px tall (a) Save (b) Send (c) Help (d) Start
26. 26.🔀 What is a user flow? (a) a colour theme (b) a charging cable (c) a type of font (d) the path through screens
27. 27.🔢 In a food-order flow, which comes LAST? (a) pick a dish (b) add it to the cart (c) pay for the order (d) track the order
28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. tap the Feed tab
    3. open “Match report”
    4. tap the Feed tab
    Which screen are you on now? (a) Chat (b) Feed (c) Settings (d) Match report
29. 29.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Address → Offers
    Design B: Home → Menu → Cart → Results → Address → Shop
30. 30.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
31. 31.Which of these is true of a final design? (a) has no real colours (b) shows where things go (c) uses plain grey boxes (d) looks like the real app
32. 32.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a long animation (d) a text label
33. 33.🔍 Which is the odd one out? (a) the font size (b) the screen layout (c) the icon shapes (d) how fast a task is done
34. 34.💾 What number does this code show?
    let songs = ["Kites", "Ocean", "Rain", "Stars"];
    songs.push("Sunrise");
    songs.push("Monsoon");
    show(songs.length);
35. 35.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) write a caption (c) open the camera screen (d) post the photo
36. 36.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap the Chat tab
    3. tap the Chat tab
    4. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Menu: 19 px
    Title: 18 px
    Hint: 12 px
39. 39.🔢 In a quiz-app flow, which comes first: “see the final score” or “see if it is right”? (a) see the final score (b) see if it is right
40. 40.Which of these is true of a wireframe? (a) has the real colours (b) looks like the real app (c) is a quick sketch (d) shows the real fonts

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