App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 596 · 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 is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) sudden loud sounds
2. 2.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Back button: 56 px tall
   Help button: 40 px tall
   Next button: 56 px tall
3. 3.🔢 In a food-order flow, what comes right after “pick a dish”? (a) add it to the cart (b) open the menu (c) check the cart (d) track the order
4. 4.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Send button: 28 px tall
   Back button: 52 px tall
   Cancel button: 48 px tall
   Next button: 48 px tall (a) Cancel (b) Next (c) Back (d) Send
5. 5.🔢 In a photo-post flow, what comes right after “add a filter”? (a) write a caption (b) open the camera screen (c) post the photo (d) take the photo
6. 6.🔢 In a sign-up flow, which comes FIRST? (a) enter the code sent (b) make a password (c) open the app (d) see the home screen
7. 7.🖼️ In this wireframe (top to bottom), what is right above the title text?
   [ top bar ]
   [ title text ]
   [ Save button ]
   [ tab bar ] (a) Save button (b) top bar (c) tab bar
8. 8.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
9. 9.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
10. 10.🧭 Which part of navigation opens a list of pages? (a) a menu button (b) a tab bar (c) the back button
11. 11.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Score card”
    3. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
12. 12.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 60 px tall
    Start button: 44 px tall
    Back button: 56 px tall
    Send button: 60 px tall (a) Start (b) Send (c) Help (d) Back
13. 13.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) big touch targets
14. 14.🌗 Is black on pale grey easy or hard to read on a button? (a) hard to read (b) easy to read
15. 15.💾 What number does this code show?
    let songs = ["Kites", "Stars", "Ocean"];
    songs.push("Rain");
    show(songs.length);
16. 16.🔢 In a food-order flow, which comes first: “add it to the cart” or “pick a dish”? (a) add it to the cart (b) pick a dish
17. 17.True or false: grey text on grey is poor button design. (a) False (b) True
18. 18.💾 What number does this code show?
    let coins = 7;
    coins = coins - 3;
    coins = coins + 2;
    show(coins);
19. 19.True or false: a tiny 20 px button is poor button design. (a) True (b) False
20. 20.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
21. 21.🔘 Our rule: buttons are at least 48 px tall. The Save button is 24 px tall. How many px taller must it be?
22. 22.🔢 In a sign-up flow, which comes LAST? (a) enter the code sent (b) see the home screen (c) type name and email (d) make a password
23. 23.🌗 Is black on yellow easy or hard to read on a button? (a) easy to read (b) hard to read
24. 24.🌗 Is light grey on white easy or hard to read on a button? (a) easy to read (b) hard to read
25. 25.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) the back button (c) a menu button
26. 26.Which of these is about UI (the look)? (a) how fast a task is done (b) whether users get lost (c) how many taps it takes (d) the screen layout
27. 27.Which colour pair is easy to read? (a) black on pale grey (b) red on green (c) dark blue on black (d) light grey on white
28. 28.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) looks like the real app (d) shows where things go
29. 29.Which of these fits saving in the cloud? (a) notes to read offline (b) your last game level (c) the sound on/off setting (d) chat messages to friends
30. 30.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) a closed app (c) a picture goes here (d) delete this
31. 31.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
32. 32.🔘 Our rule: buttons are at least 48 px tall. The Start button is 44 px tall. How many px taller must it be?
33. 33.💾 What number does this code show?
    let friends = ["Arjun", "Kabir"];
    friends.push("Aman");
    friends.push("Meera");
    show(friends.length);
34. 34.🔍 Which is the odd one out? (a) how easy sign-up is (b) the theme colours (c) the icon shapes (d) the button colours
35. 35.🔢 In a food-order flow, what comes right after “check the cart”? (a) add it to the cart (b) pay for the order (c) track the order (d) open the menu
36. 36.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Badges”
    3. tap the Me tab
    4. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
38. 38.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
39. 39.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Quiz tab
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Hint: 11 px
    Caption: 11 px
    Menu: 14 px
    Label: 18 px

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