App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 447 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 16 px
   Body text: 16 px
   Menu: 13 px
   Label: 27 px (a) Menu (b) Title (c) Label (d) Body text
2. 2.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
3. 3.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
4. 4.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) dead end (c) shortcut (d) tab bar
5. 5.💾 What number does this code show?
   let lives = 9;
   lives = lives - 2;
   lives = lives + 4;
   show(lives);
6. 6.💾 pop() takes off the last item. What does this code show?
   let friends = ["Meera", "Zoya", "Riya", "Arjun"];
   friends.pop();
   show(friends[friends.length - 1]); (a) Meera (b) Arjun (c) Riya (d) Zoya
7. 7.🌗 Is dark blue on black easy or hard to read on a button? (a) hard to read (b) easy to read
8. 8.💾 pop() takes off the last item. What does this code show?
   let songs = ["Kites", "Stars", "Sunrise"];
   songs.pop();
   show(songs[songs.length - 1]); (a) Sunrise (b) Stars (c) Kites
9. 9.🔘 Our rule: buttons are at least 48 px tall. The Start button is 20 px tall. How many px taller must it be?
10. 10.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
11. 11.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. tap the Lessons tab
    3. tap the Me tab
    4. open “Score card”
    Which screen are you on now? (a) Quiz (b) Lessons (c) Score card (d) Me
12. 12.💾 What number does this code show?
    let friends = ["Kabir", "Riya"];
    friends.push("Meera");
    show(friends.length);
13. 13.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Pens
    Design B: Home → Cart → Item → Search → Address
14. 14.🔢 In a quiz-app flow, which comes LAST? (a) read a question (b) tap “Start quiz” (c) pick an answer (d) see the final score
15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap the Home tab
    3. tap the Home tab
    4. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
16. 16.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
17. 17.Which of these fits saving in the cloud? (a) the sound on/off setting (b) your last game level (c) a draft you are typing (d) chat messages to friends
18. 18.🔢 In a food-order flow, which comes LAST? (a) pick a dish (b) track the order (c) add it to the cart (d) check the cart
19. 19.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
20. 20.True or false: a class leaderboard fits saving on the phone. (a) False (b) True
21. 21.True or false: a final design looks like the real app. (a) False (b) True
22. 22.🔢 In a food-order flow, which comes first: “track the order” or “open the menu”? (a) track the order (b) open the menu
23. 23.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
24. 24.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Pens → Confirm → Results → Cart → Shop → Menu
    Design B: Home → Confirm → Search → Pens → Offers → Cart
25. 25.🎨 Who should you test the UX with? (a) nobody (b) real users (c) only yourself (d) the app icon
26. 26.🔢 In a quiz-app flow, which comes first: “see if it is right” or “pick an answer”? (a) see if it is right (b) pick an answer
27. 27.🔢 In a food-order flow, which comes first: “pay for the order” or “track the order”? (a) track the order (b) pay for the order
28. 28.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Pens → Results → Menu → Offers → Address
    Design B: Home → Cart → Shop (a) Design A (b) Design B
29. 29.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 18 px
    Title: 16 px
    Footer: 20 px
    Body text: 16 px
    Caption: 24 px
31. 31.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Pay → Item → Results → Search → Size
    Design B: Home → Size → Pens → Menu → Shop (a) Design A (b) Design B
32. 32.🧭 Which part of navigation opens a list of pages? (a) a menu button (b) the back button (c) a tab bar
33. 33.True or false: the sound on/off setting fits saving on the phone. (a) False (b) True
34. 34.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Hint: 22 px
    Caption: 13 px
    Body text: 21 px
    Menu: 24 px (a) Hint (b) Caption (c) Body text (d) Title
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Shop → Search → Pay → Confirm → Results
    Design B: Home → Search → Confirm → Item
37. 37.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) pick an answer (b) tap “Start quiz” (c) read a question (d) see the final score
38. 38.🔍 Which is the odd one out? (a) the font size (b) the icon shapes (c) how fast a task is done (d) the theme colours
39. 39.🖼️ How many parts (boxes) does this wireframe have?
    [ filter buttons ]
    [ title text ]
    [ big picture ]
    [ Add button ]
    [ Save button ]
40. 40.🔘 Our rule: buttons are at least 48 px tall. The Help button is 24 px tall. How many px taller must it be?

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