App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 953 · 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.True or false: the icon shapes is about UX (the experience). (a) True (b) False
2. 2.💾 pop() takes off the last item. What does this code show?
   let notes = ["Maths", "Sports", "Hindi", "Art"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Hindi (b) Art (c) Maths (d) Sports
3. 3.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Start button: 36 px tall
   Help button: 52 px tall
   Cancel button: 36 px tall
   Done button: 60 px tall
4. 4.🔍 Which is the odd one out? (a) how easy sign-up is (b) how users feel after (c) how fast a task is done (d) the font size
5. 5.🔢 In a sign-up flow, what comes right after “open the app”? (a) see the home screen (b) make a password (c) enter the code sent (d) tap “Sign up”
6. 6.Which of these fits saving on the phone? (a) notes to read offline (b) photos on two devices (c) a class leaderboard (d) chat messages to friends
7. 7.🎨 Is this about UI or UX: the screen layout? (a) UX (b) UI
8. 8.✏️ A box with a cross in a wireframe usually means ___. (a) a closed app (b) an error (c) delete this (d) a picture goes here
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) fast typists (d) the battery
10. 10.True or false: a clear word like Save is poor button design. (a) True (b) False
11. 11.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
12. 12.True or false: a final design looks like the real app. (a) False (b) True
13. 13.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
14. 14.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 48 px tall
    Next button: 52 px tall
    Save button: 40 px tall
    Back button: 48 px tall (a) Help (b) Next (c) Back (d) Save
15. 15.🔢 In a photo-post flow, which comes LAST? (a) add a filter (b) post the photo (c) open the camera screen (d) write a caption
16. 16.💾 Where should the app save your last game level: on the phone or in the cloud? (a) in the cloud (b) on the phone
17. 17.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
18. 18.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
19. 19.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a long animation (d) a sound
20. 20.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 20 (c) 3 to 5 (d) 10 to 12
21. 21.💾 What number does this code show?
    let friends = ["Aman", "Kabir", "Riya"];
    friends.push("Meera");
    show(friends.length);
22. 22.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Address → Item → Menu → Cart
    Design B: Home → Offers → Address → Menu → Shop → Results → Cart (a) Design A (b) Design B
23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. open “Edit photo”
    3. tap Back
    Which screen are you on now? (a) Quiz (b) Edit photo (c) Lessons (d) Video
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Title: 16 px
    Label: 22 px
    Menu: 19 px
    Caption: 13 px (a) Hint (b) Title (c) Label (d) Caption
25. 25.🧭 Which part of navigation undoes one move? (a) a menu button (b) a tab bar (c) the back button
26. 26.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Science", "Hindi"];
    show(notes[1]); (a) Hindi (b) Science (c) Maths
27. 27.🌗 Is white on black easy or hard to read on a button? (a) easy to read (b) hard to read
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Label: 20 px
    Menu: 15 px
    Body text: 15 px
29. 29.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
30. 30.💾 What does this code show? (Positions start at 0.)
    let songs = ["Monsoon", "Rain", "Ocean", "Stars"];
    show(songs[2]); (a) Ocean (b) Stars (c) Rain (d) Monsoon
31. 31.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Friend list”
    3. tap the Me tab
    4. open “Video”
    5. tap Back
    Which screen are you on now? (a) Video (b) Lessons (c) Me (d) Friend list
33. 33.💾 What does this code show? (Positions start at 0.)
    let songs = ["Kites", "Monsoon", "Ocean", "Stars"];
    show(songs[0]); (a) Stars (b) Ocean (c) Kites (d) Monsoon
34. 34.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
35. 35.🎨 UI stands for user ___. (a) internet (b) input (c) interface (d) idea
36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Score card”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
37. 37.True or false: strong colour contrast is good button design. (a) False (b) True
38. 38.🌗 Is light grey on white easy or hard to read on a button? (a) easy to read (b) hard to read
39. 39.💾 What does this code show? (Positions start at 0.)
    let notes = ["Music", "Sports", "Science"];
    show(notes[2]); (a) Music (b) Sports (c) Science
40. 40.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ tab bar ]
    [ search box ]
    [ top bar ] (a) top bar (b) tab bar (c) list of items (d) search box

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