App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 503 · 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 can hold many values in order? (a) a switch (b) a list (c) a single number (d) a button
2. 2.🎨 A beautiful app that confuses everyone has ___. (a) good UI but poor UX (b) no UI at all (c) good UX but poor UI (d) perfect UX
3. 3.🔀 Why plan the user flow before building? (a) to hide the buttons (b) to add more taps (c) to skip testing (d) so each step is clear
4. 4.Which of these is about UI (the look)? (a) how users feel after (b) how many taps it takes (c) the font size (d) how fast a task is done
5. 5.Which colour pair is hard to read? (a) dark blue on white (b) pale pink on white (c) black on pale grey (d) black on yellow
6. 6.Which of these is about UX (the experience)? (a) the theme colours (b) the screen layout (c) the icon shapes (d) how users feel after
7. 7.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
8. 8.🖼️ How many parts (boxes) does this wireframe have?
   [ Add button ]
   [ tab bar ]
   [ search box ]
   [ filter buttons ]
   [ title text ]
   [ top bar ]
9. 9.True or false: the theme colours is about UX (the experience). (a) True (b) False
10. 10.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
11. 11.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
12. 12.🎨 Is this about UI or UX: how fast a task is done? (a) UI (b) UX
13. 13.🧭 Which part of navigation switches main sections? (a) a tab bar (b) the back button (c) a menu button
14. 14.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. open “Map”
    3. tap Back
    4. open “Badges”
    5. tap Back
    Which screen are you on now? (a) Map (b) Home (c) Badges (d) Edit photo
16. 16.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 32 px tall
    Done button: 56 px tall
    Save button: 52 px tall (a) Save (b) Send (c) Done
17. 17.True or false: how many taps it takes is about UX (the experience). (a) False (b) True
18. 18.🖼️ In this wireframe (top to bottom), what is right below the big picture?
    [ list of items ]
    [ menu icon ]
    [ big picture ]
    [ filter buttons ]
    [ Add button ] (a) Add button (b) list of items (c) filter buttons (d) menu icon
19. 19.💾 pop() takes off the last item. What does this code show?
    let friends = ["Riya", "Zoya", "Kabir", "Meera", "Aman"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Meera (b) Zoya (c) Riya (d) Kabir
20. 20.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Address → Shop
    Design B: Home → Item → Pay → Pens → Search → Offers (a) Design B (b) Design A
21. 21.True or false: your last game level fits saving in the cloud. (a) True (b) False
22. 22.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Pens → Pay → Offers → Results → Size
    Design B: Home → Item → Menu
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Footer: 14 px
    Label: 22 px
    Hint: 16 px
    Menu: 19 px
24. 24.🧭 Tapping a tab usually takes you to ___. (a) the phone settings (b) that tab’s main screen (c) a random page (d) the last app used
25. 25.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
26. 26.Which of these fits saving on the phone? (a) photos on two devices (b) a class leaderboard (c) the sound on/off setting (d) chat messages to friends
27. 27.🔍 Which is the odd one out? (a) how many taps it takes (b) how users feel after (c) the button colours (d) how fast a task is done
28. 28.True or false: notes to read offline fits saving in the cloud. (a) False (b) True
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Title: 22 px
    Body text: 14 px
30. 30.💾 Data saved only on the phone is lost when ___. (a) the screen turns off (b) the app is closed (c) the phone is lost (d) you send a message
31. 31.🔢 In a sign-up flow, which comes first: “see the home screen” or “open the app”? (a) open the app (b) see the home screen
32. 32.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) colour as the only clue (d) strong colour contrast
33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Video”
    3. open “Score card”
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
34. 34.💾 pop() takes off the last item. What does this code show?
    let notes = ["Music", "Hindi", "Maths", "Science"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Hindi (c) Science (d) Music
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Menu: 22 px
    Hint: 17 px
    Caption: 24 px
    Footer: 19 px (a) Menu (b) Body text (c) Caption (d) Hint
36. 36.🖼️ How many parts (boxes) does this wireframe have?
    [ list of items ]
    [ big picture ]
    [ Save button ]
    [ title text ]
    [ top bar ]
37. 37.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) sudden loud sounds (d) strong colour contrast
38. 38.💾 What number does this code show?
    let score = 8;
    score = score - 1;
    score = score + 5;
    show(score);
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 22 px
    Hint: 10 px
    Footer: 21 px (a) Hint (b) Footer (c) Label
40. 40.💾 pop() takes off the last item. What does this code show?
    let friends = ["Meera", "Arjun", "Kabir", "Zoya", "Riya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Meera (b) Kabir (c) Zoya (d) Arjun

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