App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 851 · 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) how users feel after (b) how easy sign-up is (c) the button colours (d) how fast a task is done
2. 2.🎨 Fewer taps to finish a task usually means ___. (a) more colours (b) better UX (c) a bigger app (d) worse UX
3. 3.🎨 Who should you test the UX with? (a) nobody (b) the app icon (c) real users (d) only yourself
4. 4.💾 What number does this code show?
   let notes = ["Maths", "Music"];
   notes.push("Hindi");
   show(notes.length);
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Address → Size → Pens → Pay
   Design B: Home → Cart → Confirm → Address
6. 6.🔘 Our rule: buttons are at least 48 px tall. The Back button is 20 px tall. How many px taller must it be?
7. 7.Which of these is about UI (the look)? (a) how users feel after (b) how fast a task is done (c) the icon shapes (d) whether users get lost
8. 8.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
9. 9.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Cancel button: 48 px tall
   Next button: 56 px tall
   Send button: 36 px tall
10. 10.Which of these fits saving in the cloud? (a) notes to read offline (b) a shared to-do list (c) the sound on/off setting (d) your last game level
11. 11.Which of these is about UI (the look)? (a) how many taps it takes (b) how easy sign-up is (c) the button colours (d) how fast a task is done
12. 12.Which colour pair is hard to read? (a) black on yellow (b) red on green (c) white on black (d) white on dark green
13. 13.🔢 In a photo-post flow, what comes right after “take the photo”? (a) add a filter (b) post the photo (c) open the camera screen (d) write a caption
14. 14.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone
15. 15.💾 What number does this code show?
    let notes = ["Music", "Art"];
    notes.push("Science");
    show(notes.length);
16. 16.True or false: grey text on grey is poor button design. (a) True (b) False
17. 17.Which of these fits saving on the phone? (a) a shared to-do list (b) chat messages to friends (c) photos on two devices (d) notes to read offline
18. 18.🔀 What is a user flow? (a) the path through screens (b) a charging cable (c) a type of font (d) a colour theme
19. 19.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
20. 20.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to use more battery (c) to hide the menu (d) to look busy
21. 21.🖼️ How many parts (boxes) does this wireframe have?
    [ list of items ]
    [ big picture ]
    [ filter buttons ]
    [ menu icon ]
22. 22.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 40 px tall
    Back button: 32 px tall
    Start button: 48 px tall
    Done button: 64 px tall
23. 23.🔍 Which is the odd one out? (a) the font size (b) how users feel after (c) the theme colours (d) the button colours
24. 24.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe
25. 25.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) at the bottom (c) inside a button (d) in the middle
26. 26.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) shortcut (c) dead end (d) home screen
27. 27.🎨 Is this about UI or UX: how users feel after? (a) UX (b) UI
28. 28.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ menu icon ]
    [ title text ]
    [ search box ]
    [ filter buttons ] (a) filter buttons (b) menu icon (c) title text
29. 29.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
30. 30.🔍 Which is the odd one out? (a) the font size (b) how many taps it takes (c) how fast a task is done (d) whether users get lost
31. 31.True or false: strong colour contrast is poor button design. (a) False (b) True
32. 32.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
33. 33.🎨 Is this about UI or UX: the theme colours? (a) UI (b) UX
34. 34.Which colour pair is hard to read? (a) light grey on white (b) white on black (c) white on dark green (d) dark blue on white
35. 35.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) fast-flashing lights (d) captions on videos
36. 36.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Confirm → Item
    Design B: Home → Search → Pens → Offers → Confirm → Pay → Cart (a) Design B (b) Design A
37. 37.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 44 px tall
    Save button: 56 px tall
    Next button: 68 px tall (a) Save (b) Back (c) Next
38. 38.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Results → Item → Confirm
    Design B: Home → Search → Address (a) Design A (b) Design B
39. 39.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ filter buttons ]
    [ Save button ]
    [ tab bar ]
    [ menu icon ]
    [ search box ]
    [ big picture ] (a) tab bar (b) filter buttons (c) menu icon (d) search box
40. 40.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Map”
    3. tap Back
    4. tap the Me tab
    5. tap the Quiz tab
    Which screen are you on now? (a) Map (b) Lessons (c) Me (d) Quiz

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