App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 242 · 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: “labels on every icon” helps everyone use the app. (a) False (b) True
2. 2.💾 What number does this code show?
   let notes = ["Art", "Hindi", "Sports"];
   notes.push("Science");
   notes.push("Maths");
   show(notes.length);
3. 3.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Item → Menu
   Design B: Home → Size → Search → Shop → Menu → Offers → Pens
4. 4.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
5. 5.🔢 In a food-order flow, what comes right after “open the menu”? (a) pick a dish (b) add it to the cart (c) pay for the order (d) track the order
6. 6.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 3 to 5 (c) 10 to 12 (d) 1
7. 7.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
8. 8.Which of these is true of a tab bar? (a) opens a list of pages (b) undoes one move (c) hides extra links (d) sits at the bottom
9. 9.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
10. 10.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ tab bar ]
    [ list of items ]
    [ menu icon ]
    [ big picture ] (a) menu icon (b) big picture (c) tab bar
11. 11.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ filter buttons ]
    [ top bar ]
    [ search box ]
    [ tab bar ] (a) tab bar (b) top bar (c) search box (d) filter buttons
12. 12.True or false: how users feel after is about UX (the experience). (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) the theme colours (b) the button colours (c) the icon shapes (d) how easy sign-up is
14. 14.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Pens
    Design B: Home → Menu → Pens → Shop → Confirm (a) Design B (b) Design A
15. 15.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
16. 16.🔢 In a photo-post flow, which comes LAST? (a) post the photo (b) take the photo (c) add a filter (d) open the camera screen
17. 17.True or false: a clear word like Save is poor button design. (a) True (b) False
18. 18.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 44 px tall
    Back button: 52 px tall
    Help button: 68 px tall
    Next button: 72 px tall (a) Help (b) Start (c) Back (d) Next
19. 19.Which colour pair is hard to read? (a) yellow on white (b) dark blue on white (c) black on pale grey (d) white on black
20. 20.💾 What number does this code show?
    let notes = ["Science", "Maths", "Art", "Music"];
    notes.push("Hindi");
    show(notes.length);
21. 21.Which of these is true of the back button? (a) switches main sections (b) sits at the bottom (c) shows 3 to 5 icons (d) undoes one move
22. 22.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Offers → Shop → Menu → Search → Confirm
    Design B: Home → Size → Search → Pens (a) Design A (b) Design B
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Menu: 14 px
    Hint: 11 px
    Caption: 21 px
24. 24.🔀 A screen with no way forward or back is called a ___. (a) shortcut (b) tab bar (c) home screen (d) dead end
25. 25.🔢 In a photo-post flow, what comes right after “add a filter”? (a) take the photo (b) open the camera screen (c) post the photo (d) write a caption
26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Map”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
27. 27.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) the back button (c) a menu button
28. 28.Which of these fits saving on the phone? (a) chat messages to friends (b) photos on two devices (c) the sound on/off setting (d) a shared to-do list
29. 29.True or false: a final design shows where things go. (a) False (b) True
30. 30.🔢 In a photo-post flow, which comes FIRST? (a) add a filter (b) open the camera screen (c) take the photo (d) write a caption
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Menu: 23 px
    Body text: 27 px
    Footer: 20 px (a) Hint (b) Menu (c) Footer (d) Body text
32. 32.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
33. 33.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
34. 34.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ tab bar ]
    [ top bar ]
    [ big picture ]
    [ menu icon ]
    [ search box ]
    [ Add button ] (a) big picture (b) Add button (c) menu icon (d) tab bar
35. 35.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) on the phone (b) in the cloud
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Body text: 14 px
    Label: 16 px
37. 37.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Pens → Results
    Design B: Home → Pens → Shop → Menu → Confirm → Cart → Results
38. 38.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
39. 39.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) colour as the only clue (d) big touch targets
40. 40.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Music", "Science", "Art"];
    show(notes[1]); (a) Science (b) Music (c) Maths (d) Art

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