App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 59 · 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.💾 What number does this code show?
   let songs = ["Stars", "Sunrise", "Monsoon", "Kites"];
   songs.push("Rain");
   show(songs.length);
2. 2.🌗 Is yellow on white easy or hard to read on a button? (a) hard to read (b) easy to read
3. 3.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “read a question”? (a) read a question (b) tap “Start quiz”
4. 4.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 10 to 12 (c) 3 to 5 (d) 20
5. 5.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Item → Pay
   Design B: Home → Confirm → Search → Size (a) Design B (b) Design A
6. 6.🔀 Why plan the user flow before building? (a) to hide the buttons (b) so each step is clear (c) to add more taps (d) to skip testing
7. 7.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
8. 8.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) colour-blind users (d) fast typists
10. 10.🔢 In a photo-post flow, which comes FIRST? (a) open the camera screen (b) take the photo (c) post the photo (d) write a caption
11. 11.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) sudden loud sounds (d) captions on videos
12. 12.Which of these is true of a menu button? (a) hides extra links (b) switches main sections (c) shows 3 to 5 icons (d) goes to the last screen
13. 13.🧭 Which part of navigation goes to the last screen? (a) a tab bar (b) a menu button (c) the back button
14. 14.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) fast-flashing lights (d) text that can grow
15. 15.Which of these fits saving on the phone? (a) photos on two devices (b) a shared to-do list (c) a draft you are typing (d) chat messages to friends
16. 16.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
17. 17.🔍 Which is the odd one out? (a) whether users get lost (b) the button colours (c) the font size (d) the icon shapes
18. 18.🔘 Our rule: buttons are at least 48 px tall. The Next button is 20 px tall. How many px taller must it be?
19. 19.🔢 In a photo-post flow, what comes right after “take the photo”? (a) open the camera screen (b) add a filter (c) post the photo (d) write a caption
20. 20.Which of these is true of a tab bar? (a) goes to the last screen (b) opens a list of pages (c) hides extra links (d) sits at the bottom
21. 21.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Confirm → Pay → Cart → Offers
    Design B: Home → Shop → Pay → Search → Results → Offers → Item (a) Design A (b) Design B
22. 22.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Item → Pens → Cart → Confirm
    Design B: Home → Search → Confirm
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 12 px
    Label: 21 px
    Hint: 28 px (a) Menu (b) Hint (c) Label
24. 24.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) a dead end (c) the same screen (d) a clear next step
25. 25.🖼️ In this wireframe (top to bottom), what is right above the top bar?
    [ tab bar ]
    [ big picture ]
    [ top bar ]
    [ title text ]
    [ list of items ]
    [ menu icon ] (a) menu icon (b) list of items (c) big picture (d) title text
26. 26.Which of these is about UI (the look)? (a) whether users get lost (b) how many taps it takes (c) the button colours (d) how users feel after
27. 27.🎨 Is this about UI or UX: the theme colours? (a) UI (b) UX
28. 28.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) on the phone (b) in the cloud
29. 29.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
30. 30.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Cart → Search → Results → Shop → Pens → Confirm
    Design B: Home → Results → Address → Item → Confirm → Shop
31. 31.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
32. 32.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
33. 33.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Menu → Confirm → Search → Shop
    Design B: Home → Shop → Menu → Confirm → Results → Pay → Offers
34. 34.💾 What does this code show? (Positions start at 0.)
    let friends = ["Riya", "Kabir", "Meera", "Aman", "Zoya"];
    show(friends[1]); (a) Kabir (b) Aman (c) Riya (d) Meera
35. 35.True or false: a clear word like Save is poor button design. (a) False (b) True
36. 36.🔢 In a quiz-app flow, which comes LAST? (a) see the final score (b) read a question (c) see if it is right (d) tap “Start quiz”
37. 37.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Item → Shop → Cart → Pens → Address → Menu
    Design B: Home → Menu → Results → Shop → Pens → Cart
38. 38.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
39. 39.💾 Saving data in the cloud lets you ___. (a) never need a password (b) use it on any device (c) skip the internet (d) shrink the app
40. 40.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone

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