App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 348 · 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.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
2. 2.Which of these fits saving in the cloud? (a) your last game level (b) a class leaderboard (c) notes to read offline (d) a draft you are typing
3. 3.🔢 In a photo-post flow, which comes first: “add a filter” or “write a caption”? (a) add a filter (b) write a caption
4. 4.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Pay → Search → Confirm → Shop → Pens
   Design B: Home → Address → Item → Results → Pay → Pens → Confirm
5. 5.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
6. 6.🧭 Why should every screen show where you are? (a) to use more battery (b) to look busy (c) so users do not get lost (d) to hide the menu
7. 7.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
8. 8.Which colour pair is hard to read? (a) black on yellow (b) white on black (c) red on green (d) black on pale grey
9. 9.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
10. 10.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 36 px tall
    Done button: 60 px tall
    Start button: 56 px tall
    Help button: 36 px tall
11. 11.💾 What does this code show? (Positions start at 0.)
    let friends = ["Kabir", "Riya", "Aman", "Arjun"];
    show(friends[1]); (a) Arjun (b) Aman (c) Riya (d) Kabir
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Footer: 11 px
    Caption: 23 px
    Title: 13 px
13. 13.💾 What does this code show? (Positions start at 0.)
    let friends = ["Riya", "Aman", "Meera", "Arjun"];
    show(friends[2]); (a) Aman (b) Riya (c) Arjun (d) Meera
14. 14.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
15. 15.🔢 In a food-order flow, which comes first: “pay for the order” or “pick a dish”? (a) pay for the order (b) pick a dish
16. 16.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
17. 17.💾 What number does this code show?
    let songs = ["Kites", "Ocean", "Sunrise"];
    songs.push("Stars");
    songs.push("Rain");
    show(songs.length);
18. 18.Which colour pair is easy to read? (a) red on green (b) light grey on white (c) white on black (d) dark blue on black
19. 19.Which of these is true of a final design? (a) shows where things go (b) has no real colours (c) uses plain grey boxes (d) has the real colours
20. 20.🖼️ In this wireframe (top to bottom), what is right below the menu icon?
    [ menu icon ]
    [ filter buttons ]
    [ tab bar ]
    [ Add button ]
    [ list of items ] (a) filter buttons (b) Add button (c) tab bar (d) list of items
21. 21.🔀 What is a user flow? (a) a type of font (b) the path through screens (c) a colour theme (d) a charging cable
22. 22.True or false: buttons almost touching is poor button design. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) the theme colours (b) the icon shapes (c) the button colours (d) how fast a task is done
24. 24.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ title text ]
    [ search box ]
    [ menu icon ]
    [ top bar ]
    [ Add button ]
    [ tab bar ] (a) top bar (b) tab bar (c) Add button (d) menu icon
25. 25.💾 What does this code show? (Positions start at 0.)
    let notes = ["Hindi", "Art", "Science", "Sports", "Music"];
    show(notes[4]); (a) Art (b) Science (c) Hindi (d) Music
26. 26.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
27. 27.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) shows where things go (d) uses the final pictures
28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Feed tab
    3. open “Edit photo”
    Which screen are you on now? (a) Chat (b) Match report (c) Feed (d) Edit photo
29. 29.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone
30. 30.Which of these is true of a tab bar? (a) undoes one move (b) opens a list of pages (c) switches main sections (d) hides extra links
31. 31.Which of these is about UI (the look)? (a) whether users get lost (b) how many taps it takes (c) the font size (d) how easy sign-up is
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Caption: 10 px
    Label: 14 px
33. 33.💾 What number does this code show?
    let friends = ["Riya", "Meera", "Zoya"];
    friends.push("Arjun");
    show(friends.length);
34. 34.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
35. 35.🎨 UI stands for user ___. (a) input (b) interface (c) internet (d) idea
36. 36.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
37. 37.🔢 In a photo-post flow, which comes LAST? (a) add a filter (b) write a caption (c) post the photo (d) take the photo
38. 38.🔢 In a food-order flow, what comes right after “pay for the order”? (a) add it to the cart (b) track the order (c) check the cart (d) pick a dish
39. 39.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 32 px tall
    Help button: 68 px tall
    Send button: 60 px tall (a) Send (b) Help (c) Save
40. 40.🌗 Is dark blue on black easy or hard to read on a button? (a) hard to read (b) easy to read

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