App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 970 · 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.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ menu icon ]
   [ filter buttons ]
   [ Add button ]
   [ title text ]
   [ tab bar ] (a) menu icon (b) filter buttons (c) tab bar (d) title text
2. 2.Which colour pair is easy to read? (a) red on green (b) dark blue on black (c) light grey on white (d) white on dark green
3. 3.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Shop → Pens → Menu → Confirm
   Design B: Home → Pay → Item → Address → Confirm → Menu → Cart
4. 4.🔘 Our rule: buttons are at least 48 px tall. The Help button is 20 px tall. How many px taller must it be?
5. 5.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Badges”
   2. tap the Profile tab
   3. open “Friend list”
   4. tap the Search tab
   5. open “Edit photo”
   How many times must you tap Back to reach the main screen of this tab?
6. 6.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Cancel button: 60 px tall
   Back button: 40 px tall
   Next button: 60 px tall
   Done button: 68 px tall (a) Next (b) Done (c) Cancel (d) Back
7. 7.💾 What does this code show? (Positions start at 0.)
   let friends = ["Riya", "Aman", "Zoya", "Meera"];
   show(friends[0]); (a) Riya (b) Zoya (c) Meera (d) Aman
8. 8.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) inside a button (c) in the middle (d) at the bottom
9. 9.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Edit photo”
   2. tap Back
   3. tap the Profile tab
   Which screen are you on now? (a) Home (b) Edit photo (c) Profile (d) Search
10. 10.Which colour pair is hard to read? (a) black on pale grey (b) black on yellow (c) white on black (d) pale pink on white
11. 11.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
12. 12.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) read a question (b) see the final score (c) see if it is right (d) tap “Start quiz”
13. 13.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ search box ]
    [ list of items ]
    [ Add button ]
    [ menu icon ]
    [ big picture ] (a) Add button (b) list of items (c) menu icon (d) search box
14. 14.🔍 Which is the odd one out? (a) how fast a task is done (b) how easy sign-up is (c) whether users get lost (d) the icon shapes
15. 15.💾 What number does this code show?
    let friends = ["Zoya", "Meera"];
    friends.push("Riya");
    show(friends.length);
16. 16.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 44 px tall
    Cancel button: 72 px tall
    Next button: 52 px tall (a) Next (b) Cancel (c) Back
17. 17.Which colour pair is easy to read? (a) light grey on white (b) yellow on white (c) red on green (d) white on black
18. 18.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 56 px tall
    Start button: 64 px tall
    Send button: 52 px tall
19. 19.🔢 In a food-order flow, which comes FIRST? (a) pay for the order (b) pick a dish (c) check the cart (d) open the menu
20. 20.🌗 Is dark blue on white easy or hard to read on a button? (a) easy to read (b) hard to read
21. 21.🔢 In a photo-post flow, which comes FIRST? (a) add a filter (b) open the camera screen (c) write a caption (d) take the photo
22. 22.Which colour pair is hard to read? (a) dark blue on white (b) light grey on white (c) white on black (d) black on pale grey
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 12 px
    Title: 10 px
    Footer: 10 px
24. 24.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Size
    Design B: Home → Menu → Search → Item → Pens (a) Design B (b) Design A
25. 25.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) in the cloud (b) on the phone
26. 26.Which of these is about UI (the look)? (a) the font size (b) how fast a task is done (c) how easy sign-up is (d) whether users get lost
27. 27.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ list of items ]
    [ top bar ]
    [ search box ]
    [ Add button ]
    [ filter buttons ] (a) Add button (b) filter buttons (c) search box (d) list of items
28. 28.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) sudden loud sounds (d) icons with no labels
29. 29.✏️ A box with a cross in a wireframe usually means ___. (a) a closed app (b) an error (c) a picture goes here (d) delete this
30. 30.🧭 What does the back button usually do? (a) closes all apps (b) deletes the page (c) opens settings (d) goes to the last screen
31. 31.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Friend list”
    3. open “Match report”
    4. tap Back
    Which screen are you on now? (a) Feed (b) Edit photo (c) Friend list (d) Match report
32. 32.💾 What number does this code show?
    let notes = ["Hindi", "Art", "Sports", "Music"];
    notes.push("Maths");
    show(notes.length);
33. 33.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) a dead end (c) a random page (d) the same screen
34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap Back
    3. open “Score card”
    4. tap Back
    5. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
35. 35.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ menu icon ]
    [ Add button ]
    [ Save button ]
    [ tab bar ] (a) menu icon (b) tab bar (c) Add button
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Menu: 24 px
    Label: 14 px
    Title: 24 px
    Caption: 21 px (a) Menu (b) Label (c) Body text (d) Title
37. 37.True or false: how easy sign-up is is about UX (the experience). (a) True (b) False
38. 38.Which of these is true of a final design? (a) is a quick sketch (b) shows where things go (c) looks like the real app (d) uses plain grey boxes
39. 39.🔍 Which is the odd one out? (a) how easy sign-up is (b) how fast a task is done (c) how users feel after (d) the button colours
40. 40.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Menu
    Design B: Home → Pay → Shop → Item → Size

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