App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 620 · 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.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Address → Menu → Offers → Search → Pay
   Design B: Home → Confirm → Address
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 17 px
   Footer: 18 px
   Body text: 11 px
   Label: 25 px
   Menu: 16 px (a) Footer (b) Label (c) Body text (d) Caption
4. 4.💾 What does this code show? (Positions start at 0.)
   let songs = ["Ocean", "Kites", "Sunrise", "Rain"];
   show(songs[2]); (a) Kites (b) Sunrise (c) Ocean (d) Rain
5. 5.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) text that can grow (d) tiny tap areas
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 18 px
   Caption: 16 px
   Label: 24 px
   Hint: 24 px
   Title: 12 px
7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Friend list”
   2. tap Back
   3. open “Friend list”
   4. open “Friend list”
   Which screen are you on now? (a) Home (b) Profile (c) Search (d) Friend list
8. 8.True or false: buttons almost touching is good button design. (a) True (b) False
9. 9.True or false: how users feel after is about UX (the experience). (a) True (b) False
10. 10.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
11. 11.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) the back button (c) a menu button
12. 12.🔘 Our rule: buttons are at least 48 px tall. The Next button is 32 px tall. How many px taller must it be?
13. 13.True or false: a wireframe has the real colours. (a) True (b) False
14. 14.🔢 In a photo-post flow, what comes right after “take the photo”? (a) post the photo (b) write a caption (c) open the camera screen (d) add a filter
15. 15.Which of these is about UX (the experience)? (a) the screen layout (b) the button colours (c) the theme colours (d) how easy sign-up is
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.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
18. 18.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 32 px tall
    Back button: 64 px tall
    Send button: 36 px tall
19. 19.🧭 Which part of navigation undoes one move? (a) a menu button (b) a tab bar (c) the back button
20. 20.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
21. 21.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Pens → Address → Results → Menu
    Design B: Home → Address → Offers → Size (a) Design B (b) Design A
22. 22.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Save button ]
    [ big picture ]
    [ top bar ]
    [ tab bar ]
    [ menu icon ] (a) top bar (b) tab bar (c) menu icon (d) big picture
23. 23.💾 pop() takes off the last item. What does this code show?
    let friends = ["Aman", "Riya", "Meera", "Kabir", "Arjun"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Riya (b) Aman (c) Meera (d) Kabir
24. 24.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) in the cloud (b) on the phone
25. 25.Which of these is true of a wireframe? (a) has the real colours (b) uses the final pictures (c) shows where things go (d) looks like the real app
26. 26.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) track the order (b) pick a dish (c) check the cart (d) open the menu
27. 27.🧭 What does the back button usually do? (a) opens settings (b) closes all apps (c) goes to the last screen (d) deletes the page
28. 28.🔍 Which is the odd one out? (a) the theme colours (b) how fast a task is done (c) how easy sign-up is (d) how many taps it takes
29. 29.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) on the phone (b) in the cloud
30. 30.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Search → Address → Size → Shop
    Design B: Home → Address → Pens (a) Design A (b) Design B
31. 31.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 60 px tall
    Back button: 40 px tall
    Save button: 32 px tall
    Send button: 60 px tall
32. 32.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Help page”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
34. 34.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 40 px tall
    Start button: 56 px tall
    Cancel button: 44 px tall
    Help button: 44 px tall
35. 35.🔢 In a food-order flow, which comes LAST? (a) track the order (b) pick a dish (c) open the menu (d) add it to the cart
36. 36.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
37. 37.💾 Saving data in the cloud lets you ___. (a) use it on any device (b) shrink the app (c) never need a password (d) skip the internet
38. 38.True or false: a clear word like Save is poor button design. (a) True (b) False
39. 39.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) better UX (c) worse UX (d) more colours
40. 40.🖼️ How many parts (boxes) does this wireframe have?
    [ Add button ]
    [ list of items ]
    [ search box ]
    [ filter buttons ]
    [ menu icon ]
    [ title text ]

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