App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 99 · 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.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Back button: 36 px tall
   Cancel button: 48 px tall
   Send button: 52 px tall
   Start button: 52 px tall (a) Cancel (b) Back (c) Send (d) Start
2. 2.True or false: a final design has the real colours. (a) True (b) False
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 21 px
   Label: 19 px
   Body text: 24 px
   Caption: 24 px
   Title: 9 px (a) Footer (b) Title (c) Label (d) Body text
4. 4.True or false: how many taps it takes is about UI (the look). (a) False (b) True
5. 5.Which of these is about UX (the experience)? (a) how many taps it takes (b) the font size (c) the button colours (d) the screen layout
6. 6.🔢 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
7. 7.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
8. 8.True or false: a clear word like Save is poor button design. (a) False (b) True
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
10. 10.🧭 Tapping a tab usually takes you to ___. (a) the phone settings (b) the last app used (c) a random page (d) that tab’s main screen
11. 11.✏️ What is a wireframe? (a) a type of password (b) the finished app (c) a simple screen sketch (d) a charging cable
12. 12.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Menu → Address → Search → Confirm → Item
    Design B: Home → Shop → Results → Offers
13. 13.Which of these fits saving in the cloud? (a) chat messages to friends (b) your last game level (c) notes to read offline (d) a draft you are typing
14. 14.True or false: a class leaderboard fits saving in the cloud. (a) False (b) True
15. 15.🔢 In a photo-post flow, which comes first: “write a caption” or “add a filter”? (a) write a caption (b) add a filter
16. 16.🔘 Our rule: buttons are at least 48 px tall. The Done button is 24 px tall. How many px taller must it be?
17. 17.Which of these is true of a final design? (a) uses plain grey boxes (b) is a quick sketch (c) has no real colours (d) has the real colours
18. 18.True or false: a draft you are typing fits saving on the phone. (a) False (b) True
19. 19.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
20. 20.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ title text ]
    [ filter buttons ]
    [ search box ]
    [ tab bar ] (a) list of items (b) tab bar (c) search box (d) filter buttons
21. 21.Which of these is about UX (the experience)? (a) how easy sign-up is (b) the icon shapes (c) the font size (d) the button colours
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 21 px
    Title: 12 px
    Caption: 23 px
    Footer: 21 px
23. 23.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Menu → Item
    Design B: Home → Address → Search → Results → Pens → Size
24. 24.Which of these fits saving on the phone? (a) chat messages to friends (b) photos on two devices (c) your last game level (d) a shared to-do list
25. 25.🔢 In a photo-post flow, what comes right after “add a filter”? (a) open the camera screen (b) write a caption (c) take the photo (d) post the photo
26. 26.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Size → Offers → Cart
    Design B: Home → Confirm → Pay (a) Design B (b) Design A
27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Score card”
    3. open “Video”
    4. open “Help page”
    Which screen are you on now? (a) Match report (b) Score card (c) Help page (d) Video
28. 28.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
29. 29.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
30. 30.🔢 In a food-order flow, which comes first: “pay for the order” or “check the cart”? (a) pay for the order (b) check the cart
31. 31.🔢 In a quiz-app flow, which comes first: “see the final score” or “read a question”? (a) read a question (b) see the final score
32. 32.🔢 In a sign-up flow, which comes LAST? (a) make a password (b) open the app (c) type name and email (d) see the home screen
33. 33.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Edit photo”
    3. open “Edit photo”
    4. tap the Chat tab
    5. open “Map”
    Which screen are you on now? (a) Edit photo (b) Map (c) Feed (d) Chat
34. 34.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) shortcut (c) dead end (d) tab bar
35. 35.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
36. 36.🌗 Is dark blue on black easy or hard to read on a button? (a) easy to read (b) hard to read
37. 37.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. open “Video”
    3. tap the Feed tab
    4. open “Badges”
    5. open “Help page”
    Which screen are you on now? (a) Badges (b) Video (c) Help page (d) Feed
39. 39.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) icons with no labels (d) labels on every icon
40. 40.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) tap “Start quiz” (b) see if it is right (c) read a question (d) see the final score

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