App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 233 · 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 a photo-post flow, which comes first: “add a filter” or “write a caption”? (a) write a caption (b) add a filter
2. 2.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Save button: 32 px tall
   Next button: 40 px tall
   Done button: 48 px tall
   Cancel button: 48 px tall
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 20 px
   Label: 9 px
   Hint: 22 px (a) Body text (b) Hint (c) Label
4. 4.Which of these fits saving in the cloud? (a) a draft you are typing (b) your last game level (c) notes to read offline (d) chat messages to friends
5. 5.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
6. 6.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
7. 7.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Save button: 44 px tall
   Back button: 40 px tall
   Send button: 40 px tall
   Start button: 32 px tall
8. 8.True or false: space between buttons is poor button design. (a) True (b) False
9. 9.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
10. 10.♿ What does a screen reader do? (a) takes photos (b) plays music (c) reads the screen aloud (d) makes text tiny
11. 11.True or false: a wireframe shows the real fonts. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) how fast a task is done (b) whether users get lost (c) the icon shapes (d) how users feel after
13. 13.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) uses the final pictures (d) uses plain grey boxes
14. 14.💾 pop() takes off the last item. What does this code show?
    let notes = ["Art", "Hindi", "Maths", "Music"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Art (b) Maths (c) Music (d) Hindi
15. 15.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
16. 16.Which of these is true of a wireframe? (a) shows the real fonts (b) looks like the real app (c) uses the final pictures (d) has no real colours
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Hint: 17 px
    Body text: 24 px
    Label: 21 px
18. 18.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Badges”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
19. 19.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 40 px tall
    Send button: 36 px tall
    Next button: 52 px tall
20. 20.🔢 In a sign-up flow, which comes first: “open the app” or “tap “Sign up””? (a) open the app (b) tap “Sign up”
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 22 px
    Menu: 16 px
    Footer: 24 px
    Body text: 22 px
22. 22.🔢 In a food-order flow, which comes FIRST? (a) open the menu (b) pay for the order (c) add it to the cart (d) pick a dish
23. 23.True or false: the sound on/off setting fits saving in the cloud. (a) True (b) False
24. 24.Which of these fits saving in the cloud? (a) notes to read offline (b) your last game level (c) a shared to-do list (d) the sound on/off setting
25. 25.True or false: a wireframe has no real colours. (a) False (b) True
26. 26.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 52 px tall
    Save button: 64 px tall
    Start button: 32 px tall
    Help button: 44 px tall
27. 27.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Lessons tab
    3. open “Edit photo”
    Which screen are you on now? (a) Lessons (b) Quiz (c) Edit photo (d) Me
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.🔢 In a quiz-app flow, which comes first: “pick an answer” or “read a question”? (a) pick an answer (b) read a question
31. 31.Which colour pair is hard to read? (a) dark blue on white (b) black on yellow (c) dark blue on black (d) black on pale grey
32. 32.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Address → Pay
    Design B: Home → Menu → Pay → Cart → Results → Item → Shop
33. 33.🔘 Our rule: buttons are at least 48 px tall. The Save button is 20 px tall. How many px taller must it be?
34. 34.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
35. 35.🔢 In a quiz-app flow, which comes first: “read a question” or “see the final score”? (a) see the final score (b) read a question
36. 36.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
37. 37.Which of these is true of a final design? (a) has no real colours (b) is a quick sketch (c) shows where things go (d) has the real colours
38. 38.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Search
    Design B: Home → Shop → Pens → Search (a) Design B (b) Design A
39. 39.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) in the cloud (b) on the phone
40. 40.Which of these is about UX (the experience)? (a) the button colours (b) the icon shapes (c) the font size (d) whether users get lost

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