App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 667 · 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 sign-up flow, which comes first: “type name and email” or “enter the code sent”? (a) type name and email (b) enter the code sent
2. 2.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Next button: 64 px tall
   Save button: 24 px tall
   Start button: 60 px tall (a) Next (b) Start (c) Save
3. 3.🔀 What is a user flow? (a) a type of font (b) a colour theme (c) a charging cable (d) the path through screens
4. 4.True or false: how easy sign-up is is about UI (the look). (a) False (b) True
5. 5.🔘 Our rule: buttons are at least 48 px tall. The Save button is 44 px tall. How many px taller must it be?
6. 6.True or false: the sound on/off setting fits saving in the cloud. (a) False (b) True
7. 7.Which colour pair is easy to read? (a) white on dark green (b) dark blue on black (c) pale pink on white (d) red on green
8. 8.Which of these is true of a final design? (a) has no real colours (b) is a quick sketch (c) uses plain grey boxes (d) looks like the real app
9. 9.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
10. 10.🧭 Which part of navigation switches main sections? (a) a tab bar (b) the back button (c) a menu button
11. 11.🔍 Which is the odd one out? (a) the screen layout (b) how many taps it takes (c) the font size (d) the icon shapes
12. 12.True or false: a shared to-do list fits saving on the phone. (a) False (b) True
13. 13.🔢 In a photo-post flow, which comes LAST? (a) take the photo (b) write a caption (c) open the camera screen (d) post the photo
14. 14.Which of these is true of a tab bar? (a) undoes one move (b) switches main sections (c) hides extra links (d) goes to the last screen
15. 15.🧭 Which part of navigation hides extra links? (a) the back button (b) a tab bar (c) a menu button
16. 16.🔢 In a sign-up flow, which comes FIRST? (a) tap “Sign up” (b) type name and email (c) make a password (d) open the app
17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Lessons tab
    3. open “Map”
    Which screen are you on now? (a) Lessons (b) Me (c) Map (d) Quiz
18. 18.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
19. 19.🔢 In a sign-up flow, which comes LAST? (a) type name and email (b) open the app (c) see the home screen (d) make a password
20. 20.True or false: how many taps it takes is about UI (the look). (a) True (b) False
21. 21.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
22. 22.💾 Which works with no internet at all? (a) a shared chat (b) a cloud leaderboard (c) a cloud backup (d) data saved on the phone
23. 23.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) read a question (b) tap “Start quiz” (c) see the final score (d) see if it is right
24. 24.True or false: a final design is a quick sketch. (a) True (b) False
25. 25.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) good UX but poor UI (c) no UI at all (d) good UI but poor UX
26. 26.Which colour pair is hard to read? (a) white on black (b) dark blue on white (c) black on yellow (d) light grey on white
27. 27.🧭 Which part of navigation opens a list of pages? (a) the back button (b) a menu button (c) a tab bar
28. 28.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) captions on videos (d) labels on every icon
29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Help page”
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
30. 30.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ list of items ]
    [ Save button ]
    [ Add button ]
    [ big picture ]
    [ top bar ]
    [ tab bar ] (a) Add button (b) big picture (c) Save button (d) top bar
31. 31.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
32. 32.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
33. 33.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
34. 34.💾 pop() takes off the last item. What does this code show?
    let notes = ["Sports", "Maths", "Science"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Sports (c) Science
35. 35.Which of these is about UI (the look)? (a) how many taps it takes (b) how fast a task is done (c) how easy sign-up is (d) the font size
36. 36.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
37. 37.True or false: a wireframe has no real colours. (a) False (b) True
38. 38.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
39. 39.🔢 In a food-order flow, which comes first: “pick a dish” or “open the menu”? (a) pick a dish (b) open the menu
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 21 px
    Footer: 22 px
    Body text: 23 px
    Hint: 10 px
    Label: 17 px

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