App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 918 · 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.Which of these is true of the back button? (a) sits at the bottom (b) switches main sections (c) hides extra links (d) undoes one move
2. 2.🖼️ How many parts (boxes) does this wireframe have?
   [ tab bar ]
   [ list of items ]
   [ big picture ]
   [ top bar ]
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 10 px
   Title: 12 px
   Menu: 24 px
   Label: 14 px
4. 4.🎨 Is this about UI or UX: the screen layout? (a) UX (b) UI
5. 5.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) strong colour contrast
6. 6.💾 What number does this code show?
   let lives = 6;
   lives = lives - 1;
   lives = lives + 4;
   show(lives);
7. 7.Which colour pair is hard to read? (a) dark blue on white (b) black on yellow (c) white on black (d) yellow on white
8. 8.🔢 In a quiz-app flow, which comes first: “read a question” or “tap “Start quiz””? (a) tap “Start quiz” (b) read a question
9. 9.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) only the coder (d) nobody
10. 10.🔍 Which is the odd one out? (a) the button colours (b) how easy sign-up is (c) how fast a task is done (d) how users feel after
11. 11.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
12. 12.True or false: chat messages to friends fits saving in the cloud. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) the font size (b) whether users get lost (c) the button colours (d) the theme colours
14. 14.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ title text ]
    [ tab bar ]
    [ list of items ]
    [ filter buttons ]
15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Map”
    3. open “Edit photo”
    4. open “Video”
    5. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
16. 16.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
    [ tab bar ]
    [ top bar ]
    [ menu icon ]
    [ big picture ] (a) tab bar (b) top bar (c) big picture
17. 17.💾 pop() takes off the last item. What does this code show?
    let songs = ["Sunrise", "Monsoon", "Stars", "Kites"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Sunrise (b) Monsoon (c) Kites (d) Stars
18. 18.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
19. 19.🧭 Which part of navigation hides extra links? (a) the back button (b) a menu button (c) a tab bar
20. 20.Which of these is true of a wireframe? (a) has the real colours (b) is a quick sketch (c) uses the final pictures (d) shows the real fonts
21. 21.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
22. 22.🔍 Which is the odd one out? (a) how many taps it takes (b) the theme colours (c) how easy sign-up is (d) whether users get lost
23. 23.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Caption: 23 px
    Title: 18 px
    Footer: 17 px
25. 25.Which of these is true of a wireframe? (a) looks like the real app (b) shows the real fonts (c) has no real colours (d) has the real colours
26. 26.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
27. 27.🔢 In a quiz-app flow, which comes LAST? (a) tap “Start quiz” (b) pick an answer (c) see if it is right (d) see the final score
28. 28.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 60 px tall
    Help button: 64 px tall
    Done button: 60 px tall
    Next button: 32 px tall
29. 29.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
30. 30.🌗 Is yellow on white easy or hard to read on a button? (a) easy to read (b) hard to read
31. 31.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a random page (c) a dead end (d) a clear next step
32. 32.True or false: a final design looks like the real app. (a) False (b) True
33. 33.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Results → Cart
    Design B: Home → Size → Search → Confirm → Address
34. 34.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a menu button (c) a tab bar
35. 35.True or false: a class leaderboard fits saving in the cloud. (a) True (b) False
36. 36.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) see the home screen (b) make a password (c) tap “Sign up” (d) type name and email
37. 37.True or false: a final design uses plain grey boxes. (a) True (b) False
38. 38.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ filter buttons ]
    [ title text ]
    [ search box ]
    [ tab bar ]
    [ menu icon ]
    [ big picture ] (a) tab bar (b) menu icon (c) title text (d) filter buttons
39. 39.True or false: whether users get lost is about UX (the experience). (a) False (b) True
40. 40.🔢 In a photo-post flow, which comes first: “post the photo” or “take the photo”? (a) post the photo (b) take the photo

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