App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 386 · 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.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
2. 2.💾 What does this code show? (Positions start at 0.)
   let friends = ["Meera", "Arjun", "Riya"];
   show(friends[1]); (a) Riya (b) Meera (c) Arjun
3. 3.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Next button: 64 px tall
   Back button: 56 px tall
   Cancel button: 36 px tall (a) Cancel (b) Back (c) Next
4. 4.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
5. 5.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) captions on videos (d) fast-flashing lights
6. 6.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
7. 7.🔘 Our rule: buttons are at least 48 px tall. The Done button is 40 px tall. How many px taller must it be?
8. 8.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
9. 9.Which of these is true of a final design? (a) shows where things go (b) uses the final pictures (c) has no real colours (d) is a quick sketch
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 22 px
    Label: 19 px
    Menu: 23 px
11. 11.Which of these is about UI (the look)? (a) the font size (b) whether users get lost (c) how users feel after (d) how many taps it takes
12. 12.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “read a question”? (a) tap “Start quiz” (b) read a question
13. 13.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
14. 14.Which of these is true of the back button? (a) shows 3 to 5 icons (b) sits at the bottom (c) undoes one move (d) opens a list of pages
15. 15.True or false: grey text on grey is poor button design. (a) True (b) False
16. 16.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ big picture ]
    [ filter buttons ]
    [ search box ]
    [ title text ]
    [ menu icon ]
    [ tab bar ] (a) search box (b) tab bar (c) filter buttons (d) menu icon
17. 17.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
18. 18.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ big picture ]
    [ top bar ]
    [ search box ]
    [ Add button ] (a) top bar (b) big picture (c) search box (d) Add button
19. 19.Which of these is true of a final design? (a) shows where things go (b) uses plain grey boxes (c) is a quick sketch (d) has the real colours
20. 20.💾 What is a variable? (a) a phone setting (b) a named box for a value (c) a type of screen (d) a picture
21. 21.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
22. 22.Which of these is true of a menu button? (a) switches main sections (b) undoes one move (c) opens a list of pages (d) shows 3 to 5 icons
23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Profile tab
    3. open “Help page”
    4. open “Help page”
    Which screen are you on now? (a) Help page (b) Profile (c) Home (d) Search
24. 24.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ big picture ]
    [ list of items ]
    [ filter buttons ]
    [ top bar ]
25. 25.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 64 px tall
    Back button: 60 px tall
    Send button: 32 px tall
26. 26.True or false: the icon shapes is about UX (the experience). (a) False (b) True
27. 27.True or false: a tiny 20 px button is good button design. (a) True (b) False
28. 28.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Search → Address → Size → Results
    Design B: Home → Search → Size → Pay → Pens → Offers → Item
29. 29.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
30. 30.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ Add button ]
    [ title text ]
    [ tab bar ]
    [ big picture ] (a) tab bar (b) big picture (c) Add button
31. 31.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
32. 32.🎨 A beautiful app that confuses everyone has ___. (a) no UI at all (b) perfect UX (c) good UI but poor UX (d) good UX but poor UI
33. 33.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
34. 34.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
35. 35.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Offers → Address → Search → Size
    Design B: Home → Menu → Pay → Item → Size (a) Design A (b) Design B
36. 36.🔢 In a sign-up flow, which comes first: “make a password” or “open the app”? (a) make a password (b) open the app
37. 37.🔘 Our rule: buttons are at least 48 px tall. The Send button is 24 px tall. How many px taller must it be?
38. 38.🔀 A screen with no way forward or back is called a ___. (a) dead end (b) tab bar (c) shortcut (d) home screen
39. 39.Which of these fits saving in the cloud? (a) photos on two devices (b) notes to read offline (c) the sound on/off setting (d) your last game level
40. 40.🔀 What is a user flow? (a) a charging cable (b) a colour theme (c) the path through screens (d) a type of font

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