App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 986 · 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.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Search tab
   2. open “Match report”
   3. open “Map”
   Which screen are you on now? (a) Home (b) Map (c) Match report (d) Search
2. 2.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
3. 3.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Save button: 44 px tall
   Back button: 60 px tall
   Start button: 64 px tall
4. 4.💾 What is a variable? (a) a named box for a value (b) a phone setting (c) a picture (d) a type of screen
5. 5.🧭 Where is a tab bar usually placed in a phone app? (a) at the bottom (b) in the middle (c) inside a button (d) nowhere
6. 6.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
7. 7.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Offers → Pay → Search → Menu → Results
   Design B: Home → Pens → Results → Item → Offers → Shop → Menu
8. 8.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
9. 9.🔍 Which is the odd one out? (a) how easy sign-up is (b) how fast a task is done (c) the theme colours (d) whether users get lost
10. 10.Which of these fits saving on the phone? (a) notes to read offline (b) a shared to-do list (c) photos on two devices (d) chat messages to friends
11. 11.True or false: a wireframe uses plain grey boxes. (a) False (b) True
12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap Back
    3. tap the Lessons tab
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
13. 13.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
14. 14.Which colour pair is hard to read? (a) black on pale grey (b) dark blue on white (c) white on black (d) red on green
15. 15.🖼️ In this wireframe (top to bottom), what is right above the title text?
    [ menu icon ]
    [ title text ]
    [ top bar ]
    [ search box ]
    [ tab bar ]
    [ list of items ] (a) tab bar (b) top bar (c) menu icon (d) list of items
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Menu → Confirm → Shop
    Design B: Home → Address → Offers → Shop → Confirm
17. 17.🧭 Which part of navigation undoes one move? (a) a menu button (b) a tab bar (c) the back button
18. 18.🔍 Which is the odd one out? (a) the icon shapes (b) the font size (c) how easy sign-up is (d) the theme colours
19. 19.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
20. 20.🔀 What is a user flow? (a) the path through screens (b) a colour theme (c) a type of font (d) a charging cable
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Title: 11 px
    Hint: 22 px
22. 22.💾 pop() takes off the last item. What does this code show?
    let notes = ["Maths", "Science", "Sports"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Sports (c) Science
23. 23.🧭 Which part of navigation switches main sections? (a) a menu button (b) a tab bar (c) the back button
24. 24.💾 pop() takes off the last item. What does this code show?
    let songs = ["Rain", "Stars", "Sunrise"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Sunrise (b) Stars (c) Rain
25. 25.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
26. 26.Which of these makes the app harder to use? (a) captions on videos (b) sudden loud sounds (c) strong colour contrast (d) text that can grow
27. 27.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ Save button ]
    [ top bar ]
    [ filter buttons ]
    [ menu icon ]
28. 28.Which of these is about UI (the look)? (a) the font size (b) how fast a task is done (c) how many taps it takes (d) whether users get lost
29. 29.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ Save button ]
    [ Add button ]
    [ tab bar ]
30. 30.True or false: grey text on grey is good button design. (a) True (b) False
31. 31.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Settings tab
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
32. 32.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 72 px tall
    Back button: 72 px tall
    Help button: 32 px tall (a) Next (b) Help (c) Back
33. 33.Which of these is about UX (the experience)? (a) how fast a task is done (b) the button colours (c) the screen layout (d) the icon shapes
34. 34.Which of these is true of a menu button? (a) undoes one move (b) switches main sections (c) opens a list of pages (d) goes to the last screen
35. 35.💾 What does this code show? (Positions start at 0.)
    let songs = ["Rain", "Ocean", "Sunrise"];
    show(songs[0]); (a) Ocean (b) Sunrise (c) Rain
36. 36.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) type name and email (b) open the app (c) make a password (d) see the home screen
37. 37.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Cart
    Design B: Home → Pay → Offers → Menu
38. 38.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
39. 39.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
40. 40.🔢 In a sign-up flow, which comes first: “make a password” or “open the app”? (a) open the app (b) make a password

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