App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 64 · 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 Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Lessons tab
   2. open “Friend list”
   3. tap Back
   4. open “Help page”
   5. open “Help page”
   Which screen are you on now? (a) Lessons (b) Help page (c) Friend list (d) Quiz
2. 2.🎨 Is this about UI or UX: the icon shapes? (a) UX (b) UI
3. 3.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it runs the app (c) it saves data (d) it adds colours
4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Edit photo”
   2. tap Back
   3. open “Match report”
   How many times must you tap Back to reach the main screen of this tab?
5. 5.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) tap “Sign up” (b) type name and email (c) make a password (d) see the home screen
6. 6.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
7. 7.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Address → Menu
   Design B: Home → Pay → Cart → Confirm → Offers → Address → Menu
8. 8.🔢 In a quiz-app flow, which comes first: “see if it is right” or “pick an answer”? (a) pick an answer (b) see if it is right
9. 9.True or false: a wireframe looks like the real app. (a) True (b) False
10. 10.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a wireframe (b) a final design
11. 11.💾 What is a variable? (a) a picture (b) a type of screen (c) a named box for a value (d) a phone setting
12. 12.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Shop → Search → Confirm → Address
    Design B: Home → Item → Menu
13. 13.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Menu → Address → Shop → Results
    Design B: Home → Confirm → Item
14. 14.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ menu icon ]
    [ big picture ]
    [ list of items ]
    [ top bar ] (a) menu icon (b) top bar (c) list of items (d) big picture
15. 15.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 40 px tall
    Back button: 40 px tall
    Done button: 44 px tall
    Help button: 64 px tall
16. 16.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) text that can grow (d) strong colour contrast
17. 17.Which of these is true of the back button? (a) opens a list of pages (b) goes to the last screen (c) shows 3 to 5 icons (d) hides extra links
18. 18.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Home tab
    3. open “Map”
    4. tap the Search tab
    5. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
20. 20.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) tab bar (c) dead end (d) shortcut
21. 21.💾 pop() takes off the last item. What does this code show?
    let notes = ["Hindi", "Art", "Science"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Hindi (b) Science (c) Art
22. 22.🎨 UI stands for user ___. (a) idea (b) input (c) internet (d) interface
23. 23.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
24. 24.🎨 Who should you test the UX with? (a) nobody (b) only yourself (c) the app icon (d) real users
25. 25.🔘 Our rule: buttons are at least 48 px tall. The Save button is 24 px tall. How many px taller must it be?
26. 26.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Pay → Menu → Results → Pens → Shop
    Design B: Home → Pens → Menu
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Label: 22 px
    Body text: 18 px
28. 28.🔘 Our rule: buttons are at least 48 px tall. The Done button is 40 px tall. How many px taller must it be?
29. 29.🌗 Is dark blue on white easy or hard to read on a button? (a) easy to read (b) hard to read
30. 30.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ filter buttons ]
    [ big picture ]
    [ tab bar ]
31. 31.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
32. 32.True or false: strong colour contrast is good button design. (a) False (b) True
33. 33.True or false: a final design shows where things go. (a) True (b) False
34. 34.🔘 Our rule: buttons are at least 48 px tall. The Done button is 44 px tall. How many px taller must it be?
35. 35.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 40 px tall
    Start button: 60 px tall
    Next button: 48 px tall (a) Start (b) Next (c) Done
36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. open “Score card”
    4. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
37. 37.🔢 In a quiz-app flow, which comes first: “see if it is right” or “tap “Start quiz””? (a) tap “Start quiz” (b) see if it is right
38. 38.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) strong colour contrast (d) text that can grow
39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Settings tab
    3. open “Map”
    Which screen are you on now? (a) Chat (b) Feed (c) Settings (d) Map
40. 40.🌗 Is black on pale grey easy or hard to read on a button? (a) hard to read (b) easy to read

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