App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 695 · 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 Quiz tab
   2. open “Help page”
   3. tap the Me tab
   4. tap the Quiz tab
   5. tap the Lessons tab
   How many times must you tap Back to reach the main screen of this tab?
2. 2.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
3. 3.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Results → Search → Cart → Menu
   Design B: Home → Shop → Menu → Offers (a) Design B (b) Design A
4. 4.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) no UI at all (c) good UI but poor UX (d) good UX but poor UI
5. 5.💾 What does this code show? (Positions start at 0.)
   let songs = ["Rain", "Kites", "Monsoon", "Stars"];
   show(songs[0]); (a) Kites (b) Stars (c) Rain (d) Monsoon
6. 6.True or false: a final design uses the final pictures. (a) True (b) False
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 24 px
   Footer: 16 px
   Hint: 14 px
   Body text: 20 px
8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Help page”
   2. open “Score card”
   3. open “Score card”
   How many times must you tap Back to reach the main screen of this tab?
9. 9.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
10. 10.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read
11. 11.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. open “Score card”
    3. tap Back
    4. open “Help page”
    5. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
12. 12.💾 What number does this code show?
    let notes = ["Science", "Maths", "Music", "Sports"];
    notes.push("Art");
    show(notes.length);
13. 13.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 24 px tall. How many px taller must it be?
14. 14.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
15. 15.💾 What does this code show? (Positions start at 0.)
    let friends = ["Riya", "Aman", "Meera", "Arjun"];
    show(friends[0]); (a) Aman (b) Arjun (c) Meera (d) Riya
16. 16.Which of these is about UI (the look)? (a) how fast a task is done (b) how many taps it takes (c) how easy sign-up is (d) the font size
17. 17.🔢 In a quiz-app flow, which comes first: “pick an answer” or “see if it is right”? (a) pick an answer (b) see if it is right
18. 18.🔍 Which is the odd one out? (a) the font size (b) the icon shapes (c) the button colours (d) how users feel after
19. 19.True or false: space between buttons is good button design. (a) False (b) True
20. 20.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
21. 21.Which of these fits saving on the phone? (a) a shared to-do list (b) a class leaderboard (c) photos on two devices (d) your last game level
22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Badges”
    3. tap the Search tab
    4. open “Video”
    Which screen are you on now? (a) Badges (b) Video (c) Search (d) Home
23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Edit photo”
    3. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?
24. 24.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Results → Search → Shop
    Design B: Home → Size → Pay → Pens → Results
25. 25.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) write a caption (b) add a filter (c) take the photo (d) post the photo
26. 26.💾 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
27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap the Settings tab
    3. tap the Chat tab
    4. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
28. 28.🌗 Is dark blue on black easy or hard to read on a button? (a) hard to read (b) easy to read
29. 29.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
30. 30.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) pick an answer (b) see the final score (c) tap “Start quiz” (d) read a question
31. 31.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe
32. 32.True or false: notes to read offline fits saving on the phone. (a) True (b) False
33. 33.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
34. 34.Which of these makes the app harder to use? (a) fast-flashing lights (b) text that can grow (c) big touch targets (d) labels on every icon
35. 35.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “type name and email”? (a) tap “Sign up” (b) type name and email
36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Home tab
    3. open “Map”
    4. tap Back
    5. tap the Search tab
    Which screen are you on now? (a) Home (b) Friend list (c) Search (d) Map
37. 37.✏️ What is the easiest way to draw a first wireframe? (a) a 3D printer (b) a microphone (c) a phone case (d) pencil and paper
38. 38.Which of these is true of a final design? (a) uses plain grey boxes (b) is a quick sketch (c) has the real colours (d) shows where things go
39. 39.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) labels on every icon (d) text that can grow
40. 40.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud

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