← Designing apps: Part 2 test lesson New set →

App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 389 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.Which of these is true of a wireframe? (a) looks like the real app (b) has no real colours (c) uses the final pictures (d) has the real colours
  2. 2.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) plays music (d) makes text tiny
  3. 3.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ tab bar ]
    [ top bar ]
    [ search box ]
    [ filter buttons ]     (a) top bar (b) search box (c) tab bar
  4. 4.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
  5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 21 px
    Body text: 13 px
    Caption: 20 px     (a) Caption (b) Body text (c) Title
  6. 6.Which of these is about UI (the look)? (a) how users feel after (b) the button colours (c) whether users get lost (d) how fast a task is done
  7. 7.Which of these is about UI (the look)? (a) how fast a task is done (b) how users feel after (c) the screen layout (d) how many taps it takes
  8. 8.🔘 Our rule: buttons are at least 48 px tall. The Start button is 32 px tall. How many px taller must it be?
  9. 9.🎨 A beautiful app that confuses everyone has ___. (a) good UX but poor UI (b) perfect UX (c) no UI at all (d) good UI but poor UX
  10. 10.🔢 In a food-order flow, which comes first: “pay for the order” or “pick a dish”? (a) pay for the order (b) pick a dish
  11. 11.✏️ Why draw a wireframe before coding? (a) it runs the app (b) changes are quick (c) it saves data (d) it adds colours
  12. 12.Which of these is true of a tab bar? (a) opens a list of pages (b) shows 3 to 5 icons (c) hides extra links (d) undoes one move
  13. 13.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ search box ]
    [ tab bar ]
    [ big picture ]
    [ Add button ]
    [ Save button ]     (a) tab bar (b) Save button (c) Add button (d) search box
  14. 14.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Pens
    Design B: Home → Item → Size → Menu
  15. 15.💾 What number does this code show?
    let songs = ["Kites", "Stars", "Sunrise", "Monsoon"];
    songs.push("Rain");
    songs.push("Ocean");
    show(songs.length);
  16. 16.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) big touch targets (d) text that can grow
  17. 17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap Back
    3. open “Friend list”
    4. tap the Feed tab
    5. tap the Settings tab
    Which screen are you on now?     (a) Settings (b) Chat (c) Feed (d) Friend list
  18. 18.🎨 Who should you test the UX with? (a) only yourself (b) the app icon (c) nobody (d) real users
  19. 19.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ top bar ]
    [ Add button ]
    [ search box ]
    [ list of items ]
    [ title text ]     (a) Add button (b) list of items (c) search box (d) title text
  20. 20.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. open “Edit photo”
    3. tap the Feed tab
    4. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
  21. 21.True or false: a tiny 20 px button is good button design. (a) False (b) True
  22. 22.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
  23. 23.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Size → Shop → Results
    Design B: Home → Pay → Search
  24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Settings tab
    3. tap the Feed tab
    4. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
  25. 25.🔍 Which is the odd one out? (a) how easy sign-up is (b) the button colours (c) the screen layout (d) the theme colours
  26. 26.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Menu → Address → Shop
    Design B: Home → Menu → Offers → Cart → Pens → Search → Results
  27. 27.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 64 px tall
    Start button: 60 px tall
    Next button: 36 px tall
    Save button: 48 px tall     (a) Cancel (b) Next (c) Start (d) Save
  28. 28.🖼️ In this wireframe (top to bottom), what is right above the list of items?
    [ search box ]
    [ top bar ]
    [ Save button ]
    [ list of items ]     (a) search box (b) Save button (c) top bar
  29. 29.True or false: how many taps it takes is about UI (the look). (a) False (b) True
  30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Lessons tab
    3. open “Help page”
    4. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
  31. 31.True or false: a class leaderboard fits saving in the cloud. (a) True (b) False
  32. 32.🔢 In a quiz-app flow, which comes first: “read a question” or “pick an answer”? (a) pick an answer (b) read a question
  33. 33.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
  34. 34.🔢 In a quiz-app flow, which comes FIRST? (a) see if it is right (b) tap “Start quiz” (c) see the final score (d) read a question
  35. 35.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
  36. 36.🖼️ In this wireframe (top to bottom), what is right below the Add button?
    [ Add button ]
    [ Save button ]
    [ top bar ]
    [ tab bar ]     (a) tab bar (b) top bar (c) Save button
  37. 37.🧭 Why should every screen show where you are? (a) to hide the menu (b) to use more battery (c) to look busy (d) so users do not get lost
  38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Menu: 10 px
    Title: 12 px
  39. 39.🔀 Why plan the user flow before building? (a) to skip testing (b) to hide the buttons (c) to add more taps (d) so each step is clear
  40. 40.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone

Answer key

  1. has no real colours
  2. reads the screen aloud
  3. search box
  4. No
  5. Body text
  6. the button colours
  7. the screen layout
  8. 16
  9. good UI but poor UX
  10. pick a dish
  11. changes are quick
  12. shows 3 to 5 icons
  13. tab bar
  14. 1
  15. 6
  16. colour as the only clue
  17. Settings
  18. real users
  19. Add button
  20. 0
  21. False
  22. False
  23. 1
  24. 1
  25. how easy sign-up is
  26. 2
  27. Next
  28. Save button
  29. False
  30. 2
  31. True
  32. read a question
  33. a wireframe
  34. tap “Start quiz”
  35. a wireframe
  36. Save button
  37. so users do not get lost
  38. 3
  39. so each step is clear
  40. helps everyone

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