App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 654 · 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.🔍 Which is the odd one out? (a) how fast a task is done (b) the icon shapes (c) the theme colours (d) the button colours
2. 2.Which colour pair is hard to read? (a) white on black (b) black on pale grey (c) dark blue on white (d) red on green
3. 3.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Friend list”
   2. tap Back
   3. tap the Lessons tab
   4. open “Video”
   5. tap Back
   How many times must you tap Back to reach the main screen of this tab?
4. 4.🎨 UX stands for user ___. (a) extra (b) express (c) experience (d) example
5. 5.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
   [ top bar ]
   [ filter buttons ]
   [ Save button ]
   [ search box ] (a) search box (b) top bar (c) Save button
6. 6.🖼️ In this wireframe (top to bottom), what is right below the top bar?
   [ filter buttons ]
   [ list of items ]
   [ top bar ]
   [ search box ] (a) search box (b) list of items (c) filter buttons
7. 7.🔢 In a photo-post flow, which comes first: “post the photo” or “take the photo”? (a) post the photo (b) take the photo
8. 8.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) strong colour contrast (d) sudden loud sounds
9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Lessons tab
   2. open “Match report”
   3. open “Score card”
   Which screen are you on now? (a) Match report (b) Lessons (c) Quiz (d) Score card
10. 10.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
11. 11.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Offers → Results → Search → Menu
    Design B: Home → Cart → Pay
12. 12.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
13. 13.✏️ Why draw a wireframe before coding? (a) it adds colours (b) it runs the app (c) changes are quick (d) it saves data
14. 14.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. open “Badges”
    3. open “Edit photo”
    4. tap Back
    Which screen are you on now? (a) Edit photo (b) Friend list (c) Badges (d) Lessons
15. 15.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
16. 16.🔢 In a photo-post flow, what comes right after “write a caption”? (a) add a filter (b) post the photo (c) take the photo (d) open the camera screen
17. 17.💾 Which can hold many values in order? (a) a single number (b) a switch (c) a list (d) a button
18. 18.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Offers
    Design B: Home → Pay → Results → Offers → Confirm → Cart → Size (a) Design B (b) Design A
19. 19.Which of these is true of a wireframe? (a) looks like the real app (b) shows where things go (c) shows the real fonts (d) has the real colours
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Body text: 12 px
    Label: 22 px (a) Label (b) Title (c) Body text
21. 21.Which colour pair is easy to read? (a) pale pink on white (b) dark blue on white (c) dark blue on black (d) yellow on white
22. 22.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) on the phone (b) in the cloud
23. 23.True or false: the font size is about UI (the look). (a) False (b) True
24. 24.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) opens a list of pages (c) switches main sections (d) undoes one move
25. 25.True or false: photos on two devices fits saving in the cloud. (a) False (b) True
26. 26.💾 Which works with no internet at all? (a) a cloud leaderboard (b) a shared chat (c) a cloud backup (d) data saved on the phone
27. 27.🌗 Is black on pale grey easy or hard to read on a button? (a) hard to read (b) easy to read
28. 28.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) the back button (c) a menu button
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Footer: 10 px
    Hint: 24 px
    Title: 23 px
    Caption: 26 px (a) Hint (b) Title (c) Body text (d) Footer
30. 30.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
31. 31.🖼️ In this wireframe (top to bottom), what is right above the Save button?
    [ Add button ]
    [ search box ]
    [ Save button ]
    [ menu icon ]
    [ top bar ] (a) Add button (b) search box (c) top bar (d) menu icon
32. 32.Which of these is true of a final design? (a) uses the final pictures (b) is a quick sketch (c) shows where things go (d) uses plain grey boxes
33. 33.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
34. 34.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) fast-flashing lights (d) colour as the only clue
35. 35.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pay → Shop → Offers → Menu
    Design B: Home → Search → Size
36. 36.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
37. 37.True or false: buttons almost touching is poor button design. (a) False (b) True
38. 38.🔘 Our rule: buttons are at least 48 px tall. The Help button is 32 px tall. How many px taller must it be?
39. 39.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) a phone case (c) pencil and paper (d) a 3D printer
40. 40.Which of these is about UX (the experience)? (a) how fast a task is done (b) the theme colours (c) the button colours (d) the icon shapes

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