App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 813 · 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 Feed, Chat, Settings. You start on Feed, then:
   1. open “Edit photo”
   2. tap Back
   3. open “Badges”
   Which screen are you on now? (a) Chat (b) Badges (c) Feed (d) Edit photo
2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Map”
   2. tap Back
   3. open “Video”
   4. open “Edit photo”
   Which screen are you on now? (a) Map (b) Edit photo (c) Home (d) Video
3. 3.💾 What number does this code show?
   let score = 5;
   score = score - 2;
   score = score + 1;
   show(score);
4. 4.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) a 3D printer (c) pencil and paper (d) a phone case
5. 5.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “pick an answer”? (a) tap “Start quiz” (b) pick an answer
6. 6.🧭 Which part of navigation hides extra links? (a) a menu button (b) the back button (c) a tab bar
7. 7.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
8. 8.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to add colour (d) to slow them down
9. 9.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
10. 10.Which of these fits saving in the cloud? (a) the sound on/off setting (b) a draft you are typing (c) your last game level (d) a class leaderboard
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Body text: 9 px
    Menu: 17 px
    Hint: 17 px
    Label: 28 px (a) Menu (b) Body text (c) Hint (d) Title
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 24 px
    Hint: 13 px
    Caption: 22 px (a) Body text (b) Caption (c) Hint
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 14 px
    Caption: 19 px
    Body text: 17 px
    Title: 23 px
    Menu: 16 px
14. 14.True or false: chat messages to friends fits saving on the phone. (a) True (b) False
15. 15.🧭 Which part of navigation switches main sections? (a) a tab bar (b) a menu button (c) the back button
16. 16.True or false: icons with no meaning is good button design. (a) False (b) True
17. 17.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
18. 18.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
19. 19.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
20. 20.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) text that can grow (d) fast-flashing lights
21. 21.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “see the home screen”? (a) see the home screen (b) tap “Sign up”
22. 22.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap the Lessons tab
    3. open “Match report”
    4. open “Map”
    Which screen are you on now? (a) Video (b) Lessons (c) Match report (d) Map
23. 23.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Size → Confirm → Pay → Pens → Shop
    Design B: Home → Confirm → Menu → Size
24. 24.True or false: the screen layout is about UI (the look). (a) False (b) True
25. 25.🖼️ How many parts (boxes) does this wireframe have?
    [ top bar ]
    [ filter buttons ]
    [ list of items ]
    [ Save button ]
    [ menu icon ]
    [ tab bar ]
26. 26.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
27. 27.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 32 px tall
    Done button: 48 px tall
    Start button: 44 px tall
    Help button: 40 px tall
28. 28.True or false: a wireframe uses the final pictures. (a) False (b) True
29. 29.Which colour pair is easy to read? (a) pale pink on white (b) black on yellow (c) yellow on white (d) light grey on white
30. 30.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 24 px tall
    Start button: 56 px tall
    Done button: 60 px tall
    Help button: 52 px tall (a) Done (b) Cancel (c) Start (d) Help
31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Edit photo”
    3. open “Match report”
    4. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
32. 32.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) strong colour contrast (d) text that can grow
33. 33.Which of these is true of a wireframe? (a) uses plain grey boxes (b) uses the final pictures (c) looks like the real app (d) has the real colours
34. 34.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ Save button ]
    [ title text ]
    [ search box ]
    [ big picture ] (a) Save button (b) title text (c) big picture
35. 35.✏️ What is a wireframe? (a) the finished app (b) a simple screen sketch (c) a charging cable (d) a type of password
36. 36.🔀 Why plan the user flow before building? (a) to add more taps (b) to skip testing (c) to hide the buttons (d) so each step is clear
37. 37.🌗 Is black on yellow easy or hard to read on a button? (a) easy to read (b) hard to read
38. 38.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Edit photo”
    3. open “Edit photo”
    Which screen are you on now? (a) Home (b) Search (c) Edit photo (d) Profile
39. 39.🔢 In a photo-post flow, which comes first: “post the photo” or “open the camera screen”? (a) post the photo (b) open the camera screen
40. 40.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) has no real colours (d) uses the final pictures

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