App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 962 · 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 Home, Search, Profile. You start on Home, then:
   1. tap the Search tab
   2. open “Video”
   3. open “Badges”
   4. open “Help page”
   How many times must you tap Back to reach the main screen of this tab?
2. 2.True or false: the font size is about UI (the look). (a) True (b) False
3. 3.✏️ What is the easiest way to draw a first wireframe? (a) a phone case (b) a 3D printer (c) pencil and paper (d) a microphone
4. 4.Which of these is true of a final design? (a) looks like the real app (b) uses plain grey boxes (c) is a quick sketch (d) shows where things go
5. 5.True or false: your last game level fits saving in the cloud. (a) False (b) True
6. 6.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) post the photo (b) add a filter (c) write a caption (d) take the photo
7. 7.True or false: a clear word like Save is good button design. (a) False (b) True
8. 8.💾 What number does this code show?
   let stars = 7;
   stars = stars - 2;
   stars = stars + 1;
   show(stars);
9. 9.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 20 (c) 10 to 12 (d) 3 to 5
10. 10.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Size → Cart → Menu → Shop → Confirm
    Design B: Home → Size → Pay → Pens → Search
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Footer: 22 px
    Title: 10 px (a) Label (b) Footer (c) Title
12. 12.🔢 In a photo-post flow, what comes right after “take the photo”? (a) add a filter (b) open the camera screen (c) write a caption (d) post the photo
13. 13.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) open the app (b) enter the code sent (c) see the home screen (d) type name and email
14. 14.💾 Which can hold many values in order? (a) a button (b) a list (c) a switch (d) a single number
15. 15.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
16. 16.True or false: icons with no meaning is poor button design. (a) True (b) False
17. 17.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Results → Item
    Design B: Home → Size → Pay → Item → Search → Menu (a) Design B (b) Design A
18. 18.🔢 In a food-order flow, which comes first: “open the menu” or “add it to the cart”? (a) open the menu (b) add it to the cart
19. 19.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
20. 20.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
21. 21.True or false: buttons almost touching is good button design. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) labels on every icon (d) strong colour contrast
23. 23.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 40 px tall
    Save button: 64 px tall
    Help button: 68 px tall (a) Save (b) Help (c) Next
24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. open “Match report”
    3. tap Back
    Which screen are you on now? (a) Feed (b) Match report (c) Chat (d) Score card
25. 25.True or false: a shared to-do list fits saving in the cloud. (a) False (b) True
26. 26.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Label: 20 px
    Body text: 11 px
    Footer: 18 px
28. 28.🔘 Our rule: buttons are at least 48 px tall. The Help button is 32 px tall. How many px taller must it be?
29. 29.🔍 Which is the odd one out? (a) how users feel after (b) the button colours (c) the icon shapes (d) the screen layout
30. 30.💾 What number does this code show?
    let points = 9;
    points = points - 7;
    points = points + 3;
    show(points);
31. 31.💾 What does this code show? (Positions start at 0.)
    let notes = ["Hindi", "Science", "Maths"];
    show(notes[0]); (a) Science (b) Hindi (c) Maths
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Body text: 22 px
    Title: 13 px (a) Body text (b) Title (c) Label
33. 33.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Address → Offers → Cart → Search
    Design B: Home → Confirm → Pens → Shop → Cart → Menu → Search
34. 34.True or false: how many taps it takes is about UX (the experience). (a) True (b) False
35. 35.✏️ What is a wireframe? (a) a type of password (b) a charging cable (c) the finished app (d) a simple screen sketch
36. 36.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) the back button (c) a tab bar
37. 37.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 60 px tall
    Save button: 48 px tall
    Send button: 32 px tall
    Done button: 52 px tall (a) Send (b) Done (c) Help (d) Save
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. tap the Chat tab
    3. tap the Feed tab
    Which screen are you on now? (a) Chat (b) Feed (c) Settings (d) Friend list
39. 39.True or false: how easy sign-up is is about UI (the look). (a) True (b) False
40. 40.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) see the home screen (b) tap “Sign up” (c) open the app (d) make a password

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