App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 212 · 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.💾 Data saved only on the phone is lost when ___. (a) the screen turns off (b) you send a message (c) the app is closed (d) the phone is lost
2. 2.🖼️ In this wireframe (top to bottom), what is right below the big picture?
   [ tab bar ]
   [ big picture ]
   [ title text ]
   [ Add button ] (a) title text (b) tab bar (c) Add button
3. 3.🎨 Who should you test the UX with? (a) only yourself (b) nobody (c) the app icon (d) real users
4. 4.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
5. 5.🔢 In a food-order flow, which comes FIRST? (a) check the cart (b) open the menu (c) track the order (d) add it to the cart
6. 6.🔢 In a food-order flow, which comes first: “open the menu” or “track the order”? (a) track the order (b) open the menu
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 10 px
   Caption: 19 px
   Menu: 23 px
8. 8.True or false: the button colours is about UI (the look). (a) False (b) True
9. 9.Which of these is true of a wireframe? (a) shows the real fonts (b) uses the final pictures (c) is a quick sketch (d) looks like the real app
10. 10.🔢 In a sign-up flow, which comes first: “open the app” or “type name and email”? (a) open the app (b) type name and email
11. 11.Which colour pair is hard to read? (a) black on yellow (b) light grey on white (c) white on dark green (d) dark blue on white
12. 12.💾 What is a variable? (a) a picture (b) a named box for a value (c) a phone setting (d) a type of screen
13. 13.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Cart → Confirm → Address → Size → Results
    Design B: Home → Address → Shop → Item → Pay
14. 14.🎨 Fewer taps to finish a task usually means ___. (a) better UX (b) worse UX (c) more colours (d) a bigger app
15. 15.🧭 Which part of navigation switches main sections? (a) a menu button (b) a tab bar (c) the back button
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Help page”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
17. 17.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 56 px tall
    Save button: 40 px tall
    Done button: 36 px tall
18. 18.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
19. 19.True or false: how users feel after is about UX (the experience). (a) True (b) False
20. 20.🔢 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
21. 21.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
22. 22.Which of these is about UX (the experience)? (a) the screen layout (b) the button colours (c) how easy sign-up is (d) the font size
23. 23.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Pens
    Design B: Home → Cart → Item → Shop → Confirm → Search (a) Design B (b) Design A
24. 24.True or false: a clear word like Save is poor button design. (a) True (b) False
25. 25.✏️ Why draw a wireframe before coding? (a) it runs the app (b) changes are quick (c) it saves data (d) it adds colours
26. 26.🔢 In a food-order flow, what comes right after “pay for the order”? (a) track the order (b) open the menu (c) pick a dish (d) add it to the cart
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Caption: 20 px
    Hint: 11 px
    Footer: 11 px
28. 28.🔢 In a food-order flow, what comes right after “open the menu”? (a) track the order (b) pay for the order (c) check the cart (d) pick a dish
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Body text: 19 px
    Caption: 10 px (a) Body text (b) Caption (c) Title
30. 30.True or false: the font size is about UI (the look). (a) True (b) False
31. 31.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
32. 32.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 68 px tall
    Done button: 56 px tall
    Start button: 56 px tall
    Send button: 32 px tall (a) Send (b) Back (c) Done (d) Start
33. 33.🔢 In a photo-post flow, which comes FIRST? (a) write a caption (b) post the photo (c) open the camera screen (d) add a filter
34. 34.🔢 In a photo-post flow, which comes first: “take the photo” or “post the photo”? (a) post the photo (b) take the photo
35. 35.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
36. 36.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 48 px tall
    Back button: 60 px tall
    Save button: 64 px tall
37. 37.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 52 px tall
    Done button: 52 px tall
    Next button: 44 px tall
    Start button: 64 px tall (a) Start (b) Next (c) Save (d) Done
38. 38.Which of these is about UX (the experience)? (a) the icon shapes (b) the button colours (c) the theme colours (d) how fast a task is done
39. 39.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 24 px tall. How many px taller must it be?
40. 40.Which of these fits saving in the cloud? (a) photos on two devices (b) the sound on/off setting (c) notes to read offline (d) a draft you are typing

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