App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 807 · 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.✏️ A box with a cross in a wireframe usually means ___. (a) a picture goes here (b) an error (c) delete this (d) a closed app
2. 2.🔢 In a food-order flow, which comes first: “add it to the cart” or “track the order”? (a) track the order (b) add it to the cart
3. 3.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
4. 4.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
5. 5.Which of these is true of a final design? (a) is a quick sketch (b) has no real colours (c) shows where things go (d) has the real colours
6. 6.Which of these is true of a wireframe? (a) uses plain grey boxes (b) has the real colours (c) shows the real fonts (d) looks like the real app
7. 7.True or false: a draft you are typing fits saving in the cloud. (a) True (b) False
8. 8.🧭 Which part of navigation undoes one move? (a) a menu button (b) the back button (c) a tab bar
9. 9.True or false: the font size is about UX (the experience). (a) True (b) False
10. 10.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) make a password (b) type name and email (c) see the home screen (d) open the app
11. 11.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Pens → Pay → Results
    Design B: Home → Confirm → Shop → Pay → Results → Address (a) Design B (b) Design A
12. 12.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 40 px tall
    Save button: 44 px tall
    Help button: 56 px tall
13. 13.🔢 In a photo-post flow, what comes right after “write a caption”? (a) take the photo (b) open the camera screen (c) add a filter (d) post the photo
14. 14.Which of these is about UI (the look)? (a) how users feel after (b) the button colours (c) how fast a task is done (d) whether users get lost
15. 15.Which of these is about UX (the experience)? (a) the screen layout (b) the theme colours (c) how many taps it takes (d) the button colours
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Confirm → Offers
    Design B: Home → Item → Address → Pay → Pens
17. 17.Which of these is about UI (the look)? (a) how easy sign-up is (b) how users feel after (c) how fast a task is done (d) the theme colours
18. 18.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 24 px tall
    Help button: 52 px tall
    Save button: 56 px tall
    Cancel button: 68 px tall (a) Cancel (b) Save (c) Done (d) Help
19. 19.Which colour pair is hard to read? (a) black on pale grey (b) white on black (c) dark blue on white (d) light grey on white
20. 20.🔢 In a food-order flow, which comes first: “track the order” or “pick a dish”? (a) pick a dish (b) track the order
21. 21.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 1 (c) 20 (d) 3 to 5
22. 22.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
23. 23.🔢 In a photo-post flow, which comes first: “open the camera screen” or “add a filter”? (a) add a filter (b) open the camera screen
24. 24.🔍 Which is the odd one out? (a) the button colours (b) how fast a task is done (c) how easy sign-up is (d) how users feel after
25. 25.True or false: a wireframe has no real colours. (a) False (b) True
26. 26.True or false: space between buttons is good button design. (a) False (b) True
27. 27.True or false: the font size is about UI (the look). (a) True (b) False
28. 28.🔢 In a sign-up flow, what comes right after “make a password”? (a) open the app (b) tap “Sign up” (c) type name and email (d) enter the code sent
29. 29.🔢 In a sign-up flow, which comes LAST? (a) make a password (b) type name and email (c) tap “Sign up” (d) see the home screen
30. 30.Which of these is true of a tab bar? (a) shows 3 to 5 icons (b) hides extra links (c) goes to the last screen (d) opens a list of pages
31. 31.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
32. 32.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Menu → Shop → Confirm → Offers
    Design B: Home → Item → Confirm (a) Design B (b) Design A
33. 33.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
34. 34.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Cart → Menu → Pay → Address → Search
    Design B: Home → Pay → Size → Pens → Cart → Results → Address
35. 35.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Menu → Size → Item → Offers
    Design B: Home → Results → Cart → Offers → Pay (a) Design A (b) Design B
36. 36.🧭 What does the back button usually do? (a) closes all apps (b) deletes the page (c) opens settings (d) goes to the last screen
37. 37.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 56 px tall
    Start button: 36 px tall
    Save button: 36 px tall
    Next button: 36 px tall
38. 38.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) home screen (c) dead end (d) shortcut
39. 39.💾 pop() takes off the last item. What does this code show?
    let songs = ["Kites", "Sunrise", "Monsoon"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Monsoon (b) Kites (c) Sunrise
40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Match report”
    3. tap Back
    4. tap the Settings tab
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?

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