App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 165 · 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.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) pay for the order (b) open the menu (c) track the order (d) check the cart
2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Feed tab
   2. open “Match report”
   3. tap the Chat tab
   4. tap the Settings tab
   Which screen are you on now? (a) Chat (b) Settings (c) Match report (d) Feed
3. 3.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Send button: 52 px tall
   Cancel button: 36 px tall
   Done button: 60 px tall
   Save button: 52 px tall (a) Save (b) Done (c) Send (d) Cancel
4. 4.Which colour pair is hard to read? (a) white on dark green (b) black on pale grey (c) pale pink on white (d) black on yellow
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Menu → Item → Cart → Shop
   Design B: Home → Pay → Results → Address
6. 6.True or false: a tiny 20 px button is poor button design. (a) True (b) False
7. 7.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) home screen (c) dead end (d) shortcut
8. 8.🌗 Is dark blue on white easy or hard to read on a button? (a) easy to read (b) hard to read
9. 9.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Offers → Pay
   Design B: Home → Menu → Confirm → Pens → Results (a) Design B (b) Design A
10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Search tab
    3. open “Help page”
    Which screen are you on now? (a) Search (b) Help page (c) Home (d) Profile
11. 11.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) make a password (b) enter the code sent (c) open the app (d) type name and email
12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Score card”
    3. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Body text: 27 px
    Label: 12 px
    Menu: 18 px (a) Body text (b) Title (c) Label (d) Menu
14. 14.Which colour pair is hard to read? (a) dark blue on black (b) black on pale grey (c) white on black (d) black on yellow
15. 15.🔍 Which is the odd one out? (a) the theme colours (b) the screen layout (c) the font size (d) how easy sign-up is
16. 16.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
17. 17.Which colour pair is easy to read? (a) white on black (b) red on green (c) pale pink on white (d) light grey on white
18. 18.Which of these is true of a final design? (a) looks like the real app (b) shows where things go (c) uses plain grey boxes (d) is a quick sketch
19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Quiz tab
    3. open “Edit photo”
    4. open “Map”
    5. open “Match report”
    Which screen are you on now? (a) Edit photo (b) Map (c) Lessons (d) Match report
20. 20.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
21. 21.🔢 In a sign-up flow, which comes first: “make a password” or “type name and email”? (a) type name and email (b) make a password
22. 22.🧭 Which part of navigation switches main sections? (a) the back button (b) a menu button (c) a tab bar
23. 23.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Size → Item
    Design B: Home → Cart → Search → Results → Size → Pens → Menu (a) Design A (b) Design B
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Video”
    3. open “Map”
    Which screen are you on now? (a) Map (b) Home (c) Search (d) Video
25. 25.🎨 Fewer taps to finish a task usually means ___. (a) better UX (b) a bigger app (c) worse UX (d) more colours
26. 26.Which of these fits saving on the phone? (a) notes to read offline (b) photos on two devices (c) a shared to-do list (d) chat messages to friends
27. 27.💾 What number does this code show?
    let stars = 7;
    stars = stars - 7;
    stars = stars + 1;
    show(stars);
28. 28.🔢 In a food-order flow, what comes right after “pick a dish”? (a) track the order (b) add it to the cart (c) open the menu (d) check the cart
29. 29.Which of these fits saving in the cloud? (a) the sound on/off setting (b) your last game level (c) a draft you are typing (d) chat messages to friends
30. 30.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) at the bottom (c) nowhere (d) inside a button
31. 31.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
32. 32.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
33. 33.🔢 In a sign-up flow, which comes FIRST? (a) open the app (b) type name and email (c) tap “Sign up” (d) enter the code sent
34. 34.💾 What does this code show? (Positions start at 0.)
    let songs = ["Rain", "Ocean", "Monsoon"];
    show(songs[1]); (a) Rain (b) Monsoon (c) Ocean
35. 35.True or false: the theme colours is about UX (the experience). (a) True (b) False
36. 36.🔢 In a photo-post flow, what comes right after “add a filter”? (a) open the camera screen (b) post the photo (c) take the photo (d) write a caption
37. 37.🔍 Which is the odd one out? (a) whether users get lost (b) how easy sign-up is (c) how fast a task is done (d) the button colours
38. 38.True or false: a wireframe shows where things go. (a) False (b) True
39. 39.True or false: a big, easy tap area is poor button design. (a) True (b) False
40. 40.Which of these makes the app harder to use? (a) colour as the only clue (b) captions on videos (c) strong colour contrast (d) big touch targets

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