App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 178 · 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.Which of these fits saving on the phone? (a) a shared to-do list (b) photos on two devices (c) chat messages to friends (d) your last game level
2. 2.Which colour pair is easy to read? (a) white on black (b) red on green (c) pale pink on white (d) yellow on white
3. 3.True or false: how many taps it takes is about UI (the look). (a) False (b) True
4. 4.🔢 In a sign-up flow, what comes right after “open the app”? (a) make a password (b) tap “Sign up” (c) see the home screen (d) type name and email
5. 5.🔢 In a quiz-app flow, which comes first: “see the final score” or “see if it is right”? (a) see the final score (b) see if it is right
6. 6.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Pay → Results → Search → Pens → Size → Shop
   Design B: Home → Shop → Pens (a) Design A (b) Design B
7. 7.🖼️ In this wireframe (top to bottom), what is right below the search box?
   [ menu icon ]
   [ Add button ]
   [ list of items ]
   [ search box ]
   [ Save button ] (a) list of items (b) Save button (c) Add button (d) menu icon
8. 8.🔍 Which is the odd one out? (a) how fast a task is done (b) the theme colours (c) how many taps it takes (d) whether users get lost
9. 9.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Send button: 52 px tall
   Done button: 48 px tall
   Help button: 48 px tall
   Back button: 40 px tall (a) Send (b) Back (c) Help (d) Done
10. 10.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Edit photo”
    3. tap Back
    4. open “Match report”
    Which screen are you on now? (a) Search (b) Match report (c) Edit photo (d) Home
11. 11.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Results → Pens → Size → Menu
    Design B: Home → Item → Pens
12. 12.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) switches main sections (c) hides extra links (d) goes to the last screen
13. 13.🔢 In a quiz-app flow, which comes first: “see if it is right” or “tap “Start quiz””? (a) tap “Start quiz” (b) see if it is right
14. 14.🔀 Why plan the user flow before building? (a) so each step is clear (b) to add more taps (c) to hide the buttons (d) to skip testing
15. 15.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) track the order (b) pick a dish (c) check the cart (d) open the menu
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Pens → Item
    Design B: Home → Shop → Confirm → Item → Address → Offers → Pens
17. 17.Which of these is about UI (the look)? (a) how users feel after (b) the screen layout (c) whether users get lost (d) how easy sign-up is
18. 18.🔍 Which is the odd one out? (a) the theme colours (b) the screen layout (c) whether users get lost (d) the icon shapes
19. 19.🔍 Which is the odd one out? (a) how easy sign-up is (b) the button colours (c) how users feel after (d) how fast a task is done
20. 20.🔢 In a sign-up flow, which comes FIRST? (a) make a password (b) type name and email (c) open the app (d) tap “Sign up”
21. 21.True or false: notes to read offline fits saving on the phone. (a) False (b) True
22. 22.Which of these helps everyone use the app? (a) labels on every icon (b) sudden loud sounds (c) fast-flashing lights (d) tiny tap areas
23. 23.🧭 Why should every screen show where you are? (a) to use more battery (b) to hide the menu (c) to look busy (d) so users do not get lost
24. 24.🎨 UX stands for user ___. (a) express (b) example (c) extra (d) experience
25. 25.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
26. 26.Which of these is true of the back button? (a) switches main sections (b) opens a list of pages (c) sits at the bottom (d) undoes one move
27. 27.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) on the phone (b) in the cloud
28. 28.🎨 Fewer taps to finish a task usually means ___. (a) better UX (b) worse UX (c) more colours (d) a bigger app
29. 29.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
30. 30.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Item → Address
    Design B: Home → Search → Size → Results → Pay (a) Design B (b) Design A
31. 31.🔘 Our rule: buttons are at least 48 px tall. The Start button is 20 px tall. How many px taller must it be?
32. 32.🔢 In a food-order flow, what comes right after “open the menu”? (a) pick a dish (b) pay for the order (c) track the order (d) check the cart
33. 33.🔍 Which is the odd one out? (a) how many taps it takes (b) the font size (c) how easy sign-up is (d) how fast a task is done
34. 34.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a wireframe (b) a final design
35. 35.💾 What number does this code show?
    let stars = 9;
    stars = stars - 9;
    stars = stars + 3;
    show(stars);
36. 36.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Feed tab
    3. tap the Feed tab
    Which screen are you on now? (a) Map (b) Chat (c) Settings (d) Feed
37. 37.🔍 Which is the odd one out? (a) the icon shapes (b) how users feel after (c) whether users get lost (d) how fast a task is done
38. 38.Which of these is about UX (the experience)? (a) how fast a task is done (b) the button colours (c) the theme colours (d) the screen layout
39. 39.True or false: a wireframe is a quick sketch. (a) True (b) False
40. 40.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Map”
    3. tap Back
    4. open “Friend list”
    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