App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 737 · 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 photo-post flow, what comes right after “open the camera screen”? (a) add a filter (b) write a caption (c) take the photo (d) post the photo
2. 2.🔢 In a photo-post flow, which comes first: “post the photo” or “take the photo”? (a) post the photo (b) take the photo
3. 3.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) in the cloud (b) on the phone
4. 4.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ list of items ]
   [ title text ]
   [ Save button ]
   [ big picture ] (a) Save button (b) big picture (c) list of items (d) title text
5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Video”
   2. tap the Me tab
   3. open “Friend list”
   How many times must you tap Back to reach the main screen of this tab?
6. 6.💾 What number does this code show?
   let lives = 6;
   lives = lives - 4;
   lives = lives + 2;
   show(lives);
7. 7.Which of these is true of a wireframe? (a) has the real colours (b) looks like the real app (c) shows where things go (d) shows the real fonts
8. 8.🖼️ In this wireframe (top to bottom), what is right below the list of items?
   [ search box ]
   [ list of items ]
   [ Add button ]
   [ filter buttons ] (a) Add button (b) filter buttons (c) search box
9. 9.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
10. 10.🖼️ In this wireframe (top to bottom), what is right above the Add button?
    [ filter buttons ]
    [ search box ]
    [ Add button ]
    [ Save button ] (a) filter buttons (b) Save button (c) search box
11. 11.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
12. 12.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Music", "Science", "Hindi", "Art"];
    show(notes[1]); (a) Hindi (b) Maths (c) Science (d) Music
13. 13.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) icons with no labels (d) big touch targets
14. 14.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
15. 15.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ filter buttons ]
    [ top bar ]
    [ menu icon ]
    [ title text ]
    [ list of items ] (a) title text (b) filter buttons (c) list of items (d) menu icon
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Address → Confirm → Menu
    Design B: Home → Pens → Address → Size → Menu → Cart → Shop
17. 17.Which of these is true of a menu button? (a) hides extra links (b) sits at the bottom (c) goes to the last screen (d) switches main sections
18. 18.Which of these is about UI (the look)? (a) whether users get lost (b) how many taps it takes (c) the icon shapes (d) how fast a task is done
19. 19.True or false: a final design uses the final pictures. (a) True (b) False
20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Home tab
    3. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
21. 21.Which of these is about UI (the look)? (a) whether users get lost (b) how fast a task is done (c) the theme colours (d) how easy sign-up is
22. 22.🔢 In a food-order flow, which comes first: “add it to the cart” or “open the menu”? (a) add it to the cart (b) open the menu
23. 23.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Menu → Offers → Address → Item → Pay
    Design B: Home → Address → Results → Offers → Pens → Cart (a) Design B (b) Design A
24. 24.💾 Which works with no internet at all? (a) data saved on the phone (b) a shared chat (c) a cloud leaderboard (d) a cloud backup
25. 25.🔢 In a sign-up flow, which comes LAST? (a) see the home screen (b) type name and email (c) enter the code sent (d) make a password
26. 26.True or false: the sound on/off setting fits saving on the phone. (a) False (b) True
27. 27.Which of these is true of a final design? (a) uses plain grey boxes (b) has no real colours (c) shows where things go (d) uses the final pictures
28. 28.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) open the menu (b) check the cart (c) pay for the order (d) track the order
29. 29.🔍 Which is the odd one out? (a) the icon shapes (b) the screen layout (c) the theme colours (d) how many taps it takes
30. 30.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) tap “Start quiz” (b) read a question (c) pick an answer (d) see the final score
31. 31.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 20 px
    Hint: 17 px
    Title: 13 px (a) Title (b) Hint (c) Caption
33. 33.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone
34. 34.🔀 What is a user flow? (a) a colour theme (b) a type of font (c) the path through screens (d) a charging cable
35. 35.💾 Data saved only on the phone is lost when ___. (a) the screen turns off (b) the app is closed (c) the phone is lost (d) you send a message
36. 36.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Offers → Search
    Design B: Home → Cart → Menu (a) Design A (b) Design B
37. 37.Which of these is true of a tab bar? (a) goes to the last screen (b) undoes one move (c) hides extra links (d) sits at the bottom
38. 38.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
39. 39.True or false: buttons almost touching is good button design. (a) True (b) False
40. 40.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?

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