App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 655 · 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.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Profile tab
   2. tap the Search tab
   3. tap the Profile tab
   4. tap the Profile tab
   How many times must you tap Back to reach the main screen of this tab?
2. 2.🔢 In a quiz-app flow, which comes FIRST? (a) see if it is right (b) pick an answer (c) tap “Start quiz” (d) read a question
3. 3.💾 pop() takes off the last item. What does this code show?
   let notes = ["Music", "Hindi", "Sports", "Art"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Sports (b) Hindi (c) Art (d) Music
4. 4.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
5. 5.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
6. 6.True or false: a wireframe shows the real fonts. (a) True (b) False
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 23 px
   Caption: 12 px
   Label: 21 px
   Footer: 12 px
8. 8.💾 What does this code show? (Positions start at 0.)
   let songs = ["Sunrise", "Ocean", "Kites", "Monsoon"];
   show(songs[1]); (a) Ocean (b) Kites (c) Sunrise (d) Monsoon
9. 9.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Menu → Pens → Pay → Cart → Offers → Address
   Design B: Home → Cart → Item → Pay
10. 10.🔢 In a food-order flow, which comes first: “pay for the order” or “pick a dish”? (a) pick a dish (b) pay for the order
11. 11.🔢 In a food-order flow, what comes right after “pay for the order”? (a) add it to the cart (b) open the menu (c) track the order (d) pick a dish
12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Help page”
    3. open “Friend list”
    Which screen are you on now? (a) Help page (b) Friend list (c) Home (d) Search
13. 13.🔢 In a food-order flow, which comes first: “track the order” or “add it to the cart”? (a) add it to the cart (b) track the order
14. 14.🧭 What does the back button usually do? (a) closes all apps (b) goes to the last screen (c) opens settings (d) deletes the page
15. 15.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) on the phone (b) in the cloud
16. 16.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Lessons tab
    3. open “Friend list”
    4. tap Back
    Which screen are you on now? (a) Lessons (b) Quiz (c) Friend list (d) Edit photo
17. 17.💾 pop() takes off the last item. What does this code show?
    let friends = ["Riya", "Aman", "Arjun", "Kabir", "Meera"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Arjun (b) Kabir (c) Aman (d) Riya
18. 18.Which of these fits saving on the phone? (a) chat messages to friends (b) a shared to-do list (c) the sound on/off setting (d) photos on two devices
19. 19.🧭 Where is a tab bar usually placed in a phone app? (a) at the bottom (b) in the middle (c) nowhere (d) inside a button
20. 20.🖼️ In this wireframe (top to bottom), what is right above the Save button?
    [ Add button ]
    [ menu icon ]
    [ search box ]
    [ Save button ] (a) menu icon (b) search box (c) Add button
21. 21.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) in the cloud (b) on the phone
22. 22.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
23. 23.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 44 px tall
    Done button: 48 px tall
    Back button: 52 px tall
    Start button: 56 px tall (a) Start (b) Done (c) Back (d) Next
24. 24.Which of these is true of a tab bar? (a) undoes one move (b) sits at the bottom (c) goes to the last screen (d) opens a list of pages
25. 25.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) open the camera screen (c) post the photo (d) write a caption
26. 26.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
27. 27.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Search
    Design B: Home → Menu → Item → Shop → Cart (a) Design B (b) Design A
28. 28.🌗 Is white on dark green easy or hard to read on a button? (a) hard to read (b) easy to read
29. 29.🔢 In a quiz-app flow, which comes first: “read a question” or “see the final score”? (a) see the final score (b) read a question
30. 30.🔢 In a sign-up flow, which comes FIRST? (a) type name and email (b) tap “Sign up” (c) enter the code sent (d) open the app
31. 31.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 44 px tall
    Save button: 64 px tall
    Done button: 56 px tall
32. 32.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Map”
    3. open “Map”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
33. 33.🧭 Which part of navigation hides extra links? (a) the back button (b) a tab bar (c) a menu button
34. 34.🖼️ How many parts (boxes) does this wireframe have?
    [ list of items ]
    [ top bar ]
    [ Add button ]
    [ filter buttons ]
    [ search box ]
    [ menu icon ]
35. 35.True or false: whether users get lost is about UI (the look). (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) captions on videos (d) text that can grow
37. 37.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Size → Offers → Results → Confirm
    Design B: Home → Menu → Pens → Search
38. 38.🔍 Which is the odd one out? (a) how easy sign-up is (b) the screen layout (c) the icon shapes (d) the button colours
39. 39.Which of these fits saving in the cloud? (a) a draft you are typing (b) chat messages to friends (c) notes to read offline (d) the sound on/off setting
40. 40.🌗 Is white on black easy or hard to read on a button? (a) easy to read (b) hard to read

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