App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 350 · 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.💾 What number does this code show?
   let score = 4;
   score = score - 2;
   score = score + 4;
   show(score);
2. 2.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Save button: 64 px tall
   Start button: 32 px tall
   Next button: 40 px tall
3. 3.🔢 In a food-order flow, what comes right after “pick a dish”? (a) check the cart (b) open the menu (c) add it to the cart (d) track the order
4. 4.🔍 Which is the odd one out? (a) the font size (b) how many taps it takes (c) how fast a task is done (d) whether users get lost
5. 5.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
6. 6.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Confirm → Address → Pay → Cart → Shop → Menu
   Design B: Home → Size → Item (a) Design B (b) Design A
7. 7.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) in the cloud (b) on the phone
8. 8.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
9. 9.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
10. 10.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
11. 11.🖼️ In this wireframe (top to bottom), what is right above the top bar?
    [ menu icon ]
    [ list of items ]
    [ top bar ]
    [ Save button ] (a) list of items (b) Save button (c) menu icon
12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Match report”
    3. tap Back
    4. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
13. 13.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
14. 14.Which of these is about UX (the experience)? (a) the button colours (b) the theme colours (c) how easy sign-up is (d) the font size
15. 15.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Shop → Cart → Confirm
    Design B: Home → Size → Menu → Item → Pens → Search (a) Design A (b) Design B
16. 16.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 52 px tall
    Next button: 52 px tall
    Help button: 40 px tall (a) Next (b) Help (c) Back
17. 17.🔢 In a quiz-app flow, which comes FIRST? (a) read a question (b) see if it is right (c) tap “Start quiz” (d) see the final score
18. 18.🔢 In a sign-up flow, which comes FIRST? (a) tap “Sign up” (b) open the app (c) see the home screen (d) type name and email
19. 19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap the Me tab
    3. open “Edit photo”
    4. tap Back
    Which screen are you on now? (a) Lessons (b) Me (c) Edit photo (d) Badges
20. 20.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
21. 21.Which of these is true of a menu button? (a) goes to the last screen (b) switches main sections (c) shows 3 to 5 icons (d) hides extra links
22. 22.✏️ A box with a cross in a wireframe usually means ___. (a) a picture goes here (b) an error (c) a closed app (d) delete this
23. 23.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Address → Item → Pens
    Design B: Home → Item → Address → Pay → Size → Search (a) Design B (b) Design A
24. 24.✏️ Why draw a wireframe before coding? (a) it runs the app (b) it saves data (c) changes are quick (d) it adds colours
25. 25.🔍 Which is the odd one out? (a) how easy sign-up is (b) the font size (c) the button colours (d) the icon shapes
26. 26.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
27. 27.Which colour pair is easy to read? (a) pale pink on white (b) light grey on white (c) black on yellow (d) red on green
28. 28.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Confirm → Cart → Shop
    Design B: Home → Pens → Pay → Results → Address → Size → Confirm
29. 29.🔢 In a quiz-app flow, which comes first: “see the final score” or “pick an answer”? (a) see the final score (b) pick an answer
30. 30.🎨 Is this about UI or UX: how easy sign-up is? (a) UX (b) UI
31. 31.🔢 In a quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) see if it is right (c) see the final score (d) pick an answer
32. 32.🔢 In a photo-post flow, which comes LAST? (a) add a filter (b) write a caption (c) take the photo (d) post the photo
33. 33.🖼️ In this wireframe (top to bottom), what is right below the menu icon?
    [ menu icon ]
    [ search box ]
    [ list of items ]
    [ filter buttons ] (a) search box (b) filter buttons (c) list of items
34. 34.True or false: a big, easy tap area is poor button design. (a) False (b) True
35. 35.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 60 px tall
    Start button: 60 px tall
    Help button: 44 px tall
    Done button: 40 px tall
36. 36.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Score card”
    3. open “Help page”
    4. tap the Feed tab
    Which screen are you on now? (a) Feed (b) Map (c) Help page (d) Score card
37. 37.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ top bar ]
    [ menu icon ]
    [ list of items ]
38. 38.💾 What number does this code show?
    let friends = ["Kabir", "Aman"];
    friends.push("Arjun");
    show(friends.length);
39. 39.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) captions on videos (d) big touch targets
40. 40.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ top bar ]
    [ search box ]
    [ big picture ]
    [ Add button ]
    [ list of items ] (a) Add button (b) list of items (c) big picture (d) top bar

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