App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 218 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 24 px
   Hint: 23 px
   Menu: 22 px
2. 2.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Help button: 40 px tall
   Back button: 48 px tall
   Send button: 60 px tall
3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Chat tab
   2. tap the Settings tab
   3. open “Edit photo”
   4. tap the Feed tab
   How many times must you tap Back to reach the main screen of this tab?
4. 4.💾 What number does this code show?
   let score = 4;
   score = score - 3;
   score = score + 3;
   show(score);
5. 5.🧭 Why should every screen show where you are? (a) to use more battery (b) so users do not get lost (c) to hide the menu (d) to look busy
6. 6.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a clear next step (c) a dead end (d) a random page
7. 7.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Cart → Menu → Results
   Design B: Home → Shop → Menu → Cart → Offers → Item → Address
8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Me tab
   2. open “Edit photo”
   3. open “Edit photo”
   4. open “Video”
   Which screen are you on now? (a) Quiz (b) Lessons (c) Edit photo (d) Video
9. 9.🖼️ In this wireframe (top to bottom), what is right below the top bar?
   [ top bar ]
   [ list of items ]
   [ Add button ]
   [ tab bar ] (a) tab bar (b) list of items (c) Add button
10. 10.💾 What does this code show? (Positions start at 0.)
    let friends = ["Arjun", "Zoya", "Meera"];
    show(friends[0]); (a) Meera (b) Zoya (c) Arjun
11. 11.True or false: a final design looks like the real app. (a) False (b) True
12. 12.💾 pop() takes off the last item. What does this code show?
    let notes = ["Maths", "Music", "Hindi", "Science"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Hindi (b) Science (c) Music (d) Maths
13. 13.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) a menu button (c) the back button
14. 14.Which of these is true of a tab bar? (a) hides extra links (b) shows 3 to 5 icons (c) goes to the last screen (d) opens a list of pages
15. 15.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) in the cloud (b) on the phone
16. 16.💾 In most code, the first item of a list is at position ___. (a) 1 (b) 10 (c) 2 (d) 0
17. 17.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) a menu button (c) the back button
18. 18.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) tiny tap areas
19. 19.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Pay → Results → Search → Pens
    Design B: Home → Offers → Pens → Size
21. 21.🔢 In a food-order flow, which comes first: “check the cart” or “pay for the order”? (a) check the cart (b) pay for the order
22. 22.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Search → Pens → Menu → Pay → Size
    Design B: Home → Results → Search → Pens → Offers → Confirm (a) Design A (b) Design B
23. 23.🔢 In a quiz-app flow, which comes FIRST? (a) see the final score (b) read a question (c) see if it is right (d) tap “Start quiz”
24. 24.Which colour pair is easy to read? (a) yellow on white (b) red on green (c) white on black (d) pale pink on white
25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Lessons tab
    3. open “Video”
    Which screen are you on now? (a) Video (b) Quiz (c) Friend list (d) Lessons
26. 26.🔍 Which is the odd one out? (a) how easy sign-up is (b) the button colours (c) whether users get lost (d) how users feel after
27. 27.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) write a caption (b) post the photo (c) take the photo (d) add a filter
28. 28.🔢 In a photo-post flow, which comes first: “add a filter” or “open the camera screen”? (a) open the camera screen (b) add a filter
29. 29.True or false: a draft you are typing fits saving on the phone. (a) True (b) False
30. 30.True or false: notes to read offline fits saving in the cloud. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Caption: 14 px
    Body text: 22 px
    Hint: 26 px (a) Hint (b) Body text (c) Caption (d) Label
32. 32.🔘 Is this good or poor button design: a tiny 20 px button? (a) good design (b) poor design
33. 33.True or false: a final design is a quick sketch. (a) False (b) True
34. 34.🎨 Is this about UI or UX: whether users get lost? (a) UI (b) UX
35. 35.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
36. 36.True or false: your last game level fits saving on the phone. (a) False (b) True
37. 37.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Results → Menu → Size → Confirm
    Design B: Home → Shop → Confirm
38. 38.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Menu: 12 px
    Label: 16 px
    Hint: 21 px (a) Label (b) Hint (c) Caption (d) Menu
40. 40.Which of these is true of a final design? (a) is a quick sketch (b) shows where things go (c) uses plain grey boxes (d) looks like the real app

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