App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 150 · 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 is true of a final design? (a) shows where things go (b) is a quick sketch (c) has the real colours (d) uses plain grey boxes
2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Feed tab
   2. tap the Settings tab
   3. open “Badges”
   4. open “Video”
   How many times must you tap Back to reach the main screen of this tab?
3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Home tab
   2. open “Friend list”
   3. tap Back
   4. open “Edit photo”
   Which screen are you on now? (a) Friend list (b) Edit photo (c) Home (d) Search
4. 4.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Next button: 48 px tall
   Cancel button: 28 px tall
   Send button: 52 px tall (a) Cancel (b) Next (c) Send
5. 5.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) text that can grow (d) icons with no labels
6. 6.💾 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
7. 7.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Match report”
   2. open “Badges”
   3. tap the Quiz tab
   4. open “Help page”
   Which screen are you on now? (a) Help page (b) Match report (c) Lessons (d) Badges
9. 9.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Save button: 68 px tall
   Cancel button: 32 px tall
   Back button: 60 px tall
   Start button: 64 px tall (a) Back (b) Cancel (c) Start (d) Save
10. 10.Which of these fits saving in the cloud? (a) the sound on/off setting (b) a draft you are typing (c) notes to read offline (d) photos on two devices
11. 11.Which colour pair is hard to read? (a) white on black (b) black on yellow (c) red on green (d) dark blue on white
12. 12.Which of these fits saving in the cloud? (a) the sound on/off setting (b) your last game level (c) a draft you are typing (d) chat messages to friends
13. 13.💾 What does this code show? (Positions start at 0.)
    let notes = ["Music", "Art", "Maths", "Hindi"];
    show(notes[1]); (a) Hindi (b) Music (c) Maths (d) Art
14. 14.🔘 Our rule: buttons are at least 48 px tall. The Back button is 36 px tall. How many px taller must it be?
15. 15.Which colour pair is hard to read? (a) light grey on white (b) white on black (c) black on pale grey (d) black on yellow
16. 16.🔀 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
17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. open “Help page”
    3. open “Edit photo”
    4. tap Back
    Which screen are you on now? (a) Edit photo (b) Lessons (c) Help page (d) Quiz
18. 18.🔢 In a food-order flow, what comes right after “pick a dish”? (a) pay for the order (b) add it to the cart (c) track the order (d) open the menu
19. 19.🖼️ In this wireframe (top to bottom), what is right below the big picture?
    [ title text ]
    [ tab bar ]
    [ big picture ]
    [ menu icon ] (a) tab bar (b) menu icon (c) title text
20. 20.True or false: notes to read offline fits saving in the cloud. (a) False (b) True
21. 21.🎨 Who should you test the UX with? (a) only yourself (b) real users (c) the app icon (d) nobody
22. 22.True or false: a wireframe looks like the real app. (a) False (b) True
23. 23.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
24. 24.Which of these makes the app harder to use? (a) colour as the only clue (b) labels on every icon (c) captions on videos (d) text that can grow
25. 25.Which of these fits saving on the phone? (a) a class leaderboard (b) a shared to-do list (c) a draft you are typing (d) chat messages to friends
26. 26.True or false: how users feel after is about UX (the experience). (a) False (b) True
27. 27.Which of these is true of a wireframe? (a) looks like the real app (b) shows the real fonts (c) uses the final pictures (d) uses plain grey boxes
28. 28.💾 What number does this code show?
    let friends = ["Riya", "Zoya"];
    friends.push("Kabir");
    friends.push("Aman");
    show(friends.length);
29. 29.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. tap the Chat tab
    3. tap the Feed tab
    4. open “Match report”
    Which screen are you on now? (a) Match report (b) Chat (c) Settings (d) Feed
30. 30.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap the Feed tab
    3. open “Score card”
    4. open “Video”
    5. open “Badges”
    Which screen are you on now? (a) Score card (b) Badges (c) Feed (d) Video
31. 31.🔢 In a quiz-app flow, which comes first: “see if it is right” or “pick an answer”? (a) pick an answer (b) see if it is right
32. 32.Which of these fits saving in the cloud? (a) the sound on/off setting (b) notes to read offline (c) your last game level (d) a shared to-do list
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Label: 16 px
    Caption: 15 px
    Title: 20 px
34. 34.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ Save button ]
    [ search box ]
    [ filter buttons ]
    [ tab bar ] (a) filter buttons (b) tab bar (c) Save button
35. 35.💾 What number does this code show?
    let friends = ["Aman", "Zoya", "Meera"];
    friends.push("Arjun");
    friends.push("Riya");
    show(friends.length);
36. 36.🔢 In a sign-up flow, what comes right after “open the app”? (a) type name and email (b) tap “Sign up” (c) enter the code sent (d) see the home screen
37. 37.🔀 What is a user flow? (a) the path through screens (b) a charging cable (c) a colour theme (d) a type of font
38. 38.💾 What number does this code show?
    let score = 7;
    score = score - 3;
    score = score + 4;
    show(score);
39. 39.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Size → Cart → Offers
    Design B: Home → Address → Offers → Item → Results → Size (a) Design B (b) Design A
40. 40.🧭 Why should every screen show where you are? (a) to look busy (b) to hide the menu (c) so users do not get lost (d) to use more battery

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