App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 567 · 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: buttons are at least 48 px tall. The Cancel button is 24 px tall. How many px taller must it be?
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 16 px
   Label: 14 px
   Hint: 22 px (a) Hint (b) Body text (c) Label
3. 3.💾 What is a variable? (a) a named box for a value (b) a type of screen (c) a picture (d) a phone setting
4. 4.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Menu → Offers → Results
   Design B: Home → Offers → Address (a) Design A (b) Design B
5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Lessons tab
   2. tap the Lessons tab
   3. open “Video”
   How many times must you tap Back to reach the main screen of this tab?
6. 6.True or false: a final design shows where things go. (a) False (b) True
7. 7.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Help page”
   2. open “Map”
   3. tap the Chat tab
   How many times must you tap Back to reach the main screen of this tab?
8. 8.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Home tab
   2. open “Match report”
   3. open “Match report”
   4. tap Back
   5. tap the Profile tab
   Which screen are you on now? (a) Profile (b) Match report (c) Search (d) Home
9. 9.🎨 A beautiful app that confuses everyone has ___. (a) no UI at all (b) perfect UX (c) good UI but poor UX (d) good UX but poor UI
10. 10.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
11. 11.🔢 In a food-order flow, what comes right after “open the menu”? (a) pay for the order (b) add it to the cart (c) track the order (d) pick a dish
12. 12.Which of these fits saving on the phone? (a) a class leaderboard (b) notes to read offline (c) chat messages to friends (d) photos on two devices
13. 13.💾 What number does this code show?
    let friends = ["Arjun", "Riya", "Aman"];
    friends.push("Kabir");
    friends.push("Meera");
    show(friends.length);
14. 14.🔢 In a quiz-app flow, which comes first: “see the final score” or “tap “Start quiz””? (a) see the final score (b) tap “Start quiz”
15. 15.🔍 Which is the odd one out? (a) the button colours (b) the icon shapes (c) how many taps it takes (d) the screen layout
16. 16.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Address → Cart → Search → Shop → Menu
    Design B: Home → Confirm → Address → Size (a) Design A (b) Design B
17. 17.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
18. 18.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Item → Pens → Pay → Search → Cart
    Design B: Home → Shop → Offers
19. 19.🔢 In a sign-up flow, which comes FIRST? (a) make a password (b) see the home screen (c) open the app (d) tap “Sign up”
20. 20.🧭 Which part of navigation undoes one move? (a) a tab bar (b) the back button (c) a menu button
21. 21.✏️ What is a wireframe? (a) a type of password (b) a simple screen sketch (c) a charging cable (d) the finished app
22. 22.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
23. 23.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ Save button ]
    [ Add button ]
    [ top bar ]
    [ title text ]
    [ search box ] (a) title text (b) search box (c) Save button (d) Add button
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Title: 23 px
    Caption: 13 px
    Menu: 20 px
25. 25.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) a dead end (c) a random page (d) the same screen
26. 26.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) check the cart (b) pay for the order (c) track the order (d) open the menu
27. 27.Which colour pair is easy to read? (a) black on yellow (b) yellow on white (c) red on green (d) dark blue on black
28. 28.True or false: notes to read offline fits saving on the phone. (a) False (b) True
29. 29.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
30. 30.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
31. 31.🖼️ In this wireframe (top to bottom), what is right above the title text?
    [ search box ]
    [ title text ]
    [ Save button ]
    [ top bar ] (a) search box (b) top bar (c) Save button
32. 32.🔀 What is a user flow? (a) a type of font (b) a charging cable (c) the path through screens (d) a colour theme
33. 33.🧭 What does the back button usually do? (a) closes all apps (b) deletes the page (c) opens settings (d) goes to the last screen
34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Badges”
    3. tap the Home tab
    Which screen are you on now? (a) Profile (b) Badges (c) Home (d) Search
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 22 px
    Body text: 10 px
    Caption: 16 px
    Hint: 20 px
    Footer: 24 px
36. 36.Which of these makes the app harder to use? (a) strong colour contrast (b) sudden loud sounds (c) labels on every icon (d) captions on videos
37. 37.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) icons with no labels (d) captions on videos
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 18 px
    Footer: 14 px
    Caption: 24 px
    Menu: 16 px
    Title: 28 px (a) Label (b) Caption (c) Menu (d) Footer
39. 39.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
40. 40.Which of these helps everyone use the app? (a) colour as the only clue (b) strong colour contrast (c) sudden loud sounds (d) fast-flashing lights

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