App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 846 · 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.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Menu → Cart → Pay → Pens → Shop → Search
   Design B: Home → Shop → Results (a) Design B (b) Design A
2. 2.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Edit photo”
   2. open “Score card”
   3. open “Edit photo”
   4. tap the Feed tab
   How many times must you tap Back to reach the main screen of this tab?
3. 3.🔢 In a sign-up flow, which comes FIRST? (a) tap “Sign up” (b) make a password (c) open the app (d) see the home screen
4. 4.🎨 A beautiful app that confuses everyone has ___. (a) good UX but poor UI (b) no UI at all (c) good UI but poor UX (d) perfect UX
5. 5.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
6. 6.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
7. 7.🔍 Which is the odd one out? (a) the button colours (b) the theme colours (c) how users feel after (d) the icon shapes
8. 8.🔢 In a photo-post flow, which comes LAST? (a) take the photo (b) post the photo (c) open the camera screen (d) write a caption
9. 9.🔘 Our rule: buttons are at least 48 px tall. The Send button is 24 px tall. How many px taller must it be?
10. 10.🔢 In a food-order flow, what comes right after “check the cart”? (a) pay for the order (b) open the menu (c) track the order (d) pick a dish
11. 11.Which of these is about UX (the experience)? (a) whether users get lost (b) the theme colours (c) the icon shapes (d) the screen layout
12. 12.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
13. 13.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 24 px tall
    Cancel button: 48 px tall
    Send button: 68 px tall (a) Next (b) Cancel (c) Send
14. 14.🔢 In a quiz-app flow, which comes LAST? (a) see if it is right (b) pick an answer (c) see the final score (d) read a question
15. 15.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ tab bar ]
    [ Add button ]
    [ Save button ]
    [ top bar ]
16. 16.Which of these is about UI (the look)? (a) how users feel after (b) whether users get lost (c) how many taps it takes (d) the theme colours
17. 17.Which of these is true of a tab bar? (a) undoes one move (b) hides extra links (c) switches main sections (d) goes to the last screen
18. 18.🔘 Is this good or poor button design: a tiny 20 px button? (a) poor design (b) good design
19. 19.🔀 What is a user flow? (a) a charging cable (b) a colour theme (c) a type of font (d) the path through screens
20. 20.True or false: a wireframe looks like the real app. (a) False (b) True
21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Profile tab
    3. tap the Home tab
    Which screen are you on now? (a) Profile (b) Search (c) Home
22. 22.💾 What number does this code show?
    let points = 3;
    points = points - 3;
    points = points + 3;
    show(points);
23. 23.🔘 Our rule: buttons are at least 48 px tall. The Back button is 44 px tall. How many px taller must it be?
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. open “Badges”
    3. open “Map”
    4. tap Back
    Which screen are you on now? (a) Map (b) Edit photo (c) Home (d) Badges
25. 25.🎨 Is this about UI or UX: whether users get lost? (a) UI (b) UX
26. 26.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Cart → Pens → Confirm → Item → Shop
    Design B: Home → Cart → Size → Menu → Pens → Results (a) Design B (b) Design A
27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. open “Map”
    3. tap the Chat tab
    Which screen are you on now? (a) Chat (b) Settings (c) Feed (d) Map
28. 28.🔀 In a good flow, each screen should lead to ___. (a) a dead end (b) a clear next step (c) a random page (d) the same screen
29. 29.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
30. 30.🔍 Which is the odd one out? (a) how fast a task is done (b) the button colours (c) how users feel after (d) how easy sign-up is
31. 31.Which of these helps everyone use the app? (a) fast-flashing lights (b) big touch targets (c) colour as the only clue (d) tiny tap areas
32. 32.Which of these fits saving on the phone? (a) chat messages to friends (b) a shared to-do list (c) notes to read offline (d) photos on two devices
33. 33.💾 Which works with no internet at all? (a) a cloud backup (b) a shared chat (c) a cloud leaderboard (d) data saved on the phone
34. 34.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
35. 35.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Edit photo”
    3. tap Back
    4. open “Badges”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
36. 36.True or false: a clear word like Save is poor button design. (a) False (b) True
37. 37.✏️ What is a wireframe? (a) a charging cable (b) a simple screen sketch (c) the finished app (d) a type of password
38. 38.Which of these is true of the back button? (a) shows 3 to 5 icons (b) hides extra links (c) undoes one move (d) switches main sections
39. 39.🔍 Which is the odd one out? (a) how fast a task is done (b) how many taps it takes (c) the screen layout (d) how easy sign-up is
40. 40.💾 What number does this code show?
    let friends = ["Aman", "Meera", "Riya", "Arjun"];
    friends.push("Kabir");
    friends.push("Zoya");
    show(friends.length);

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students