App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 549 · 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.🔢 In a food-order flow, which comes first: “check the cart” or “pay for the order”? (a) pay for the order (b) check the cart
2. 2.🌗 Is red on green easy or hard to read on a button? (a) hard to read (b) easy to read
3. 3.Which of these is about UI (the look)? (a) the icon shapes (b) how many taps it takes (c) how fast a task is done (d) whether users get lost
4. 4.True or false: grey text on grey is good button design. (a) True (b) False
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Address → Pens
   Design B: Home → Pens → Menu → Cart → Shop
6. 6.Which of these fits saving on the phone? (a) chat messages to friends (b) a shared to-do list (c) a class leaderboard (d) your last game level
7. 7.Which colour pair is easy to read? (a) pale pink on white (b) dark blue on black (c) red on green (d) black on yellow
8. 8.💾 What number does this code show?
   let friends = ["Aman", "Riya"];
   friends.push("Zoya");
   show(friends.length);
9. 9.🖼️ In this wireframe (top to bottom), what is right below the list of items?
   [ Add button ]
   [ title text ]
   [ big picture ]
   [ list of items ]
   [ search box ] (a) search box (b) big picture (c) Add button (d) title text
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Title: 11 px
    Hint: 11 px
    Body text: 18 px
11. 11.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
12. 12.🔢 In a photo-post flow, which comes LAST? (a) add a filter (b) post the photo (c) open the camera screen (d) take the photo
13. 13.True or false: icons with no meaning is good button design. (a) False (b) True
14. 14.✏️ What is a wireframe? (a) a simple screen sketch (b) a type of password (c) the finished app (d) a charging cable
15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Score card”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
16. 16.🔢 In a quiz-app flow, which comes FIRST? (a) tap “Start quiz” (b) read a question (c) see the final score (d) pick an answer
17. 17.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) strong colour contrast (d) text that can grow
18. 18.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ title text ]
    [ tab bar ]
    [ top bar ]
    [ Add button ] (a) tab bar (b) top bar (c) Add button
19. 19.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap Back
    3. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
20. 20.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Size
    Design B: Home → Results → Confirm → Menu (a) Design B (b) Design A
21. 21.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
22. 22.Which of these is true of a final design? (a) has no real colours (b) shows where things go (c) is a quick sketch (d) has the real colours
23. 23.💾 What number does this code show?
    let score = 6;
    score = score - 2;
    score = score + 3;
    show(score);
24. 24.🎨 UX stands for user ___. (a) extra (b) example (c) express (d) experience
25. 25.True or false: a class leaderboard fits saving in the cloud. (a) True (b) False
26. 26.🌗 Is dark blue on black easy or hard to read on a button? (a) easy to read (b) hard to read
27. 27.🔍 Which is the odd one out? (a) the theme colours (b) the font size (c) the button colours (d) how easy sign-up is
28. 28.True or false: a tiny 20 px button is poor button design. (a) False (b) True
29. 29.💾 What number does this code show?
    let score = 4;
    score = score - 1;
    score = score + 1;
    show(score);
30. 30.🔘 Is this good or poor button design: a tiny 20 px button? (a) poor design (b) good design
31. 31.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) on the phone (b) in the cloud
32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Badges”
    3. tap Back
    4. tap the Chat tab
    5. open “Map”
    Which screen are you on now? (a) Match report (b) Map (c) Badges (d) Feed
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Label: 10 px
    Body text: 11 px
34. 34.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
35. 35.True or false: a wireframe uses plain grey boxes. (a) True (b) False
36. 36.🧭 What does the back button usually do? (a) goes to the last screen (b) opens settings (c) deletes the page (d) closes all apps
37. 37.True or false: strong colour contrast is good button design. (a) True (b) False
38. 38.🔢 In a food-order flow, which comes first: “pick a dish” or “open the menu”? (a) pick a dish (b) open the menu
39. 39.💾 Which works with no internet at all? (a) a cloud leaderboard (b) a cloud backup (c) a shared chat (d) data saved on the phone
40. 40.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 44 px tall
    Done button: 72 px tall
    Send button: 68 px tall (a) Done (b) Send (c) Cancel

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