App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 729 · 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 is the odd one out? (a) tiny tap areas (b) icons with no labels (c) strong colour contrast (d) colour as the only clue
2. 2.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read
3. 3.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Shop → Confirm → Cart → Size
   Design B: Home → Pay → Offers → Shop → Item → Confirm
4. 4.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Next button: 48 px tall
   Back button: 64 px tall
   Start button: 40 px tall
5. 5.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
6. 6.Which of these is true of a final design? (a) shows the real fonts (b) has no real colours (c) uses plain grey boxes (d) is a quick sketch
7. 7.💾 What number does this code show?
   let stars = 3;
   stars = stars - 1;
   stars = stars + 2;
   show(stars);
8. 8.💾 What number does this code show?
   let songs = ["Monsoon", "Ocean", "Rain", "Sunrise"];
   songs.push("Kites");
   songs.push("Stars");
   show(songs.length);
9. 9.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) in the cloud (b) on the phone
10. 10.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Search → Confirm
    Design B: Home → Shop → Cart → Item
11. 11.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) text that can grow
12. 12.🔘 Our rule: buttons are at least 48 px tall. The Save button is 24 px tall. How many px taller must it be?
13. 13.Which colour pair is hard to read? (a) dark blue on white (b) black on pale grey (c) dark blue on black (d) white on dark green
14. 14.🔢 In a photo-post flow, which comes LAST? (a) post the photo (b) open the camera screen (c) add a filter (d) take the photo
15. 15.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
16. 16.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
17. 17.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
18. 18.Which of these fits saving in the cloud? (a) chat messages to friends (b) your last game level (c) notes to read offline (d) a draft you are typing
19. 19.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
20. 20.🔍 Which is the odd one out? (a) whether users get lost (b) the font size (c) how users feel after (d) how easy sign-up is
21. 21.Which of these is true of a wireframe? (a) uses the final pictures (b) shows the real fonts (c) uses plain grey boxes (d) looks like the real app
22. 22.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 32 px tall
    Next button: 52 px tall
    Done button: 48 px tall (a) Next (b) Cancel (c) Done
23. 23.Which of these is true of a wireframe? (a) is a quick sketch (b) looks like the real app (c) shows the real fonts (d) uses the final pictures
24. 24.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) pick an answer (b) see the final score (c) read a question (d) tap “Start quiz”
25. 25.🔢 In a food-order flow, which comes FIRST? (a) open the menu (b) track the order (c) add it to the cart (d) pay for the order
26. 26.💾 What is a variable? (a) a type of screen (b) a picture (c) a phone setting (d) a named box for a value
27. 27.🎨 UX stands for user ___. (a) extra (b) experience (c) express (d) example
28. 28.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 1 (c) 3 to 5 (d) 20
29. 29.💾 pop() takes off the last item. What does this code show?
    let friends = ["Meera", "Arjun", "Kabir", "Riya", "Zoya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Riya (b) Kabir (c) Meera (d) Arjun
30. 30.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
31. 31.True or false: a final design shows where things go. (a) False (b) True
32. 32.Which of these is about UI (the look)? (a) how many taps it takes (b) how easy sign-up is (c) the screen layout (d) how fast a task is done
33. 33.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
34. 34.True or false: chat messages to friends fits saving in the cloud. (a) False (b) True
35. 35.🔀 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
36. 36.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 60 px tall
    Start button: 56 px tall
    Next button: 40 px tall
37. 37.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 48 px tall
    Save button: 24 px tall
    Done button: 68 px tall (a) Save (b) Send (c) Done
38. 38.✏️ What is a wireframe? (a) a charging cable (b) a type of password (c) the finished app (d) a simple screen sketch
39. 39.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Badges”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?

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