App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 834 · 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.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
2. 2.True or false: a clear word like Save is poor button design. (a) True (b) False
3. 3.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) dead end (c) home screen (d) shortcut
4. 4.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Menu → Search
   Design B: Home → Shop → Search → Confirm → Item → Pay → Address
6. 6.🔢 In a quiz-app flow, which comes first: “read a question” or “see if it is right”? (a) see if it is right (b) read a question
7. 7.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Offers → Size → Results
   Design B: Home → Pay → Cart
8. 8.True or false: your last game level fits saving on the phone. (a) True (b) False
9. 9.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
10. 10.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “see if it is right”? (a) tap “Start quiz” (b) see if it is right
11. 11.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) fast-flashing lights (d) tiny tap areas
12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap the Quiz tab
    3. open “Match report”
    4. tap the Me tab
    5. open “Map”
    Which screen are you on now? (a) Lessons (b) Match report (c) Badges (d) Map
13. 13.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Size → Cart → Item → Results
    Design B: Home → Offers → Pay → Item → Confirm (a) Design A (b) Design B
14. 14.🧭 Tapping a tab usually takes you to ___. (a) the last app used (b) that tab’s main screen (c) the phone settings (d) a random page
15. 15.True or false: how fast a task is done is about UI (the look). (a) True (b) False
16. 16.💾 What number does this code show?
    let lives = 8;
    lives = lives - 3;
    lives = lives + 5;
    show(lives);
17. 17.💾 pop() takes off the last item. What does this code show?
    let songs = ["Rain", "Sunrise", "Stars", "Kites", "Ocean"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Rain (b) Sunrise (c) Kites (d) Stars
18. 18.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a wireframe (b) a final design
19. 19.Which of these is true of a final design? (a) looks like the real app (b) has no real colours (c) shows where things go (d) uses plain grey boxes
20. 20.🔢 In a food-order flow, what comes right after “open the menu”? (a) add it to the cart (b) pick a dish (c) track the order (d) pay for the order
21. 21.True or false: a wireframe uses the final pictures. (a) False (b) True
22. 22.Which of these is true of a tab bar? (a) opens a list of pages (b) hides extra links (c) sits at the bottom (d) goes to the last screen
23. 23.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
24. 24.True or false: your last game level fits saving in the cloud. (a) True (b) False
25. 25.True or false: a final design has the real colours. (a) True (b) False
26. 26.💾 Saving data in the cloud lets you ___. (a) skip the internet (b) shrink the app (c) use it on any device (d) never need a password
27. 27.💾 What number does this code show?
    let songs = ["Rain", "Kites", "Stars"];
    songs.push("Monsoon");
    show(songs.length);
28. 28.True or false: a class leaderboard fits saving on the phone. (a) True (b) False
29. 29.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 64 px tall
    Back button: 24 px tall
    Help button: 64 px tall (a) Back (b) Next (c) Help
30. 30.💾 pop() takes off the last item. What does this code show?
    let friends = ["Kabir", "Aman", "Arjun"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Aman (b) Arjun (c) Kabir
31. 31.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ search box ]
    [ filter buttons ]
    [ list of items ]
32. 32.True or false: a final design has no real colours. (a) True (b) False
33. 33.💾 Which works with no internet at all? (a) a cloud backup (b) a cloud leaderboard (c) data saved on the phone (d) a shared chat
34. 34.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
35. 35.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 28 px tall
    Cancel button: 60 px tall
    Help button: 60 px tall (a) Cancel (b) Help (c) Next
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Hint: 9 px
    Body text: 20 px (a) Body text (b) Title (c) Hint
37. 37.Which of these is true of a tab bar? (a) hides extra links (b) goes to the last screen (c) opens a list of pages (d) shows 3 to 5 icons
38. 38.🧭 Why should every screen show where you are? (a) to hide the menu (b) so users do not get lost (c) to use more battery (d) to look busy
39. 39.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
40. 40.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) goes to the last screen (c) opens a list of pages (d) undoes one move

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