App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 964 · 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.🎨 Fewer taps to finish a task usually means ___. (a) worse UX (b) better UX (c) more colours (d) a bigger app
2. 2.Which of these is true of a final design? (a) has no real colours (b) is a quick sketch (c) uses plain grey boxes (d) shows the real fonts
3. 3.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) colour as the only clue (d) text that can grow
4. 4.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a final design (b) a wireframe
5. 5.🖼️ How many parts (boxes) does this wireframe have?
   [ Save button ]
   [ filter buttons ]
   [ search box ]
   [ list of items ]
   [ Add button ]
   [ menu icon ]
6. 6.🔍 Which is the odd one out? (a) the screen layout (b) whether users get lost (c) the font size (d) the icon shapes
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 16 px
   Footer: 14 px
   Body text: 10 px
   Hint: 19 px
   Caption: 24 px
8. 8.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) fast-flashing lights (d) labels on every icon
9. 9.Which of these is true of a final design? (a) has no real colours (b) is a quick sketch (c) uses plain grey boxes (d) has the real colours
10. 10.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 44 px tall
    Start button: 60 px tall
    Done button: 44 px tall
11. 11.🔢 In a quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) pick an answer (c) see if it is right (d) see the final score
12. 12.Which of these fits saving in the cloud? (a) chat messages to friends (b) your last game level (c) the sound on/off setting (d) a draft you are typing
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Label: 17 px
    Caption: 11 px
    Title: 21 px (a) Menu (b) Label (c) Caption (d) Title
14. 14.Which of these is true of a wireframe? (a) shows the real fonts (b) has the real colours (c) uses the final pictures (d) uses plain grey boxes
15. 15.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
16. 16.🎨 UI stands for user ___. (a) input (b) interface (c) idea (d) internet
17. 17.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Title: 16 px
    Label: 11 px
    Footer: 20 px (a) Label (b) Title (c) Footer (d) Hint
19. 19.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
20. 20.💾 What is a variable? (a) a named box for a value (b) a phone setting (c) a picture (d) a type of screen
21. 21.💾 What number does this code show?
    let points = 6;
    points = points - 2;
    points = points + 5;
    show(points);
22. 22.🔢 In a sign-up flow, which comes FIRST? (a) open the app (b) make a password (c) type name and email (d) enter the code sent
23. 23.🔢 In a sign-up flow, which comes LAST? (a) open the app (b) type name and email (c) enter the code sent (d) see the home screen
24. 24.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) colour as the only clue (d) strong colour contrast
25. 25.💾 What number does this code show?
    let songs = ["Rain", "Stars", "Sunrise", "Ocean"];
    songs.push("Kites");
    show(songs.length);
26. 26.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a tab bar (c) a menu button
27. 27.💾 What number does this code show?
    let coins = 6;
    coins = coins - 5;
    coins = coins + 5;
    show(coins);
28. 28.🔍 Which is the odd one out? (a) how users feel after (b) whether users get lost (c) how easy sign-up is (d) the theme colours
29. 29.🔢 In a food-order flow, which comes first: “open the menu” or “check the cart”? (a) check the cart (b) open the menu
30. 30.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) nowhere (c) at the bottom (d) inside a button
31. 31.🔢 In a photo-post flow, what comes right after “write a caption”? (a) add a filter (b) open the camera screen (c) post the photo (d) take the photo
32. 32.Which of these is true of a tab bar? (a) opens a list of pages (b) goes to the last screen (c) shows 3 to 5 icons (d) undoes one move
33. 33.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Friend list”
    3. open “Help page”
    4. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
34. 34.🔀 Why plan the user flow before building? (a) to hide the buttons (b) to skip testing (c) to add more taps (d) so each step is clear
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Title: 19 px
    Footer: 14 px
    Caption: 17 px
    Hint: 20 px
36. 36.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Address
    Design B: Home → Search → Item → Shop → Pay → Size → Results (a) Design B (b) Design A
37. 37.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
38. 38.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) icons with no labels (d) sudden loud sounds
39. 39.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
40. 40.Which colour pair is hard to read? (a) white on black (b) black on pale grey (c) dark blue on black (d) black on yellow

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