App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 572 · 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 most code, the first item of a list is at position ___. (a) 2 (b) 10 (c) 1 (d) 0
2. 2.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
3. 3.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
4. 4.✏️ Why draw a wireframe before coding? (a) it runs the app (b) it saves data (c) changes are quick (d) it adds colours
5. 5.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
6. 6.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
7. 7.🔢 In a photo-post flow, which comes FIRST? (a) open the camera screen (b) add a filter (c) take the photo (d) write a caption
8. 8.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Help button: 48 px tall
   Send button: 36 px tall
   Start button: 40 px tall
9. 9.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) pick an answer (b) see if it is right (c) see the final score (d) read a question
10. 10.🔢 In a photo-post flow, what comes right after “add a filter”? (a) take the photo (b) write a caption (c) post the photo (d) open the camera screen
11. 11.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
12. 12.Which of these is about UX (the experience)? (a) the button colours (b) the icon shapes (c) how users feel after (d) the font size
13. 13.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a text label (d) a bright colour
14. 14.🖼️ How many parts (boxes) does this wireframe have?
    [ menu icon ]
    [ top bar ]
    [ title text ]
    [ Save button ]
    [ Add button ]
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 13 px
    Footer: 23 px
    Menu: 17 px (a) Caption (b) Menu (c) Footer
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Size → Menu
    Design B: Home → Pens → Offers
17. 17.Which of these is about UI (the look)? (a) how many taps it takes (b) how users feel after (c) how easy sign-up is (d) the icon shapes
18. 18.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Friend list”
    2. open “Badges”
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
19. 19.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
20. 20.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. open “Badges”
    3. tap Back
    4. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
21. 21.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) make a password (b) enter the code sent (c) see the home screen (d) type name and email
22. 22.💾 What does this code show? (Positions start at 0.)
    let songs = ["Stars", "Monsoon", "Rain"];
    show(songs[1]); (a) Stars (b) Monsoon (c) Rain
23. 23.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
24. 24.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ title text ]
    [ top bar ]
    [ Add button ] (a) Add button (b) top bar (c) list of items (d) title text
25. 25.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Score card”
    3. tap Back
    4. open “Friend list”
    5. open “Friend list”
    Which screen are you on now? (a) Score card (b) Search (c) Friend list (d) Home
27. 27.🔢 In a quiz-app flow, which comes LAST? (a) tap “Start quiz” (b) read a question (c) pick an answer (d) see the final score
28. 28.Which of these is about UX (the experience)? (a) the theme colours (b) the screen layout (c) how fast a task is done (d) the icon shapes
29. 29.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ filter buttons ]
    [ Save button ]
    [ list of items ]
    [ top bar ]
    [ search box ]
    [ menu icon ] (a) search box (b) menu icon (c) top bar (d) Save button
30. 30.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
31. 31.🔢 In a food-order flow, what comes right after “open the menu”? (a) track the order (b) add it to the cart (c) pick a dish (d) check the cart
32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap the Me tab
    3. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?
33. 33.🔘 Our rule: buttons are at least 48 px tall. The Done button is 24 px tall. How many px taller must it be?
34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Score card”
    3. tap Back
    Which screen are you on now? (a) Score card (b) Search (c) Home (d) Profile
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Label: 22 px
    Caption: 14 px
    Title: 18 px
    Body text: 16 px
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 11 px
    Body text: 23 px
    Menu: 24 px (a) Body text (b) Menu (c) Hint
37. 37.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Pens → Shop → Results
    Design B: Home → Shop → Search → Results → Address → Cart (a) Design A (b) Design B
38. 38.Which of these is true of the back button? (a) shows 3 to 5 icons (b) opens a list of pages (c) hides extra links (d) undoes one move
39. 39.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
40. 40.🔢 In a food-order flow, which comes LAST? (a) check the cart (b) track the order (c) pick a dish (d) add it to the cart

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