App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 949 · 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 photo-post flow, which comes FIRST? (a) add a filter (b) take the photo (c) post the photo (d) open the camera screen
2. 2.Which of these is about UX (the experience)? (a) the theme colours (b) the icon shapes (c) how users feel after (d) the button colours
3. 3.Which of these is about UI (the look)? (a) how many taps it takes (b) whether users get lost (c) how easy sign-up is (d) the button colours
4. 4.🔘 Our rule: buttons are at least 48 px tall. The Start button is 20 px tall. How many px taller must it be?
5. 5.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
6. 6.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) text that can grow (d) icons with no labels
7. 7.🖼️ How many parts (boxes) does this wireframe have?
   [ list of items ]
   [ top bar ]
   [ big picture ]
   [ tab bar ]
   [ title text ]
8. 8.Which of these is true of the back button? (a) shows 3 to 5 icons (b) goes to the last screen (c) sits at the bottom (d) hides extra links
9. 9.True or false: space between buttons is poor button design. (a) False (b) True
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Caption: 19 px
    Label: 13 px
    Body text: 10 px
11. 11.True or false: how users feel after is about UI (the look). (a) False (b) True
12. 12.🎨 UX stands for user ___. (a) experience (b) example (c) extra (d) express
13. 13.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
14. 14.🔍 Which is the odd one out? (a) the font size (b) how many taps it takes (c) the screen layout (d) the button colours
15. 15.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 48 px tall
    Save button: 72 px tall
    Done button: 48 px tall
    Next button: 32 px tall (a) Send (b) Save (c) Done (d) Next
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Hint: 17 px
    Menu: 13 px
    Caption: 21 px (a) Hint (b) Title (c) Caption (d) Menu
17. 17.🔢 In a food-order flow, what comes right after “pay for the order”? (a) add it to the cart (b) pick a dish (c) track the order (d) check the cart
18. 18.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) labels on every icon (d) text that can grow
19. 19.🖼️ How many parts (boxes) does this wireframe have?
    [ filter buttons ]
    [ Save button ]
    [ tab bar ]
    [ list of items ]
20. 20.Which of these helps everyone use the app? (a) colour as the only clue (b) text that can grow (c) icons with no labels (d) tiny tap areas
21. 21.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Music", "Hindi", "Sports"];
    show(notes[2]); (a) Music (b) Sports (c) Hindi (d) Maths
22. 22.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Map”
    3. open “Edit photo”
    4. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
23. 23.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
24. 24.True or false: a wireframe is a quick sketch. (a) True (b) False
25. 25.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. open “Badges”
    3. tap Back
    4. tap Back
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
27. 27.True or false: chat messages to friends fits saving in the cloud. (a) True (b) False
28. 28.Which of these is true of a tab bar? (a) goes to the last screen (b) switches main sections (c) opens a list of pages (d) hides extra links
29. 29.🔢 In a sign-up flow, which comes first: “type name and email” or “open the app”? (a) type name and email (b) open the app
30. 30.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
31. 31.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a wireframe (b) a final design
32. 32.🧭 What does the back button usually do? (a) deletes the page (b) opens settings (c) goes to the last screen (d) closes all apps
33. 33.🔘 Our rule: buttons are at least 48 px tall. The Start button is 40 px tall. How many px taller must it be?
34. 34.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Results → Confirm → Cart → Item
    Design B: Home → Offers → Shop (a) Design B (b) Design A
35. 35.Which of these is true of a menu button? (a) switches main sections (b) undoes one move (c) hides extra links (d) goes to the last screen
36. 36.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
37. 37.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 36 px tall
    Next button: 36 px tall
    Save button: 60 px tall
38. 38.🔢 In a food-order flow, which comes first: “pick a dish” or “track the order”? (a) track the order (b) pick a dish
39. 39.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) in the middle (c) nowhere (d) at the bottom
40. 40.Which of these fits saving in the cloud? (a) a class leaderboard (b) your last game level (c) a draft you are typing (d) notes to read offline

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